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Cisco CUCM integration with Huawei PBX eSpace U19xx

Publication Date:  2018-03-14 Views:  138 Downloads:  0
Issue Description



The scenario of interconnecting the unified gateway
with Cisco CUCM is applicable when enterprise subscribers who already use Cisco
CUSC call manager. Through interconnection between the unified
gateway
and the CUCM, the subscribers under original PBXs remain
unchanged, and the VoIP service and other supplementary services can be
provided. The U1960 is used as an example.

Background

This topic describes the IPBX eSpace U1960 and the Cisco CUCM interworking scenario.
IP PBX

The IP private branch exchange (IPBX) uses the IP protocol to provide
internal call services.

Description

The IPBX interworking allows the IP users to reduce costs and enjoy more services. The interworking between the unified gateway and IPBX provides the voice over IP (VoIP) and other supplementary services for original traditional PBX users and IPPBX users.


NOTE:

Original PBX is short for original traditional PBX in the following part of this document.



2. Configuration Scenario

This topic describes the configuration objective, network, and data plan for
the traditional IPBX interworking scenario.

Target

You can configure scenarios based on customers' requirements. The scenario configuration listed in Table 1 is used as examples in this topic.
    
 


 

Table 1 Configuration Objective


 

 

Intra-office number segment


 

 

·           Original IPBX number   segment: 5000-5019


 

·           New number segment:   7000-7019


 

 

Long number segment


 

 

·           Original PBX number   segment: 83785000-83785009, as the long numbers of 5000 to 5009. New PBX
  number segment: 68905000-68905009


      

·           New number segment:   68907000-68907009, as the long numbers of 7000 to 7009 The last  four digits of a long number forms the short number. Users without a long number are non-Direct Dialing In (DID) users.


 

 

Other numbers


 
     

·           Original main number:   83785888 New main number: 68905888


 

·           New main number: 68907888


 

 

Dialing mode


 

 

·           Intra-office: The calling party makes a call by dialing a 4-digit short number. The short number of the calling party is displayed to the called party.


 

·           Outgoing: Make an outgoing call by dialing the called number without a prefix. For the DID user, the long number of the calling party is displayed. For the non-DID user, the new main number is displayed.


 

·           Incoming: The calling party dials main number + extension number to call a non-DID user, and dials the long number to call a DID user.


 

NOTE:          

The newly added PBX and unified gateway users make outgoing calls through the network of carrier B. For the new DID users, the long  number of the calling party is displayed. For the non-DID user, the new main number is displayed.


 

 

Trunk type


 

 

·           Interconnection with carrier A: The PRA trunk is used.


 

·          Interconnection with carrier B: The PRA trunk is used.


 

·           Interconnection with cisco  CUCM IPBX: The SIP trunk is used.

       

In this example, the PRA and SIP trunk are used. The R2, SS7 (including ISUP and TUP), and QSIG trunks can also be used. In actual scenarios, negotiate with users and carriers to determine the trunk type.


 


Networking
Figure 1 shows the typical interworking scenario of the Cisco CUCM.


Figure 1 Typical networking for interconnecting the unified gateway with traditional PBXs

 

·         All calls of users are dialed in or out through the network of carrier B, and make an outgoing call by dialing the called number without a prefix. Calls are re-routed upon routing failure. When carrier B's routing fails, carrier A's network route is used to route calls.

·         unified gateway users can directly dial the short numbers and long numbers under the original PBX.

Data Planning

Before configuration, you need to plan the data based on the networking and user requirements.

1.      Plan the user numbers   
  


  

Table 2 Plan the user numbers


  

     

Short    Number Segment


  

  

Long    Number Segment


  

  

Associated    Device


  

  

Remarks


  

 

5000–5009


 

 

83785000–83785009


 

 

Cisco CUCM


 

 

Original DID users


 

 

5010–5019


 

 

-


 

 

Cisco CUCM


 

 

Original non-DID user


 

 

7000–7009


 

 

68907000–68907009


 

 

unified gateway


 

 

New DID users


 

 

7010–7019


 

 

-


 

 

unified gateway


 

 

New non-DID user


 

 

-


 

 

83785888


 

 

unified gateway


 

 

Original main number


 

 

-


 

 

68907888


 

 

unified  gateway


 

 

New main number


 


2.      Plan the IP address
 


                 Table 3 Plan the IP address
  

  

         NE  


  

  

             IP    Address


  

  

          Subnet   Mask


  

  

         Gateway IP Address


  

      

 

  unified   gateway


    

192.168.10.10
 


 

           255.255.255.0


 

 

        192.168.10.1


 

 

       NMS


 

 

192.168.10.11 


 

 

           255.255.255.0


 

 

192.168.10.1


 

 

Cisco CUCM


 

 

192.168.10.12


 

 

255.255.255.0


 

 

192.168.10.1


 



3.      Plan the trunk data

Based on the installation of boards and E1/T1 cables, plan the trunk data, as described in Table 4.



  

Table 4 PRA trunk data planning


  

  

E1/T1    Slot Number


  

  

E1/T1    Port Number


  

  

Office    Direction Selection Code


  

  

Office    Direction


  

  

Peer    Office


  

 

2


 

 

0


 

 

0


 

 

0


 

 

Carrier B


 

 

2


 

 

1


 

 

1


 

 

1


 

 

Carrier A


 


4.      Plan the prefix



  

Table 5 Plan the prefix


  

  

Prefix


  

  

Prefix    Type


  

  

Office Direction Selection Code


  

  

Called Number hange


  

  

Calling  Number Change


  

  

Remarks


  

 

68907


 

 

Intra-office prefix


 

 

-


 

 

-


 

 

-


 

 

-


 

 

0


 

 

National toll call
  prefix


 

 

0


 

 

-


 

 

·           Index 1 means that the entire number is changed to the new main number.


 

·           Use the long number and
  short number.


 

 

Dial without a prefix
  to make outgoing calls to the network of carrier B.


 

 

00


 

 

International toll call
  prefix


 

 

0


 

 

-


 

 

·           Index 1 means that the
  entire number is changed to the new main number.


 

·           Use the long number and
  short number.


 

 

Dial without a prefix
  to make outgoing calls to the network of carrier B.


 

 

1-9


 

 

Local call prefix


 

 

0


 

 

-


 

 

·           Index 1 means that the
  entire number is changed to the new main number.


      

·           Use the long number and
  short number.


 

 

Dial without a prefix
  to make outgoing calls to the network of carrier B.


 

 

8378


 

 

Local call prefix


 

 

2


 

 

-


 

 

-


 

 

Make an outbound call
  to cisco CUCM.


 

 

022


 

 

Local call prefix


 

 

2


 

 

-


 

 

-


 

 

Make an outbound call
  to cisco CUCM.


 

 

68905


 

 

Local call prefix


 

 

2


 

 

-


 

 

-


 

 

Make an outbound call
  to cisco CUCM.


 



Solution
A-Huawei eSpace U1960 Configuration
 

1. Configuring Boards

This topic describes how to configure boards in the web management system based on the actual hardware configuration. After the boards are configured, you can perform operations such as number allocation and trunk configuration.

Procedure

Log in to the unified gateway web management system.

Choose System > Board Configuration.

Click the slots and select boards from the displayed drop-down list box.

NOTE:

The board type that you select must be the same as that in the slot on the unified gateway.

Click OK.

Click Data Save in the upper right corner of the web management system.

NOTICE:

The unsaved configurations will be deleted after the device is restarted.

2. Configure User Numbers

This topic describes how to configure SIP user numbers based on the data plan.

Procedure

    Log in to the unified gateway web management system.

    Add 10 DID users whose numbers start from 7000 (long number: 68907000) in a batch.

    Choose User > SIP User.

    Click Create, and set the relevant parameters, as shown in Figure 1.

    Figure 1 Configuring a DID user

     


    Click OK.

    Add 10 non-DID users whose numbers start from 7010 in a batch.

    Choose User > SIP User.

    Click Create, and set the relevant parameters, as shown in Figure 2.

    Figure 2 Configuring a non-DID user number

     



    Click OK.

    Click Data Save in the upper right corner of the web management system.

    NOTICE:

    The unsaved configurations will be deleted after the device is restarted.

     

     

3. Configuring Trunks

This topic describes how to configure the office routes, prefixes, and trunks based on the data plan.


Procedure

Log in to the unified gateway web management system.

Configure number change indexes.

Add the following number change indexes:

Add number change index 0, which is used to delete the first digit of the called number when an outgoing call is made.

Add number change index 1, which is used to change the calling number of a non-DID user to the switchboard number 68907888 when an outgoing call is made.

Add number change index 2, which is used to delete the first three digits of the called number when an outgoing call is made.

Add number change index 3, which is used to configure the calling number change for re-routing, specifically, changing the calling numbers to the main number of the PBX.

To add a number change index, proceed as follows:

Choose Trunk > Office Route Configuration > Number Change Index.

Click Create, and set the relevant parameters, as shown in Figure 1.

Figure 1  Configuring number change index 0

 


Click OK.


Click Create, and configure number change index 1, as shown in Figure 2.

Figure 2  Configuring number change index 1

 


Click Create, and configure number change index 2, as shown in Figure 3.

Figure 3 Configuring number change index 2

 


Click Create, and configure number change index 3, as shown in Figure 4.

Figure 4 Configuring number change index 3

 


Configure office routes and office route selection codes.


In this scenario, the office routes and office route selection codes are the same and planned as follows:


Connection to carrier B's network: 0. Whether to select a new route based on the standby office route selection code 1 corresponding to the failure processing index if the call fails to be routed according to the office route selection code 0.

Connection to carrier A's network: 1.

Connection to the traditional PBX: 2.

To configure office routes and office route selection codes, proceed as follows:

Choose Trunk > Office Route Configuration > Office Route Selection Code.

Click Create, and configure office route selection code 1, as shown in Figure 5.

Figure 5 Configuring the office route selection code to 1

 


Click Create, and configure office route selection code 2, as shown in Figure 6.


Figure 6 Configuring the office route selection code to 2

 



Choose Trunk > Office Route Configuration > Failure Processing Index.

Click Create, and set the relevant parameters, as shown in Figure 7.

Figure 7 Configuring failure processing index 0

 


Click OK.

Choose Trunk > Office Route Configuration > Office Route Selection Code.

Click Create, and set the relevant parameters, as shown in Figure 8.

Figure 8 Configuring the office route selection code to 0

 



Click OK.

Choose Trunk > Office Route Configuration > Office Route.

Click Create, and set the relevant parameters, as shown in Figure 9.

Figure 9 Setting the office route number to 0

 


Click OK.

Click Create, and configure office route 1, as shown in Figure 10.

Figure 10 Setting the office route number to 1

 


Click Create, and configure office route 2, as shown in Figure 11.


Figure 11 Setting the office route number to 2






Configure the number mapping.


Map numbers 68905000-83785009 to original user numbers 83785000-83785009 in the PBX.

Map the number 68905888 to the cisco CUCM switchboard number 83785888.

Map numbers 0225000-0225019 to the cisco CUCM user numbers 5000-5019. When unified gateway users directly dial the short numbers under the original PBX, the prefix 022 is added to the short numbers through the number mapping.

Choose Trunk > Office Route Configuration > Number mapping.

Click Create, and set the relevant parameters, as shown in Figure 12.

Figure 12 Configuring the number mapping

 


Click OK.


Repeat step 4.a to step 4.c to configure other number mappings. Set the relevant parameters by referring to Table 1.



Table 1 Number mapping parameters


Internal Number


External Number


83785000-83785009


68905000-68905009


83785888


68905888


0225000-0225019


5010-5019

 



Configure intra-office prefixes.

When an intra-office subscriber or an external subscriber dials an intra-office number, the unified gateway analyzes whether the called party is an intra-office subscriber based on this prefix.

68907: Long number analysis prefix, based on which the unified gateway analyzes whether the called party is an intra-office subscriber when an intra-office or external subscriber dials the long number of an intra-office subscriber.

Choose Trunk > Prefix Configuration.

Click Create, and set the relevant parameters, as shown in Figure 13.

Figure 13 Configure prefix 68907




Click OK.

Configure outgoing prefixes are routed out from the network of carrier B.

Configure the outgoing prefixes 0 to 9, All outgoing calls are routed out from the network of carrier B through unified gateway. Make an outgoing call by dialing the called number without a prefix. The office direction selection code is 0. For DID subscribers, the long number is displayed; for non-DID subscribers, the main number is displayed.

Configure the outgoing prefixes 1 to 9, All outgoing calls are routed out from the network of carrier B through unified gateway. Make an outgoing call by dialing the called number without a prefix. The office direction selection code is 0. For DID subscribers, the long number is displayed; for non-DID subscribers, the main number is displayed.

The short numbers under the PBX (start with 5) or unified gateway (start with 7) may be the same as the first several digits of the local number, so prefix 5 and 7 must be configured as the intra-office or local call prefix. The office route selection code corresponding to the prefix is 0 and the corresponding office route is that of the unified gateway. The intra-office and inter-office numbers sent by the PBX are processed by the unified gateway.

Configure outgoing prefix 5 to enable unified gateway subscribers to call PBX subscribers' short numbers. PBX subscribers can make outgoing calls that are routed out from the network of carrier B through unified gateway.

Configure outgoing prefix 7 to enable the unified gateway subscribers to call each others' 4-digit short number and make prefix-free outgoing calls.

Choose Trunk > Prefix Configuration.

Click Create, and set the relevant parameters, as shown in Figure 14.

Figure 14 Configure prefix 0



Click OK.

Repeat step 6.a to step 6.c to add international toll call prefix 00 and local prefixes 1 to 4, 6, 8, and 9.

Click Create, and configure prefix 5, as shown in Figure 15.

Figure 15 Configure prefix 5



Click Create, and configure prefix 7. The parameters values of prefix 7 is the same as that of prefix 5.

Configure a prefix for the subscribers under the unified gateway to dial the subscribers under the original PBX.

Configure prefix 8378: Long number prefix for the subscribers under the unified gateway to dial the long numbers under the original PBX through the PRA trunk. During actual deployment, configure this prefix according to the distribution of the original numbers of customers.

Configure prefix 022: Short number prefix for the subscribers under the unified gateway to directly dial the short numbers under the PBX.

Configure prefix 68905: Intra-office users can dial the long numbers on the new number segment to call the DID users under the original PBX.

Choose Trunk Management > Prefix Configuration.

Click Create, and set the relevant parameters, as shown in Figure 16.

Figure 16 Configure prefix 8378





Click OK.

Click Create, and configure prefix 022, as shown in Figure 17.

Figure 17 Configuring prefix 022




Click Create, and configure prefix 68905, as shown in Figure 18.

Figure 18 Configure prefix 68905




Configure the Trunk.

Configure the PRA trunk through which the unified gateway connects to carrier B's network.

Add a PRA link. Set the link number to 0, slot number to 7, E1/T1 port number to 0, and position to user. This parameter must be set through negotiations with the peer office. Different values must be set for the two offices.

Configure the PRA trunk through which the unified gateway connects to carrier A's network.

Add a PRA link. Set the link number to 1, slot number to 7, E1/T1 port number to 1, and position to user. This parameter must be set through negotiations with the peer office. Different values must be set for the two offices.

Configure the SIP trunk for interworking with the original PBX.

Choose Trunk > Trunk Configuration > PRA.

Click Add A Peer Office.

Click the connection line to configure the Trunk. Set the relevant parameters, as shown in Figure 19.

Figure 19 Configuring the PRA trunk




Click OK.

The PRA trunk is connected to carrier B's network.

Click Add A Peer Office.

Click the connection line to configure the Trunk. Set the relevant parameters, as shown in Figure 20.

Figure 20 Configuring the PRA trunk





Click OK.

Choose Trunk > Trunk Configuration > SIP.

Click Add A Peer Office.

Click the connection line to configure the Trunk. Set the relevant parameters, as shown in Figure 21.

Figure 21 Configuring the SIP trunk




Click OK.

The SIP trunk is connected to the original PBX.

Configure the clock source.

If the unified gateway connects to an upper-level device through the E1/T1 trunk, clock source configuration ensures that time on the unified gateway and the upper-level device are synchronized. This prevents frame slip (voice packet loss).

If the unified gateway connects to multiple devices through E1/T1 trunks, configure the clock source on any of these devices. The unified gateway will synchronize time with this device.

If the unified gateway provides the clock source, you do not need to configure the clock source.
In this example, the unified gateway uses carrier B's time.

Choose System > Clock Source Configuration.

From the Select clock source drop-down list box, select the Peer device.

Configure the active clock source as prompted based on the installation information about the E1/T1 trunk connected to the peer device, as shown in Figure 22.

Figure 22 Configuring the clock source




Click OK.

Click Data Save in the upper right corner of the web management system.

NOTICE:

The unsaved configurations will be deleted after the device is restarted.

Follow-up Procedure

In the actual scenario, if the dialing mode of the customer is dialing without prefix, that is, making outgoing calls by directly dialing the called number, and if an intra-office short number is the same as the first several digits of a local call number, change the call attribute of the outgoing prefix to Local or Intra-Office Call (interlocal). Set the minimum number length to the number length for intra-office numbers and the maximum number length to the number length for outer-office numbers. At the same time, set the WaitNextNumTimerLen parameter.

4. Configuring the Automatic Switchboard

This topic describes how to configure the automatic switchboard by running the VU script and configure the automatic switchboard number. After the automatic switchboard is configured, outer-office users hear an announcement when dialing the automatic switchboard number.


Procedure

    Configure the automatic switchboard service.

    Configure a VU number 68907888. An external subscriber hears the prompt tones played by the automatic switchboard when dialing this number.

    Run the following command to configure the calling number change rule, so that the unified gateway will not change calling numbers when PBX users call unified gateway users.

    config protocol pra officeno 2 supportclipredeal no

    Run the following command to enable the software parameter whose ID is 342.

    config softargu type 342 value 1

    NOTE:

    You must enable the software parameter whose ID is 342 when the intra-office or local call prefix, number mapping, and call forwarding functions are used together. Otherwise, the intra-office or local call prefix will not perform the second number analysis.

    When a unified gateway user directly dials a short number under the PBX, for example, 5000, the second number analysis is performed. During the second number analysis, number 5000 is mapped to 0225000. Then outgoing calls are made by dialing the prefix 022.

    Data save.

      In the command tree, choose System Management > Operator Management.

      Double-click Save.

   


B-  Cisco CUCM Configuration :

Overview :

Note:

IF you already have a CCUM preconfigured so you can start directly from the SIP trunk configuration .[step F]
The high level steps for configuring CUCM are as follows:

Create a partition.

Create a calling search space.

Define translation patterns.

Configure SIP Profile

Configure SIP Trunk Security Profile [Optional ]

Provision a SIP trunk.
Configure Route Group

Configure Route List

Set up route pattern.

      The following sections describe the CUCM configuration steps in more detail. And we only add the minimum configuration to configure the SIP trunk .

      Configuring Cisco Unified Communications Manager V7.X to V11.x

      Let’s dive into the configuration steps for CUCM. The connectivity between CUCM and the Huawei U1960 is referred to as SIP trunk to conform to Cisco’s terminology.


      1. Create a Partition

      A CUCM partition contains a list of route patterns. Partitions facilitate call routing by dividing the route plan into logical subsets that are based on organization, location, and call type. For details about partitions, see "Partitions and Calling Search Spaces" in the CUCM System Guide.

      This partition is specific to the SIP trunk that connects Office Communications Server to CUCM. It will store route pattern and translation pattern rules that are specific to handling incoming traffic to CUCM from the " Huawei U1960 Route". For our example, this partition is named "Huawei_SIP_PT_Local ".

      To create a CUCM partition


      From your CUCM Administration console, click Call Routing, click Class of Control, and then click Partition (Figure 2).
      Figure 2. Opening the partitions screen


      Click Add New to create a new partition as showing in Figure 3.


      Figure 3. Adding a new partition


      In the Name field, specify the name of the partition and a description as shown in Figure 4. We’ve specified " Huawei_SIP_PT_Local ".

      Figure 4. Name and description of the partition



      Click Save,



      Note:


      Whether a partition is required in a particular environment may depend on the rules required. Verify this with your CUCM administrator.


      2.Create a Calling Search Space


      A CUCM calling search space is an ordered list of route partitions. Calling search spaces determine which partitions and the order in which they are searched when CUCM routes a call. In our example, this calling search space is named "

      Huawei_SIP_CSS_Local " and is assigned to the "Huawei_SIP_PT_Local" partition created earlier.

      To create a calling search space

        From the CUCM Administration console, click Call Routing, click Class of Control, and then click Calling Search Space (Figure 7).

        Figure 7. Opening the Calling Search Space Configuration screen




              Click Add New to create a new calling search space. Specify a name for the calling search space. In our example, the new calling search space is " Huawei_SIP_CSS_Local ".

              Select the "Huawei_SIP_PT_Local" partition, and then click the down arrow to move it to the Selected Partitions area to assign this calling search space to the Huawei_SIP_PT_Local partition (Figure 8).



              Figure 8. Assigning the Huawei_SIP_CSS_Local calling search space to the Huawei_SIP_CSS_Local

                  Click Save to insert this calling search space into the CUCM configuration.

                   

      3.Define Translation Patterns

      Next, translation patterns must be defined and assigned to the newly created partition. Translation patterns manipulate dial strings before a call is routed.

      The translation patterns we’ll define are specific for handling inbound calls to the CUCM that come from Office Communications Server. A translation pattern converts dial strings for calls sent by the "Huawei U1960  " where the TO field matches the pattern. CUCM then uses the translated dial string to determine how to route the call.One or more translation patterns must be defined depending on your needs. At a minimum, you need to define at least two translation patterns:


      A translation pattern for incoming calls from Office Communications Server that are destined for the PSTN. This allows Office Communicator users who are enabled for Enterprise Voice to dial out externally.

      A translation pattern for incoming calls from Office Communications Server that are destined for CUCM-assigned phone numbers. This allows Office Communicator users to dial Cisco phones within the organization.


      If users are allowed to dial international numbers, you have to define a third translation pattern. Consider creating translation patterns for emergency numbers (for example, 911).

      Office Communications Server to PSTN Translation Pattern

      The first translation pattern (called 3316986xxxx, which means the TO string starting with33 followed by 9 digits as shown in Figure 9) transforms all calls from Office Communications Server that are destined to a domestic PSTN number.

      On your CUCM Administration console, click Call Routing, click Translation Pattern (Figure 9), and then click Add New to create a new translation pattern configuration.

      Figure 9. Opening the Translation Pattern Configuration screen



      The translation pattern is assigned to the Huawei_SIP_PT_Local partition that you previously created.
            the period (.) is a separator that indicates that all digits before the period are to be discarded.

          

      Figure 10. Configuring a new translation pattern

              

       


       Configure SIP Profile


             Step 1         From Cisco Unified CM Administration, choose Device > Device Settings > SIP Profile   

                           Step 2         Perform either of the following steps:


      To create a new profile, click Add New.

                

      To select an existing profile, click Find and select a SIP profile.

                    Step 3    Complete the fields in the SIP Profile Configuration window. For help with the fields, refer to the online help.    

                     Step 4    Click Save.

      4.Configure SIP Trunk Security Profile [Optional ]
           

      Step 1  In Cisco Unified CM Administration, choose System > Security > SIP Trunk Security Profile.

      Step 2  Perform either of the following steps:

      a) To select an existing profile, click Find and select an existing profile.    

      b) To create a new profile, click  Add New.

      Step 3 Complete the fields in the SIP Trunk Security Profile Configuration window.

      Step 4 Allow the ping on the configuration

             

      Step 5       Click Save


      5.Provision a SIP Trunk    

      A SIP trunk to the "Huawei U1960" is created on the CUCM and is assigned the "Huawei_SIP_CSS_Local" calling search space that was created earlier. The SIP trunk uses SIP over TCP, which requires port 5060.The CUCM SIP trunk is established to the IP address of the "Huawei U1960" that represents the gateway listening IP address.         

      In our example, the trunk name is Katmia_SIP-TR, and the "Huawei U1960 " gateway listening IP address is 192.168.10.10


      To create a new SIP trunk

        

      On the CUCM Administration console, click Device, and then click Trunk (Figure 12).

           

      Figure 12. Adding a new trunk



           
        

        Click Add New, and then on the Trunk Type list, select SIP Trunk. Select SIP as the Device Protocol, and then click Next (Figure 13).


        Figure 13. Configuring the SIP trunk




        Specify the Device Name (in our example, Katmia_SIP-TR), the Calling Search Space (in our example, Huawei_SIP_CSS_Local), the , the Destination Address to match the "Huawei U1960" gateway listening IP address (in our example, 192.168.10.10), and Destination Port (in our example, 5060).


        Table 1 lists the required Trunk Configuration settings and their values (Figure 14).


        Table 1. Required Trunk Configuration settings




              
          

        To successfully communicate with the Huawei U1960, CUCM must use the codec, G.711. The device pool default setting in CUCM 7.1 is configured to use the G.711 codec. The Device Pool setting shown in Table 1 and Figure 14 should be set to "Default". If your CUCM default device pool does not use G.711 as the codec, you will need to use a device pool that uses G.711.


        Figure 14. Trunk Configuration settings




            Click Save, and then reset the trunk by clicking the Reset icon at the top of the Trunk Configuration page to activate the SIP trunk changes.


           

          6. Configure Route Group


          Step 1 From Cisco Unified Communications Manager Administration, choose Call Routing > Route/Hunt > Route Group

          The Route Group Configuration window appears.

          Step 2 Choose one of the following options:

          To add a new route group, click the Add New button.

          To modify the settings for an existing route group, enter the search criteria, click Find, and choose aroute group from the resulting list for Ex [192.168.10.10].

          The Route Group Configuration window appears.

          Step 3 Configure the fields in the Route Group Configuration window. See the online help for more information about the fields and their configuration options.

          Step 4 Click Save.

                     


                      

          7.Configure Route List


                            

           

          Step 1 In Cisco Unified Communications Manager Administration, choose Call Routing > Route/Hunt > Route List            

          Step 2  Choose one of the following options:

          To add a new route list, click the Add New button.                    

          To modify the settings for an existing route list, enter the search criteria, click Find, and choose a route list from the resulting list.       
          Step 3 Configure the fields in the Route List Configuration window.
                     

          Step 4  To add a route group to the route list, click the Add Route Group button.

          Step 5   From the Route Group drop-down list, choose a route group to add to the route list.
          Step 6    Click Save.         

          Step 7 Click Apply Config.



            8.Set Up Route Pattern: CUCM to Office Communications Server
                     
                     

                              

          To set up the route pattern     

                                 

          From the CUCM Administration console, click Call Routing, click Route/Hunt, and then click Route Pattern (Figure 15).

                                 

          Click Add New, and then configure the route pattern.

                     

          Figure 15. Opening the Route Pattern screen



           




          For example, if you want users who are using a Cisco IP phone to be able to dial an Office Communicator user using a 4-digit extension, create a route pattern that is associated to the Katmia_SIP-TR SIP trunk that you created earlier that instructs CUCM to route to the "Huawei U1960" all calls that match the TO dial string with the pattern 0! . In this case, no transformation of the dial strings in the TO and the FROM fields is necessary. This route pattern configuration is illustrated in Figure 16.


          Figure 16. Route pattern

                     

                      
                  

           

                                

          You will need to define multiple CUCM routing patterns if you have different Office Communications Server numbering formats for specific offices or geographic locations.                       

          That completes your introduction to configuring a SIP trunk on Cisco’s Unified Communications Manager (also known as CallManager).

                       

          9.Verification



          Item


          Expected Result


          Possible Fault Cause


          Outgoing call


          Calls can be made properly, and the calling number is correctly displayed. For ex, user 5000 can make an through the AT0 trunk connected to the Huawei U19xx  through SIP Trunk , and call [0 + called no]



          The outgoing call prefix is incorrectly configured.


          The outgoing trunk is incorrectly configured.



          Incoming call


          Calls can be made properly. For example, an outer-office user can dial 83785888 and then dial 5000 as prompted to connect to user 5000.


          N/A




           

           

             



           

               



                 

                  


                END