08-05-2014 12:28 AM - edited 03-16-2019 11:38 PM
Hello,
International call fails from one of the PRI port 0/2/0, but national and GSM works fine, cause code (31) need advice from experts on CSC.
Attached are the debug output from the working PRI and non working PRI & configuration.
thanks
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08-05-2014 02:12 AM
There is no difference between the working international call and non-working international call. The only difference is that non-working is on 0/2/0 while working is on 0/0/0. We are sending the same information on both the lines but it is not being accepted on 0/2/0.
Please check with the telco on what they are expecting on line 0/2/0 and why they are disconnecting the call with cause 31.
08-05-2014 01:35 AM
In the non-working case, the call fails with cause 31 which is
Cause No. 31 - normal. unspecified.
This cause is used to report a normal event only when no other cause in the normal class applies.
Can you take the debug isdn q931 for the successful and failed call and also send them here?
That should give us the answer to the cause of failure.
08-05-2014 01:55 AM
08-05-2014 02:02 AM
08-05-2014 02:03 AM
For the successful call, once you send the call to the telco, it is being routed by the telco.
Aug 5 08:45:33.771: ISDN Se0/1/0:15 Q931: TX -> SETUP pd = 8 callref = 0x4930 Bearer Capability i = 0x8090A3 Standard = CCITT Transfer Capability = Speech Transfer Mode = Circuit Transfer Rate = 64 kbit/s Channel ID i = 0xA98387 Exclusive, Channel 7 Calling Party Number i = 0x0081, '877' Plan:Unknown, Type:Unknown Called Party Number i = 0x80, '24773376' Plan:Unknown, Type:Unknown Aug 5 08:45:33.807: ISDN Se0/1/0:15 Q931: RX <- SETUP_ACK pd = 8 callref = 0xC930 Channel ID i = 0xA98387 Exclusive, Channel 7 Aug 5 08:45:34.859: ISDN Se0/1/0:15 Q931: RX <- CALL_PROC pd = 8 callref = 0xC930 Progress Ind i = 0x8488 - In-band info or appropriate now available
The Telco is responding with Call proceeding which means the call is being routed, then an alerting. So they are reaching the number called.
However, in the non-working case, the telco is sending a disconnect. You will need to ask the telco why we are receiving a disconnect from them. Is there some information that we are not sending them?
Do we need to send a different format of digits? Or do we need to change the type of number?
Once they answer those questions or check their side, the problem should get solved.
Aug 5 08:40:43.551: ISDN Se0/2/0:15 Q931: TX -> SETUP pd = 8 callref = 0x491F Bearer Capability i = 0x8090A3 Standard = CCITT Transfer Capability = Speech Transfer Mode = Circuit Transfer Rate = 64 kbit/s Channel ID i = 0xA98382 Exclusive, Channel 2 Calling Party Number i = 0x0081, '080' Plan:Unknown, Type:Unknown Called Party Number i = 0x80, '00912223710485' Plan:Unknown, Type:Unknown Aug 5 08:40:43.583: ISDN Se0/2/0:15 Q931: RX <- SETUP_ACK pd = 8 callref = 0xC91F Channel ID i = 0xA98382 Exclusive, Channel 2 Aug 5 08:40:43.639: ISDN Se0/2/0:15 Q931: RX <- DISCONNECT pd = 8 callref = 0xC91F Cause i = 0x829F - Normal, unspecified Facility i = 0x91A10B02017F0606040087690107 Protocol Profile = Remote Operations Protocol 0xA10B02017F0606040087690107 Component = Invoke component 3PTY Request Progress Ind i = 0x8288 - In-band info or appropriate now available
08-05-2014 02:06 AM
08-05-2014 02:12 AM
There is no difference between the working international call and non-working international call. The only difference is that non-working is on 0/2/0 while working is on 0/0/0. We are sending the same information on both the lines but it is not being accepted on 0/2/0.
Please check with the telco on what they are expecting on line 0/2/0 and why they are disconnecting the call with cause 31.
08-05-2014 02:26 AM
+5 from me too, OK i will check with telco and mark as correct on the post to know others such problems are from telco.
thanks for all to contributing suggestions.
08-05-2014 02:28 AM
Thanks! Glad I could help :)
08-05-2014 02:14 AM
+5 for Sreekanth . You have to check with your provider how many digits you have to send or share youe configuration with him , after that check that international service enable on the line.
thanks
please rate all useful information
08-05-2014 01:55 AM
Hello
31 cause code means
Normal, unspecified | Typical scenarios include: •Normal operation | 31 | Reports a normal event only when no other cause in the normal class applies. |
The outgoing call match the outgoing dial-peer 30 without no issues . so as suggested kindly share debug isdn q931 , with failed and success international call .
thanks
please rate all useful information
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