Configuring Supplementary Telephony Services

By default, PBX users have been assigned the CLIP service right. If you want to configure the service right, perform the steps described in the following table.

Enable the CLIP service right for user 6000.

<Huawei> system-view 
[Huawei] voice 
[Huawei-voice] pbxuser 6000 
[Huawei-voice-pbxuser-6000] service-right clip enable 
[Huawei-voice-pbxuser-6000] save

This example assumes that user A has been assigned the CLIP service right.

• Scenario 1: User A is idle. If user B calls user A at this time, user B's number is displayed on user A's phone.
• Scenario 2: User A has been assigned the call waiting service right and is engaged in a call. If user B calls user A at this time, user B's number is displayed on user A's phone.

• If user B has been assigned the calling line identification restriction (CLIR) service right, user B's number will not be displayed on user A's phone.
• In scenario 2, user A's phone needs to support CLIP in off-hook state. IP phones and some POTS phones (for example, Panasonic KX-TSC11MX) support this function.

Enable the CLIR service right for user 6000.

<Huawei> system-view 
[Huawei] voice 
[Huawei-voice] pbxuser 6000 
[Huawei-voice-pbxuser-6000] service-right clir enable 
[Huawei-voice-pbxuser-6000] save

This example assumes that user A has been assigned the CLIR service right.

If user A places a call to user B, user A's number will not be displayed on user B's phone regardless of whether user B has been assigned the CLIP service right.

If user B has been assigned the CLIR override service right, user A's number will still be displayed on user B's phone.

Enable the CLIR override service right for user 6000.

<Huawei> system-view 
[Huawei] voice 
[Huawei-voice] pbxuser 6000 
[Huawei-voice-pbxuser-6000] service-right overstepclir enable 
[Huawei-voice-pbxuser-6000] save

This example assumes that user A has been assigned the CLIR override service right.

If user B places a call to user A, user B's number is displayed on user A's phone.

• Even if user B has been assigned the CLIR service right, user B's number is still displayed on user A's phone.
• For incoming calls routed through the R2 trunk groups, the CLIR override service does not take effect.
• When the calling party user B is an inter-office user, user A cannot see the phone number of user B.

Generally, if the called party has the calling line identification presentation (CLIP) service enabled, the calling party's number can be displayed to the called party. However, if the calling party does not want to display the calling number to the called party, the calling party can add a prefix to the called number during dialing to temporarily activate the CLIR service.

Configure prefix *175* for temporarily activating the CLIR service.

<Huawei> system-view 
[Huawei] voice 
[Huawei-voice] callprefix *175* 
[Huawei-voice-callprefix-*175*] prefix *175* 
[Huawei-voice-callprefix-*175*] call-type category supplementary-service attribute 175 
[Huawei-voice-callprefix-*175*] digit-length 5 32 
[Huawei-voice-callprefix-*175*] save

This example assumes that user B has the CLIP service enabled.

1. User A picks up the phone and hears the dial tone.

2. If user A directly dials user B's number, user A hears the ringback tone, user B's phone rings, and user A's number is displayed on user B's phone. If user A dials *175*User B's number#, user A hears the ringback tone, user B's phone rings, and user A's number is not displayed on user B's phone.

3. User B picks up the phone and talks with user A.

4. User A or B hangs up. The call ends.

If the calling party has the CLIR service enabled, the calling number is not displayed to the called party even when the called party has the CLIP service enabled. However, if the calling party wants to display the calling number to the called party, the calling party can add a prefix to the called number during dialing to temporarily deactivate the CLIR service.

Configure the CLIR service for number 6000. Prefix *176* is the prefix for temporarily deactivating the CLIR service.

<Huawei> system-view 
[Huawei] voice 
# Configure the service right. 
[Huawei-voice] pbxuser 6000
[Huawei-voice-pbxuser-6000] service-right clir enable 
[Huawei-voice-pbxuser-6000] quit 
# Configure a service prefix.
[Huawei-voice] callprefix *176*
[Huawei-voice-callprefix-*176*] prefix *176*
[Huawei-voice-callprefix-*176*] call-type category supplementary-service attribute 176
[Huawei-voice-callprefix-*176*] digit-length 5 32
[Huawei-voice-callprefix-*176*] save

This example assumes that user A has been assigned the CLIR service right and user B has the CLIP service enabled.

1. User A picks up the phone and hears the dial tone.

2. If user A directly dials user B's number, user A hears the ringback tone, user B's phone rings, and user A's number is not displayed on user B's phone. If user A dials *176*User B's number#, user A hears the ringback tone, user B's phone rings, and user A's number is displayed on user B's phone.

3. User B picks up the phone and talks with user A.

4. User A or B hangs up. The call ends.

The Connected Name Identification Presentation (CONP) service displays a called user's name on the calling user's terminal. Assume that A has the CONP service rights. When A calls B, B's name is displayed on A's phone. If B has subscribed to the explicit communication transfer (ECT) service, the call is transmitted to C. When C answers the call, C's name is displayed on A's phone. If B belongs to a user group, the name of the user group will be displayed on A's phone.

Requirements for implementing the CONP service are as follows:

• The phone of the calling user must support the CONP service and the connected line identification presentation service (number obtained from the PAI header field first).
• A name has been configured for the called user. Otherwise, there will be no name displayed on the calling user's phone.
• During intra-office calls, the PBX user type must be SIP.
• During inter-office calls, the CONP service can be implemented only by SIP users, SIP trunks, and H.323 trunks.

A PBX user has been configured. For details about the configuration, see Configuring a PBX User.

Enable the CONP service right for the user 6000.

<Huawei> system-view  
[Huawei] voice  
[Huawei-voice] pbxuser 6000  
[Huawei-voice-pbxuser-6000] service-right conp enable  
[Huawei-voice-pbxuser-6000] save

Enable the CONP service right for an intra-office user A. Set the name of an out-office user B to UserB. When A calls B over a SIP trunk, B's name UserB is displayed on A's phone.

The Calling Name Identification Presentation (CNIP) service, also the called Calling Line Identification Presentation (CLIP) service, displays a calling user's name on the called user's terminal. If A expects a calling user's name to be displayed on the terminal, A can enable the CNIP service. When A's terminal rings or A is answering a call, the calling user's name is displayed on A's phone.

Requirements for implementing the CNIP service are as follows:

• The phone of the called user must support the CNIP service.
• A name has been configured for the calling user. Otherwise, there will be no name displayed on the called user's phone.
• The CNIP service can be implemented only by SIP users, SIP trunks, and H.323 trunks.

A PBX user has been configured. For details about the configuration, see Configuring a PBX User.

By default, PBX users have the CNIP service right. To configure the CNIP service, perform the following steps.

Enable the CNIP service right for the user 6000.

<Huawei> system-view  
[Huawei] voice  
[Huawei-voice] pbxuser 6000  
[Huawei-voice-pbxuser-6000] service-right cnip enable  
[Huawei-voice-pbxuser-6000] save

Set the name of an out-office user A to UserA. Enable the CNIP service right for an intra-office user B. When A calls B over a SIP trunk, A's name UserA is displayed on B's phone.

A service prefix is required for the PBX to allow terminal users themselves to enable or disable a service.

Two service prefixes are involved: one for enabling the service and the other for disabling the service. Perform the steps described in the following table to configure the service prefixes one by one.

Enable the CFU service right for user 6000 and set the forwarded-to number to 6001. On the PBX, set the prefix for enabling the CFU service to *21* and the prefix for disabling the CFU service to *22*.

<Huawei> system-view 
[Huawei] voice 
# Configure the service right and forwarding scheme. 
[Huawei-voice] pbxuser 6000 
[Huawei-voice-pbxuser-6000] service-right cfu enable 
[Huawei-voice-pbxuser-6000] service cfu 6001 
[Huawei-voice-pbxuser-6000] quit 
# Configure a service prefix, for example, *21* for enabling the CFU service. 
[Huawei-voice] callprefix *21* 
[Huawei-voice-callprefix-*21*] prefix *21* 
[Huawei-voice-callprefix-*21*] call-type category new-supplementary-management attribute 21 
[Huawei-voice-callprefix-*21*] digit-length 4 32 
[Huawei-voice-callprefix-*21*] save

This example assumes that on the PBX, the prefix for enabling the CFU service is set to *21* and that for disabling the CFU service is set to *22*. User A has been assigned the CFU service right.

• Enabling the service

  User A picks up the phone and dials *21*forwarded-to number. An announcement is played, indicating that the service is enabled.

• Disabling the service

  User A picks up the phone and dials *22*. An announcement is played, indicating that the service is disabled.

This example assumes that user A has been assigned the CFU service right and enabled the CFU service that forwards calls to user B's number.

User C places a call to user A. The call is directly forwarded to user B.

A service prefix is required for the PBX to allow terminal users themselves to enable or disable a service.

Two service prefixes are involved: one for enabling the service and the other for disabling the service. Perform the steps described in the following table to configure the service prefixes one by one.

Enable the CFNR service right for user 6000 and set the forwarded-to number to 6001. On the PBX, set the prefix for enabling the CFNR service to *25* and the prefix for disabling the CFNR service to *26*.

<Huawei> system-view 
[Huawei] voice 
# Configure the service right and forwarding scheme. 
[Huawei-voice] pbxuser 6000 
[Huawei-voice-pbxuser-6000] service-right cfnr enable 
[Huawei-voice-pbxuser-6000] service cfnr telno 6001 
[Huawei-voice-pbxuser-6000] quit 
# Configure a service prefix, for example, *25* for enabling the CFNR service.
[Huawei-voice] callprefix *25* 
[Huawei-voice-callprefix-*25*] prefix *25* 
[Huawei-voice-callprefix-*25*] call-type category new-supplementary-management attribute 25 
[Huawei-voice-callprefix-*25*] digit-length 4 32 
[Huawei-voice-callprefix-*25*] save

This example assumes that on the PBX, the prefix for enabling the CFNR service is set to *25* and that for disabling the CFNR service is set to *26*. User A has been assigned the CFNR service right.

• Enabling the service

  User A picks up the phone and dials *25*forwarded-to number. An announcement is played, indicating that the service is enabled.

• Disabling the service

  User A picks up the phone and dials *26*. An announcement is played, indicating that the service is disabled.

The waiting time is 30s by default if a user dials a prefix to enable the CFNR service.

This example assumes that user A has been assigned the CFNR service right and enabled the CFNR service that forwards calls to user B's number. The waiting time is 30s.

User C places a call to user A. The call is forwarded to user B if user A does not answer the call within 30s.

A service prefix is required for the PBX to allow terminal users themselves to enable or disable a service.

Two service prefixes are involved: one for enabling the service and the other for disabling the service. Perform the steps described in the following table to configure the service prefixes one by one.

Enable the CFB service right for user 6000 and set the forwarded-to number to 6001. On the PBX, set the prefix for enabling the CFB service to *23* and the prefix for disabling the CFB service to *24*.

<Huawei> system-view 
[Huawei] voice 
# Configure the service right and forwarding scheme. 
[Huawei-voice] pbxuser 6000 
[Huawei-voice-pbxuser-6000] service-right cfb enable 
[Huawei-voice-pbxuser-6000] service cfb 6001 
[Huawei-voice-pbxuser-6000] quit 
# Configure a service prefix, for example, *23* for enabling the CFB service. 
[Huawei-voice] callprefix *23* 
[Huawei-voice-callprefix-*23*] prefix *23* 
[Huawei-voice-callprefix-*23*] call-type category new-supplementary-management attribute 23 
[Huawei-voice-callprefix-*23*] digit-length 4 32 
[Huawei-voice-callprefix-*23*] save

This example assumes that on the PBX, the prefix for enabling the CFB service is set to *23* and that for disabling the CFB service is set to *24*. User A has been assigned the CFB service right.

• Enabling the service

  User A picks up the phone and dials *23*forwarded-to number. An announcement is played, indicating that the service is enabled.

• Disabling the service

  User A picks up the phone and dials *24*. An announcement is played, indicating that the service is disabled.

This example assumes that user A has been assigned the CFB service right and enabled the CFB service that forwards calls to user B's number.

User C places a call to user A. The call is forwarded to user B if user A is already engaged in a call.

A service prefix is required for the PBX to allow terminal users themselves to enable or disable a service.

Two service prefixes are involved: one for enabling the service and the other for disabling the service. Perform the steps described in the following table to configure the service prefixes one by one.

Enable the CFO service right for user 6000 and set the forwarded-to number to 6001. On the PBX, set the prefix for enabling the CFO service to *27* and the prefix for disabling the CFO service to *28*.

<Huawei> system-view 
[Huawei] voice 
# Configure the service right and forwarding scheme. 
[Huawei-voice] pbxuser 6000 
[Huawei-voice-pbxuser-6000] service-right cfo enable 
[Huawei-voice-pbxuser-6000] service cfo 6001 
[Huawei-voice-pbxuser-6000] quit 
# Configure a service prefix, for example, *27* for enabling the CFO service. 
[Huawei-voice] callprefix *27* 
[Huawei-voice-callprefix-*27*] prefix *27* 
[Huawei-voice-callprefix-*27*] call-type category new-supplementary-management attribute 27 
[Huawei-voice-callprefix-*27*] digit-length 4 32 
[Huawei-voice-callprefix-*27*] save

This example assumes that on the PBX, the prefix for enabling the CFO service is set to *27* and that for disabling the CFO service is set to *28*. User A has been assigned the CFO service right.

• Enabling the service

  User A picks up the phone and dials *27*forwarded-to number. An announcement is played, indicating that the service is enabled.

• Disabling the service

  User A picks up the phone and dials *28*. An announcement is played, indicating that the service is disabled.

This example assumes that user A has been assigned the CFO service right and enabled the CFO service that forwards calls to user B's number.

User C places a call to user A. The call is forwarded to user B if user A is offline.

The PBX does not allow users to dial the service prefix to register or cancel the CFC service. An administrator can run the following commands to configure the service rights and call forwarding plan.

Enable the CFC service right for user 6000 and set the forwarded-to number to 6001. Specify the forwarding condition to 09:00-12:00 every Monday when the user does not answer the calls.

<Huawei> system-view 
[Huawei] voice 
[Huawei-voice] pbxuser 6000 
[Huawei-voice-pbxuser-6000] service-right cfc enable 
[Huawei-voice-pbxuser-6000] forward-condition id 1 forwardnum 6001 state noanswer weekly mon
09:00:00 12:00:00 
[Huawei-voice-pbxuser-6000] service cfc condition 1 
[Huawei-voice-pbxuser-6000] save

This example assumes that user A has been assigned the CFC service right and the forwarding condition is 09:00-12:00 every Monday when the user does not answer the calls.

If user C places a call to user A between 09:00-12:00 on Monday, the call is directly forwarded to user B.

A service prefix is required for the PBX to allow terminal users themselves to enable or disable a service.

Two service prefixes are involved: one for enabling the service and the other for disabling the service. Perform the steps described in the following table to configure the service prefixes one by one.

Configure number barring for number 7000, preventing the number from calling intra-office user 7001. Prefix *90* is the prefix for activating number barring.

# Configure the service right. 
<Huawei> system-view 
[Huawei] voice 
[Huawei-voice] pbxuser 7000 
[Huawei-voice-pbxuser-7000] service-right dlc enable 
[Huawei-voice-pbxuser-7000] service-active dlc 
[Huawei-voice-pbxuser-7000] service dlc 7001 
[Huawei-voice-pbxuser-7000] quit 
# Configure a service prefix, for example, *90* for activating call barring. 
[Huawei-voice] callprefix *90* 
[Huawei-voice-callprefix-*90*] prefix *90*
[Huawei-voice-callprefix-*90*] call-type category new-supplementary-management attribute 90 
[Huawei-voice-callprefix-*90*] digit-length 4 32 
[Huawei-voice-callprefix-*90*] save

This example assumes that the prefix for activating number barring is *90* and that for deactivating number barring is *91*.

• Activating number barring: Dial *90*SSSSSS#.
• Deactivating number barring: Dial *91*SSSSSS#.

The variable SSSSSS is the service password, The default username and password are available in AR Router Default Usernames and Passwords (Enterprise Network or Carrier). If you have not obtained the access permission of the document, see Help on the website to find out how to obtain it. You must change the service password when you use the service for the first time. For details about how to change the service password, see Configuring the Service Password.

To enable or disable the number barring service for a user number, you can dial Prefix for enabling or disabling the service + Service password + Called number that has call barring enabled#. You can also dial Prefix for disabling the service + Service password# to disable the service. Note that the AR supports only an at-most-32-digit number. If the number you dial exceeds 32 digits, the AR does not process it.

• Enabling the service

  User A that has been assigned the number barring service right picks up the phone, and dials *88*SSSSSSTN#. An announcement is played, indicating that the service is enabled.

  • The variable TN indicates the number that user A cannot dial.

  • If you cannot hear the system prompts when using the prefix to register service, check whether the service information is correct, for example, whether the format, prefix length, or user number length meet requirements and whether a conflict occurs in the registered service.
• Disabling the service

  User A picks up the phone, and dials *89*SSSSSSTN#. An announcement is played, indicating that the service is disabled.

This example assumes that user A has been assigned the number barring service right.

User A initiates a restricted call. An announcement is played, indicating that the call fails. User A initiates a call that is not restricted. The call is connected.

A user's call-out rights depend on the call-out rights configured during number allocation and the call barring policy enabled by the user. For example, although international and national toll call rights are configured for a user during number allocation, the user still cannot make international toll calls when the user enables international toll call barring.

A service prefix is required for the PBX to allow terminal users themselves to enable or disable a service.

Two service prefixes are involved: one for enabling the service and the other for disabling the service. Perform the steps described in the following table to configure the service prefixes one by one.

Configure call barring for number 7000, preventing the number from making international toll calls. Prefix *98* is the prefix for enabling call barring, and prefix *101* is the prefix for disabling call barring.

# Configure the service right. 
<Huawei> system-view 
[Huawei] voice
[Huawei-voice] pbxuser 7000 
[Huawei-voice-pbxuser-7000] service-right cba enable 
[Huawei-voice-pbxuser-7000] service cba IDD 
[Huawei-voice-pbxuser-7000] quit 
# Configure a service prefix, for example, *98* for enabling call barring. The procedure for configuring other service prefixes is similar.
[Huawei-voice] callprefix *98* 
[Huawei-voice-callprefix-*98*] prefix *98* 
[Huawei-voice-callprefix-*98*] call-type category new-supplementary-management attribute 98 
[Huawei-voice-callprefix-*98*] digit-length 4 32 
[Huawei-voice-callprefix-*98*] save

• Enabling the service
  User A picks up the phone and dials *98*. When hearing the dial tone, user A enters SSSSSSK#. An announcement is played, indicating that the service is successfully enabled.

  • When K is 1, the user cannot make any calls.
  • When K is 2, the user cannot make local calls, national toll calls, or international toll calls.
  • When K is 3, the user cannot make international toll calls.

  The variable SSSSSS is the service password, The default username and password are available in AR Router Default Usernames and Passwords (Enterprise Network or Carrier). If you have not obtained the access permission of the document, see Help on the website to find out how to obtain it. You must change the service password when you use the service for the first time. For details about how to change the service password, see Configuring the Service Password.

• Disabling the service

  User A picks up the phone and dials *101*. When hearing the dial tone, user A enters SSSSSSK#. An announcement is played, indicating that the service is successfully disabled.

Assume that user A has enabled the call barring service.

User A initiates a restricted call. An announcement is played, indicating that the call fails. User A initiates a call that is not restricted. The call is connected.

The password call service restricts the calls that a user can make using a password. The password used in the password call service is the service password. For details about how to change the service password, see Configuring the Service Password.

When the user and the prefix of a call both have the password call service enabled, the user can set up the call only by first dialing the call access code and user password. It is recommended that the password call service be disabled for intra-office prefixes and service prefixes. If not, users with the password call service enabled need to first dial the call access code and user password even before calling intra-office users or before dialing service prefixes. For details about how to disable the password call service for a prefix, see pwdcalllimit disable.

A service prefix is required for the PBX to allow terminal users themselves to enable or disable a service.

Two service prefixes are involved: one for enabling the service and the other for disabling the service. Perform the steps described in the following table to configure the service prefixes one by one.

Configure password call for number 7000. Prefix *95* is the prefix for enabling password call, and prefix *96* is the prefix for disabling password call. The password call access code is 10003.

# Configure the service right. 
<Huawei> system-view 
[Huawei] voice 
[Huawei-voice] pbxuser 7000 
[Huawei-voice-pbxuser-7000] service-right pwcb enable 
[Huawei-voice-pbxuser-7000] service-active pwcb 
[Huawei-voice-pbxuser-7000] quit 
# Configure a service prefix, for example, *95* for enabling password call. The procedure for configuring other service prefixes is similar. 
[Huawei-voice] callprefix *95* 
[Huawei-voice-callprefix-*95*] prefix *95* 
[Huawei-voice-callprefix-*95*] call-type category new-supplementary-management attribute 95 
[Huawei-voice-callprefix-*95*] digit-length 4 32 
[Huawei-voice-callprefix-*95*] pwdcalllimit disable 
[Huawei-voice-callprefix-*95*] save 
# Configure the password call access code. 
[Huawei-voice] callprefix 10003 
[Huawei-voice-callprefix-10003] prefix 10003 
[Huawei-voice-callprefix-10003] call-type category vu-service vu-service-name vupwdcalllimit 
[Huawei-voice-callprefix-10003] pwdcalllimit disable 
[Huawei-voice-callprefix-10003] digit-length 5 32 
[Huawei-voice-callprefix-10003] save

This example assumes that user A has been assigned the password call service right. The administrator has configured the prefix for enabling the service (*95*) and the prefix for disabling the service (*96*) on the PBX.

• Enabling the service

  User A that has been assigned the password call service right picks up the phone, and dials *95*SSSSSS#. An announcement is played, indicating that the service is enabled.

• Disabling the service

  User A picks up the phone, and dials *96*SSSSSS#. An announcement is played, indicating that the service is disabled.

This example assumes that user A has been assigned the password call service right.

User A makes a call to user B. An announcement is played, indicating the call fails.

User A dials the password call access code, and enters the password and user B's number in sequence as prompted. Then the call is connected.

The variable SSSSSS is the service password, The default username and password are available in AR Router Default Usernames and Passwords (Enterprise Network or Carrier). If you have not obtained the access permission of the document, see Help on the website to find out how to obtain it. You must change the service password when you use the service for the first time. For details about how to change the service password, see Configuring the Service Password.

A rule consists of the rule attribute (two options: permit and deny) and the calling number.

A rule set is a collection of blacklist/whitelist rules.

The call right of a number must be permit if the calls from this number want to be routed over a trunk that is bound to a rule set.

This topic assumes that the blacklist/whitelist rule set is configured as follows:

Figure 2-42 shows the networking.

Figure 2-42 Blacklist/Whitelist networking

If the trunk group connecting the PBX to the IP PBX has the preceding blacklist/whitelist rule set configured, user 1000 can call user 7000 and user 7001, user 7000 can call user 1000, but user 7001 cannot call user 1000.

The desired trunk group has been configured. For details, see Configuring Trunk Groups.

Configure blacklist/whitelist rule set 1, where user 7000 is whitelisted for outgoing calls, user 7001 is blacklisted for outgoing calls, and user 1000 is blacklisted for incoming calls. Bind trunk group sipip to blacklist/whitelist rule set 1.

<Huawei> system-view 
[Huawei] voice 
[Huawei-voice] rule-set 1
[Huawei-voice-rule-set-1] rule permit outgoing caller-telno 7000 
[Huawei-voice-rule-set-1] rule deny outgoing caller-telno 7001 
[Huawei-voice-rule-set-1] rule deny incoming caller-telno 1000 
[Huawei-voice-rule-set-1] quit 
[Huawei-voice] trunk-group sipip 
[Huawei-voice-trunkgroup-sipip] use-rule-set 1 
[Huawei-voice-trunkgroup-sipip] save

To prevent a user from placing outgoing calls over a trunk, configure a blacklist/whitelist rule set, set outgoing of the user to deny in the rule set, and bind the rule set to that trunk.

In an anonymous call, the calling number is not displayed to the called party. The RAC service rejects an anonymous call, and plays an announcement to the calling party. The RAC service can be configured to prevent harassment of anonymous calls.

A service prefix is required for the PBX to allow terminal users themselves to enable or disable a service.

Two service prefixes are involved: one for enabling the service and the other for disabling the service. Perform the steps described in the following table to configure the service prefixes one by one.

Configure RAC for number 7000. Prefix *39* is the prefix for enabling RAC, and prefix *40* is the prefix for disabling RAC.

# Configure the service right. 
<Huawei> system-view 
[Huawei] voice 
[Huawei-voice] pbxuser 7000 
[Huawei-voice-pbxuser-7000] service-right rac enable 
[Huawei-voice-pbxuser-7000] service rac 
[Huawei-voice-pbxuser-7000] quit 
# Configure a service prefix, for example, *39* for enabling RAC. The procedure for configuring other service prefixes is similar. 
[Huawei-voice] callprefix *39* 
[Huawei-voice-callprefix-*39*] prefix *39* 
[Huawei-voice-callprefix-*39*] call-type category new-supplementary-management attribute 39 
[Huawei-voice-callprefix-*39*] digit-length 4 32 
[Huawei-voice-callprefix-*39*] save

• Enabling the service

  User A that has been assigned the RAC service right picks up the phone, and dials *39*#. An announcement is played, indicating that the service is enabled.

• Disabling the service

  User A picks up the phone, and dials *40*#. An announcement is played, indicating that the service is disabled.

This example assumes that user A has configured the RAC service.

1. User B makes an anonymous call to user A.
2. User B hears an announcement, indicating that the call is rejected.

A service prefix is required for the PBX to allow terminal users themselves to enable or disable a service.

Two service prefixes are involved: one for enabling the service and the other for disabling the service. Perform the steps described in the following table to configure the service prefixes one by one.

User A has enabled the DND service. The administrator configures service registration prefix (for example, *35*) and service deregistration prefix (for example, *36*) on the PBX.

# Configure the service right.
<Huawei> system-view 
[Huawei] voice 
[Huawei-voice] pbxuser 7000 
[Huawei-voice-pbxuser-7000] service-right dnd enable 
[Huawei-voice-pbxuser-7000] service dnd 
[Huawei-voice-pbxuser-7000] quit
# Configure a service prefix, for example, *35* for enabling the DND service. 
[Huawei-voice] callprefix *35* 
[Huawei-voice-callprefix-*35*] prefix *35* 
[Huawei-voice-callprefix-*35*] call-type category new-supplementary-management attribute 35 
[Huawei-voice-callprefix-*35*] digit-length 4 32 
[Huawei-voice-callprefix-*35*] save

This example assumes that on the PBX, the prefix for enabling the DND service is set to *35* and that for disabling the DND service is set to *36*.

• Enabling the service

  User A that has been assigned the DND service right picks up the phone and dials *35*#. An announcement is played, indicating that the service is enabled.

• Disabling the service

  User A picks up the phone and dials *36*#. An announcement is played, indicating that the service is disabled.

User A has been assigned the DND service right.

Others call user A and hear the DND announcement or the busy tone. User A can still place calls.

A service prefix is required for the PBX to allow terminal users themselves to enable judgment group conditions and to enable and disable a judgment group.

The service prefixes include those used to enable/disable the SCA number, time, and day and to query/delete/enable/disable a judgment group.

Perform the steps described in the following table to configure the service prefixes one by one.

Enable the SCA service right for user 6000. Enable the system to accept calls for user 6000 when either of the following conditions are met:

• The calling number is 6001 every Tuesday to Friday.
• 10:00-17:00 every day from 2013-01-01 to 2014-12-31.

On the PBX, set a service prefix to *+Call attribute of the service prefix+*. For example, set the prefix used to enable an SCA number to *59*.

# Configure the service right and judgment group. 
<Huawei> system-view 
[Huawei] voice 
[Huawei-voice] pbxuser 6000 
[Huawei-voice-pbxuser-6000] service-right sca enable 
[Huawei-voice-pbxuser-6000] service sca judgegrp 1 condition caller-telno 6001 time-repeat weekly tue fri active enable 
[Huawei-voice-pbxuser-6000] service sca judgegrp 2 condition time-period from 2013-01-01 to 2014-12-31 time-repeat daily 10:00:00 17:00:00 active enable 
[Huawei-voice-pbxuser-6000] quit 
# Configure a service prefix, for example, *59* for enabling an SCA number. 
[Huawei-voice] callprefix *59* 
[Huawei-voice-callprefix-*59*] prefix *59* 
[Huawei-voice-callprefix-*59*] call-type category new-supplementary-management attribute 59 
[Huawei-voice-callprefix-*59*] digit-length 4 32 
[Huawei-voice-callprefix-*59*] save

This example assumes that on the PBX, a service prefix is set to *+Call attribute of the service prefix+*, for example, the prefix used to enable an SCA number being set to *59*.

User A has been assigned the SCA service right.

If you cannot hear the system prompts when using the prefix to operate service, check whether the service information is correct, for example, whether the format, prefix length, or user number length meet requirements and whether a conflict occurs in the service.

User A can enable the judgment group conditions in the following ways:

• Adding an SCA number to a judgment group: User A picks up the phone and dials *59*+2-digit group ID+Accepted user number#. For example, if user A dials *59*0128971799#, accepted number 28971799 is added to judgment group 1.
• Adding an SCA time period to a judgment group: User A picks up the phone and dials *61*+2-digit group ID+Accepted time period#. For example, if user A dials *61*0208301030#, accepted time period 08:30-10:30 everyday is added to judgment group 2.
• Adding SCA days to a judgment group: User A picks up the phone and dials *63*+2-digit group ID+Accepted days in a week#. The value for accepted days in a week is a 7-digit binary number, with the first digit being Monday and last digit being Sunday. For example, if user A dials *63*030111110#, accepted days Tuesday to Saturday are added to judgment group 3.

• A judgment group can contain one condition, or a combination of number and time or number and day.
• Time and day are mutually exclusive. If the time and day conditions are both enabled, the condition that is enabled later takes effect.

User A can disable the judgment group conditions in the following ways:

• Disabling the number condition from a judgment group: User A picks up the phone and dials *60*+2-digit group ID#, for example, *60*01#.
• Disabling the time condition from a judgment group: User A picks up the phone and dials *62*+2-digit group ID#, for example, *62*02#.
• Disabling the day condition from a judgment group: User A picks up the phone and dials *64*+2-digit group ID#, for example, *64*03#.

User A can enable one or more judgment groups in the following ways:

• Enabling a judgment group: User A picks up the phone and dials *65*+2-digit group ID#, for example, *65*01#.
• Enabling all judgment groups: User A picks up the phone and dials *65*#.

User A can disable one or more judgment groups in the following ways:

• Disabling a judgment group: User A picks up the phone and dials *66*+2-digit group ID#, for example, *66*01#.
• Disabling all judgment groups: User A picks up the phone and dials *66*#.

User A can verify a judgment group or delete one or more judgment groups in the following ways:

• Verifying a judgment group: User A picks up the phone and dials *67*+2-digit group ID#, for example, *67*03#. If the judgment group is enabled, an announcement is played, indicating that the judgment group is enabled. Otherwise, an announcement is displayed, indicating a failure to enable the judgment group.
• Deleting a judgment group: User A picks up the phone and dials *68*+2-digit group ID#, for example, *68*03#.
• Deleting all judgment groups: User A picks up the phone and dials *68*#.

This example assumes that user A has been assigned the SCA service right and enabled a judgment group with SCA conditions specified.

User B places a call to user A. If the SCA conditions are met, the PBX connects the call to user A. Otherwise, the PBX releases the call.

A service prefix is required for the PBX to allow terminal users themselves to enable judgment group conditions and to enable and disable a judgment group.

The service prefixes include those used to enable/disable the SCR number, time, and day and to query/delete/enable/disable a judgment group.

Perform the steps described in the following table to configure the service prefixes one by one.

Enable the SCR service right for user 6000. Enable the system to reject calls for user 6000 when either of the following conditions are met:

• The calling number is 6001 every Monday and Tuesday.
• 09:00-10:00 every day from 2013-01-01 to 2014-12-31.

On the PBX, set a service prefix to *+Call attribute of the service prefix+*. For example, set the prefix used to enable an SCR number to *49*.

# Configure the service right and judgment group.
<Huawei> system-view 
[Huawei] voice  
[Huawei-voice] pbxuser 6000 
[Huawei-voice-pbxuser-6000] service-right rcs enable 
[Huawei-voice-pbxuser-6000] service rcs judgegrp 1 condition caller-telno 6001 time-repeat weekly mon tue active enable 
[Huawei-voice-pbxuser-6000] service rcs judgegrp 2 condition time-period from 2013-01-01 to 2014-12-31 time-repeat daily 09:00:00 10:00:00 active enable 
[Huawei-voice-pbxuser-6000] quit 
# Configure a service prefix, for example, *49* for enabling an SCR number. 
[Huawei-voice] callprefix *49* 
[Huawei-voice-callprefix-*49*] prefix *49* 
[Huawei-voice-callprefix-*49*] call-type category new-supplementary-management attribute 49 
[Huawei-voice-callprefix-*49*] digit-length 4 32 
[Huawei-voice-callprefix-*49*] save

This example assumes that on the PBX, a service prefix is set to *+Call attribute of the service prefix+*, for example, the prefix used to enable an SCR number being set to *49*.

User A has been assigned the SCR service right.

If the system prompts an error when you use the service prefixes, check whether the registration information is correct, for example, the format and prefix length. In addition, check whether a conflict occurs in the service.

User A can enable the judgment group conditions in the following ways:

• Adding an SCR number to a judgment group: User A picks up the phone and dials *49*+2-digit group ID+Rejected user number#. For example, if user A dials *49*0128971799#, rejected number 28971799 is added to judgment group 1.
• Adding an SCR time period to a judgment group: User A picks up the phone and dials *51*+2-digit group ID+Rejected time period#. For example, if user A dials *51*0208301030#, rejected time period 08:30-10:30 everyday is added to judgment group 2.
• Adding SCR days to a judgment group: User A picks up the phone and dials *53*+2-digit group ID+Rejected days in a week#. The value for rejected days in a week is a 7-digit binary number, with the first digit being Monday and last digit being Sunday. For example, if user A dials *53*030111110#, rejected days Tuesday to Saturday are added to judgment group 3.

• A judgment group can contain one condition, or a combination of number and time or number and day.
• Time and day are mutually exclusive. If the time and day conditions are both enabled, the condition that is enabled later takes effect.

User A can disable the judgment group conditions in the following ways:

• Disabling the number condition from a judgment group: User A picks up the phone and dials *50*+2-digit group ID#, for example, *50*01#.
• Disabling the time condition from a judgment group: User A picks up the phone and dials *52*+2-digit group ID#, for example, *52*02#.
• Disabling the day condition from a judgment group: User A picks up the phone and dials *54*+2-digit group ID#, for example, *54*03#.

User A can enable one or more judgment groups in the following ways:

• Enabling a judgment group: User A picks up the phone and dials *55*+2-digit group ID#, for example, *55*01#.
• Enabling all judgment groups: User A picks up the phone and dials *55*#.

User A can disable one or more judgment groups in the following ways:

• Disabling a judgment group: User A picks up the phone and dials *56*+2-digit group ID#, for example, *56*01#.
• Disabling all judgment groups: User A picks up the phone and dials *56*#.

User A can verify a judgment group or delete one or more judgment groups in the following ways:

• Verifying a judgment group: User A picks up the phone and dials *57*+2-digit group ID#, for example, *57*03#. If the judgment group is enabled, an announcement is played, indicating that the judgment group is enabled. Otherwise, an announcement is displayed, indicating a failure to enable the judgment group.
• Deleting a judgment group: User A picks up the phone and dials *58*+2-digit group ID#, for example, *58*03#.
• Deleting all judgment groups: User A picks up the phone and dials *58*#.

This example assumes that user A has been assigned the SCR service right and enabled a judgment group with SCR conditions specified.

User B places a call to user A. If the SCR conditions are met, the PBX releases the call. Otherwise, the PBX sends the call request to user A.

A service prefix is required for the PBX to allow terminal users themselves to enable or disable a service.

Enable CBB service right for number 7000. Prefix *104* is the prefix for disabling the CBB service.

# Configure the service right.
<Huawei> system-view 
[Huawei] voice  
[Huawei-voice] pbxuser 7000 
[Huawei-voice-pbxuser-7000] service-right ccbs enable 
[Huawei-voice-pbxuser-7000] quit 
# Configure a service prefix. 
[Huawei-voice] callprefix *104* 
[Huawei-voice-callprefix-*104*] prefix *104* 
[Huawei-voice-callprefix-*104*] call-type category new-supplementary-management attribute 104 
[Huawei-voice-callprefix-*104*] digit-length 5 32 
[Huawei-voice-callprefix-*104*] save

This example assumes that user A has been assigned the CBB service right. The administrator has configured the prefix for disabling the service (*104*) on the PBX.

• Enabling the service

  1. User A makes a call to an enterprise user, and the enterprise user is busy.
  2. User A hears an announcement, prompting the user to enable the CBB service.
  3. User A dials 1 to enable the service.

• Disabling the service

  User A picks up the phone, and dials *104*. An announcement is played, indicating that the service is disabled.

  If call back is successfully performed after the CBB service is enabled, the service is automatically disabled.

• The called party is an intra-office user.

  After a user enables the CBB service, the system monitors the status of the called party. When detecting that the called party is idle, the system makes a call to the called party, and then makes a call to the calling party when the called party picks up the phone. If the call fails to be connected, the call attempt process is similar to that where the called party is an outer-office user.

• The called party is an outer-office user.

  After a user enables the CBB service, the system makes a call to the called party at the end of the first call attempt interval, and then makes a call to the calling party when the called party picks up the phone. If the call is successfully connected, the system stops initiating call attempts. If the call fails to be connected, the system initiates a call attempt at the end of the next call attempt interval. When the number of call attempts reaches the maximum or the total time period reaches the maximum, the system stops initiating call attempts.

The call back control points are as follows:

• 68: call attempt time period
• 69: maximum number of call attempts
• 70: call attempt interval

You can run the pbx number-parameter command to modify call back time control points.

A service prefix is required for the PBX to allow terminal users themselves to enable or disable a service.

Enable ACB service right for number 7000. Prefix *107* is the prefix for disabling the ACB service.

# Configure the service right.
<Huawei> system-view 
[Huawei] voice  
[Huawei-voice] pbxuser 7000 
[Huawei-voice-pbxuser-7000] service-right ccnr enable 
[Huawei-voice-pbxuser-7000] quit 
# Configure a service prefix. 
[Huawei-voice] callprefix *107* 
[Huawei-voice-callprefix-*107*] prefix *107* 
[Huawei-voice-callprefix-*107*] call-type category new-supplementary-management attribute 107 
[Huawei-voice-callprefix-*107*] digit-length 5 32 
[Huawei-voice-callprefix-*107*] save

This example assumes that user A has been assigned the ACB service right. The administrator has configured the prefix for disabling the service (*104*) on the PBX.

• Enabling the service

  1. User A makes a call to an enterprise user, and the enterprise user does not answer the call.
  2. User A hears an announcement, prompting the user to enable the ACB service.
  3. User A dials 1 to enable the service.

• Disabling the service

  User A picks up the phone, and dials *107*. An announcement is played, indicating that the service is disabled.

  If call back is successfully performed after the ACB service is enabled, the service is automatically disabled.

After a user has the ACB service enabled, the system calls the called party when the call attempt interval expires, and the system calls the calling party after the called party goes offhook. If the call attempt fails, the system initiates another call attempt when the next call attempt interval expires. If the call attempt is successful, the system does not initiate a call attempt again; but if the call attempt still fails, the system initiates another call attempt when the next call attempt interval expires. When the maximum number of call attempts or the maximum call attempt duration is reached, the system no longer initiates another call attempt even if the previous call attempt fails.

The call back control points are as follows:

• 68: call attempt time period
• 69: maximum number of call attempts
• 70: call attempt interval

You can run the pbx number-parameter command to modify call back time control points.

Configure the co-group pickup service rights for user 7000 and add user 7000 to group aaa. Add user 7001 to group aaa. Set the co-group pickup prefix to *171*.

# Configure the co-group pickup service. 
<Huawei> system-view 
[Huawei] voice 
[Huawei-voice] pbxuser 7000 
[Huawei-voice-pbxuser-7000] service-right pickup-in-group enable 
[Huawei-voice-pbxuser-7000] pickupgroup-name aaa 
[Huawei-voice-pbxuser-7000] quit 
[Huawei-voice] pbxuser 7001 
[Huawei-voice-pbxuser-7001] pickupgroup-name aaa 
[Huawei-voice-pbxuser-7001] quit 
# Configure a service prefix. 
[Huawei-voice] callprefix *171* 
[Huawei-voice-callprefix-*171*] prefix *171* 
[Huawei-voice-callprefix-*171*] call-type category supplementary-service attribute 171 
[Huawei-voice-callprefix-*171*] digit-length 5 32 
[Huawei-voice-callprefix-*171*] save

This example assumes that user A has been assigned the co-group pickup service right, user A and user B are intra-office users, user C is an external user, and the co-group pickup prefix is *171*.

1. User C dials user B's number, and user B's phone rings.

2. User A picks up his or her own phone and dials *171*. User B's phone stops ringing.

3. User A talks with user C.

   If multiple phones in the same pickup group are ringing, the system automatically selects the phone that rings first for pickup.

Configure the designated pickup service rights for user 7000. Add users 7000 and 7001 to the designated pickup group aaa. Set the designated pickup prefix to *172*.

# Configure the designated pickup service.
<Huawei> system-view 
[Huawei] voice  
[Huawei-voice] pbxuser 7000 
[Huawei-voice-pbxuser-7000] service-right  pickup-special enable 
[Huawei-voice-pbxuser-7000] pickupgroup-name aaa 
[Huawei-voice-pbxuser-7000] quit 
[Huawei-voice] pbxuser 7001 
[Huawei-voice-pbxuser-7001] pickupgroup-name aaa 
[Huawei-voice-pbxuser-7001] quit 
# Configure a service prefix. 
[Huawei-voice] callprefix *172* 
[Huawei-voice-callprefix-*172*] prefix *172* 
[Huawei-voice-callprefix-*172*] call-type category supplementary-service attribute 172 
[Huawei-voice-callprefix-*172*] digit-length 5 32 
[Huawei-voice-callprefix-*172*] save

This example assumes that user A has been assigned the designated pickup service right and the designated pickup prefix is set to *172*.

1. User C dials user B's number, and user B's phone rings.

2. User A picks up his or her own phone and dials *172*TN#. User B's phone stops ringing. The variable TN indicates user B's number.

3. User A talks with user C.

A service prefix is required for the PBX to allow terminal users themselves to enable or disable a service.

Two service prefixes are involved: one for enabling the service and the other for disabling the service. Perform the steps described in the following table to configure the service prefixes one by one.

Configure the secretary service for number 7000. Prefix *72* is the prefix for enabling the secretary service, and prefix *73*# is the prefix for disabling the secretary service.

# Configure user 7000 as the manager and user 7001 as the secretary.
<Huawei> system-view 
[Huawei] voice 
[Huawei-voice] pbxuser 7000 
[Huawei-voice-pbxuser-7000] service-right scr enable 
[Huawei-voice-pbxuser-7000] service scr telno 7001 
[Huawei-voice-pbxuser-7000] quit 
# Configure a service prefix, for example, *72* for enabling the secretary service. The procedure for configuring other service prefixes is similar. 
[Huawei-voice] callprefix *72* 
[Huawei-voice-callprefix-*72*] prefix *72* 
[Huawei-voice-callprefix-*72*] call-type category new-supplementary-management attribute 72 
[Huawei-voice-callprefix-*72*] digit-length 4 32 
[Huawei-voice-callprefix-*72*] save

This example assumes that users A and B have been assigned the secretary service right. The administrator has configured the prefix for enabling the service (*72*) and the prefix for disabling the service (*73*) on the PBX.

• Enabling the service

  Assumes that user A is a manager who has been assigned the secretary service right, and user A's number is DN. User B has been assigned the secretary rights, and user B's number is TN.

  If user A wants to register user B as the secretary, user A can pick the phone and dial *72*TN#. An announcement is played, indicating that the service is enabled.

  If user B wants to register user A as the manager, user B can pick the phone and dial *72*DN*SSSSSS#. An announcement is played, indicating that the service is enabled.

  The variable SSSSSS is the service password, The default username and password are available in AR Router Default Usernames and Passwords (Enterprise Network or Carrier). If you have not obtained the access permission of the document, see Help on the website to find out how to obtain it. You must change the service password when you use the service for the first time. For details about how to change the service password, see Configuring the Service Password.

• Disabling the service

  • Manager A picks up the phone, and dials *73*#. An announcement is played, indicating that the service is disabled.
  • Secretary B picks up the phone, and dials *73*TN#. An announcement is played, indicating that the service is disabled. In the dialed number, TN is manager A's number.

• If secretary B uses an analog phone, the process of using the secretary service is as follows:
  1. User C makes a call to manager A. Secretary B's phone rings.
  2. Secretary B picks up the phone, talks with user C, and presses the hookflash key.

     User C hears the waiting tone. If secretary B does not perform any operations within 10 seconds, secretary B hears the busy tone.

     • If secretary B presses the hookflash key within 5 seconds after hearing the busy tone, the conversation with user C resumes.
     • If secretary B does not perform any operations within 5 seconds after hearing the busy tone, the system resumes the conversation between secretary B and user C automatically.
  3. Secretary B dials manager A's number.

     If secretary B presses the hookflash key before manager A picks up the phone, the connection with manager A is released and the conversation with user C resumes.

  4. Manager A picks up the phone and talks with secretary B.
     • If manager A hangs up the phone first and secretary B does not perform any operations within 5 seconds after hearing the busy tone, the system resumes the conversation between secretary B and user C automatically.
     • If secretary B hangs up the phone first, manager A talks with user C.
• If secretary B uses an IP phone, the process of using the secretary service is as follows:

  The following assumes that secretary B uses eSpace 7950.

  1. User C makes a call to manager A. Secretary B's phone rings. Secretary B picks up the phone and talks with user C. This scenario assumes that the conversation occupies line 1.
  2. Secretary B presses Transfer and dials manager A's number.

     The call with user C is held, and user C hears the waiting tone. If secretary B presses the key corresponding to the line on which secretary B and user C are having a conversation (line 1 in this example) twice, the connection with manager A is released and the conversation with user C resumes.

  3. Manager A picks up the phone and talks with secretary B.
     • If manager A hangs up, the message "call hold" is displayed on secretary B's phone. If secretary B presses the key corresponding to the line on which secretary B and user C are having a conversation (line 1 in this example), the conversation with user C resumes.
     • If secretary B presses Done, secretary B's phone automatically hangs up and manager A talks with user C.

For the service of one manager with multiple secretaries, one manager with a maximum of six secretaries can be configured. For the service of multiple managers with multiple secretaries, a maximum of four managers with two secretaries can be configured. These two types of services have the same configuration principles. This topic uses one manager with two secretaries as an example. Figure 2-43 shows the networking.

Figure 2-43 Network for the advanced secretary service

After shared lines are configured for the manager and secretaries, all the phones with shared numbers, including the manager's and secretaries' phones, ring when a call destined for the manager's shared number comes in. The manager and the secretaries can learn about each other's status over a shared line. For example, the manager can know whether a secretary is busy or idle over the shared line.

Private line number:

• Manager A: 7102
• Secretary B1: 7201
• Secretary B2: 7301

Only one number is required for multiple shared lines of the manager. Multiple equipment IDs (EIDs) share this number.

<Huawei> system-view 
[Huawei] voice 
[Huawei-voice] ssca-group pbxuser 7100 
[Huawei-voice-ssca-group-7100] bind main-eid 7100 shared-eid 7200 
[Huawei-voice-ssca-group-7100] bind main-eid7101 shared-eid 7300
[Huawei-voice-ssca-group-7100] config-dn 7100 private-dn 7102 
[Huawei-voice-ssca-group-7100] config-dn 7200 private-dn 7201 
[Huawei-voice-ssca-group-7100] config-dn 7300 private-dn 7301 
[Huawei-voice-ssca-group-7100] config-dn 7100 auto-answer enable 
[Huawei-voice-ssca-group-7100] config-dn 7100 alerting-silence enable  
[Huawei-voice-ssca-group-7100] line-share-mode all 
[Huawei-voice-ssca-group-7100] save

The manager's account is configured in the same way as the secretary's account on an IP phone. The following uses the manager's account as an example to describe the configuration on the eSpace 7950 IP phone. The configuration varies depending on the IP phone model. For details, see the Administrator Guide of the corresponding model.

• The following settings are the special settings for the advanced secretary service. For common settings, see the Administrator Guide of the corresponding IP phone.
• The accounts to configure include the manager's and secretary's shared line numbers and private line numbers.
• For details about the shared line settings, see Table 2-9.

The following uses the eSpace 7950 IP phone as an example to describe how to use the advanced secretary service, as shown in Figure 2-44.

Figure 2-44 Advanced secretary service

• • Scenario : The manager does not need to answer the call.
  • Scenario : The secretary needs to ask the manager for permission, but the manager does not need to answer the call.
  • Scenario : The manager needs to answer the call.

A service prefix is required for the PBX to allow terminal users themselves to enable or disable a service.

Two service prefixes are involved: one for enabling the service and the other for disabling the service. Perform the steps described in the following table to configure the service prefixes one by one.

Enable the hotline service right for user 7000 and set the hotline number to 6000. Set the prefix for enabling the delay hotline service to *111* and that for disabling the delay hotline service to *112*.

# Configure the delay hotline service.
<Huawei> system-view 
[Huawei] voice  
[Huawei-voice] pbxuser 7000 
[Huawei-voice-pbxuser-7000] service-right hotline enable 
[Huawei-voice-pbxuser-7000] service hotline delay hotline-telno 6000 
[Huawei-voice-pbxuser-7000] quit
# Configure a service prefix, for example, *111* for enabling the delay hotline service.
[Huawei-voice] callprefix *111* 
[Huawei-voice-callprefix-*111*] prefix *111* 
[Huawei-voice-callprefix-*111*] call-type category new-supplementary-management attribute 111 
[Huawei-voice-callprefix-*111*] digit-length 5 32 
[Huawei-voice-callprefix-*111*] save

• Enabling the service

  User A picks up the phone and dials *111*TN#. An announcement is played, indicating that the service is enabled.

  • User A has been assigned the hotline service right.

  • The variable TN is the hotline number (either an intra-office number or external number), which is the number of user B.

• Disabling the service

  User A picks up the phone and dials *112*#. An announcement is played, indicating that the service is disabled.

This example assumes that user A has been assigned the delay hotline service right.

User A picks up the phone and waits for 5s. A call is initiated to user B automatically. User A hears the ringback tone, and can talk with user B when user B picks up the phone.

A service prefix is required for the PBX to allow terminal users themselves to enable or disable a service.

Two service prefixes are involved: one for enabling the service and the other for disabling the service. Perform the steps described in the following table to configure the service prefixes one by one.