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Call Barring Notification Is Displayed for an Outgoing Call When the eSpace U1910 Functions as a Tandem Office

Publication Date:  2016-02-01 Views:  1297 Downloads:  5

Issue Description

A user under the Asterisk gateway fails to make a call to a PSTN user through the U1910, and a message indicating limited call permissions is displayed. The default call permission of the trunk between the Asterisk gateway and U1910 is inter&local. The outgoing call permission from the U1910 to the PSTN is ddd.
The following figure shows the network diagram.

Handling Process

According to logs on the U1910, the call is barred by the trunk. The default call permission of the trunk is inter&local, but the ddd permission is used to control outgoing calls. In the following information, call release error code 22 indicates call barring.
[108][0x000001ef][2015-6-07 14:31:17.19][ccm.c 37178][dwCCMNo=  478] Caller not Config, The call is restricted by TKG! 
[112][0x000001ef][2015-6-07 14:31:17.19][ccm.c 62969][dwCCMNo=  478] The call is Restricted by TrunkGroup or CallerPrefix! 
[121][0x000001ef][2015-6-07 14:31:17.19][ccm.c 26005][Release Line= 72646][dwCCMNo=  478] CCM_ReleaseCallByCaller( ucCause = [22] )


On the U1910 gateway, enable the ddd permission for the trunk connecting to the Asterisk gateway.
Complete the following configuration to resolve the problem:
[%eSpace U1910(config)]#show trunkgroup
TKCGroup Info

GroupNo Office Protocol Direction   Restrict BasicOutgoing WithCUS CLIIndex CLDI
------- ------ -------- ----------- -------- ------------- ------- -------- ----
6096    254    AT0      BiDirection YES      INTER/LOCAL   NO      ---      ---

367     15     SIP      BiDirection YES      INTER/LOCAL   NO      ---      ---

DomainType TrunkLevel Operator SendErrorCode
---------- ---------- -------- -------------
COMMON     Default    No       No
COMMON     Default    No       No

------- Matched record number : [2] -------

[%eSpace U1910(config)]#config modify trunkgroup no 367 restrict yes outgoingright add ddd


1.The default permission of the trunk on the U1910 gateway is inter&local, preventing toll fraud.

2.In the scenario where the U1910 gateway functions as a tandem office, users under the Asterisk gateway can make calls using the SIP trunk, and the calls are routed to the U1910. The U1910 considers the trunk group as a calling party, and determines whether to set up the calls based on permissions of the trunk group.