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Telco Messages via PRI (VG) connected to CUCM 9.X via SIP Trunk??

richard.grey
Level 1
Level 1

Hello 

Questions:

Should I hear tel-co message on an IP Phone if a call that is meant to be long distance is sent to the  gateway without a one (1).  Currently these calls simply ring until disconnect, but work properly if the user dials a 1, the user expects to get a message from the provider and I am wondering if the SIP trunk between GW and CUCM is not allowing it?

Scenario:

IP Phone --> CUCM (SIP Trunk) --> ISR 2901(PRI) --> PSTN

 

In CUCM we have a local pattern 9.[2-9]XX[2-9]XXXXXX

 

If the IP Phone dials a number that is actually a long distance number, which would require a 1, but they dial it as a 10 digit local number, the call gets to the gateway and IP Phone hears ringing but it, rings until it eventually disconnects.  At this point I believe the gateway is sending a cause code back to CUCM and I would expect error message back from the telco informing the caller of the issue, such as "Please dial 1 before a long distance number".  Is there a specific setting on the SIP trunk and or Gateway to achieve this?

 

See Q931 Debug 

 

     Bearer Capability i = 0x8090A2 
                Standard = CCITT 
                Transfer Capability = Speech  
                Transfer Mode = Circuit 
                Transfer Rate = 64 kbit/s 
        Channel ID i = 0xA9838F 
                Exclusive, Channel 15 
        Display i = 0xB1, 'London Hydro' 
        Calling Party Number
UCS5-GW-02# i = 0x2181, '5193334444' 
                Plan:ISDN, Type:National 
        Called Party Number i = 0xA1, '5191112222' 
                Plan:ISDN, Type:National
*Jul 23 15:33:28.363: ISDN Se0/0/1:23 Q931: RX <- STATUS pd = 8  callref = 0xC3FA 
        Cause i = 0x80AB28 - Access information discarded 
        Call State i = 0x01
*Jul 23 15:33:28.411: ISDN Se0/0/1:23 Q931: RX <- CALL_PROC pd = 8  callref = 0xC3FA 
        Channel ID i = 0xA9838F 
                Exclusive, Channel 15
*Jul 23 15:33:28.415: ISDN Se0/0/1:23 Q931: RX <- PROGRESS pd = 8  callref = 0xC3FA 
        Cause i = 0x80FF - Interworking error; unspecified 
        Progress Ind i = 0x8088 - In-band info or appropriate now available 

 

Thanks

Richard

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