05-12-2021 11:36 PM
I am using CUCM with PSTN/E1.
I am able to receive calls (Inbound) but unable to make calls (Outbound), what can I do to resolve it?
When I receive calls:
May 11 18:47:44.559 GMT: ISDN Se0/1/0:15 Q931: RX <- SETUP pd = 8 callref = 0x69D3
Bearer Capability i = 0x8090A3
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98383
Exclusive, Channel 3
Calling Party Number i = 0x1181, '258842912221'
Plan:ISDN, Type:International
Called Party Number i = 0xC1, '0957700'
Plan:ISDN, Type:Subscriber(local)
High Layer Compat i = 0x9181
Sending Complete
May 11 18:47:44.573 GMT: ISDN Se0/1/0:15 Q931: TX -> CALL_PROC pd = 8 callref = 0xE9D3
Channel ID i = 0xA98383
When I make calls (Unable):
May 11 18:49:02.876 GMT: ISDN Se0/1/0:15 Q931: TX -> SETUP pd = 8 callref = 0x0003
Sending Complete
Bearer Capability i = 0x8090A3
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98394
Exclusive, Channel 20
Display i = 'IT'
Calling Party Number i = 0x0081, N/A
Plan:Unknown, Type:Unknown
Called Party Number i = 0x80
Plan:Unknown, Type:Unknown
May 11 18:49:02.921 GMT: ISDN Se0/1/0:15 Q931: RX <- STATUS pd = 8 callref = 0x8003
Cause i = 0x82E328 - Information element not implemented
Call State i = 0x01
Solved! Go to Solution.
05-13-2021 12:19 AM
Also the setting “Number of digits to strip” is All. This would something that I would be looking at as it sounds wrong to me.
05-12-2021 11:43 PM - edited 05-12-2021 11:43 PM
There is no calling or called number information in the debug.
Calling Party Number i = 0x0081, N/A
Plan:Unknown, Type:Unknown
Called Party Number i = 0x80
Plan:Unknown, Type:Unknown
Make sure that you send this through from CM to the gateway and then onwards to the service provider.
05-12-2021 11:48 PM
I am sure that it´s going through the gateway.
05-12-2021 11:57 PM
The RP is linked to that GW.
But as soon I make outgoing calls they get dropped, but I can receive incoming calls.
05-13-2021 12:02 AM
What control protocol do you use for the gateway, SIP, H.323 or MGCP? Depending upon the answer the next step would be to run a set of debugs on the gateway to see what you get from CM.
05-13-2021 12:04 AM - edited 05-13-2021 12:05 AM
Cisco MGCP E1 Port
05-13-2021 12:12 AM
That would be the protocol that I have the least updated knowhow about since we moved away from it many years ago. Recommend you to do a search for what debugs that would be applicable for MGCP or let’s see if someone else in the community can assist you with this.
05-13-2021 12:14 AM
See this document for MGCP troubleshooting. https://www.cisco.com/c/en/us/support/docs/voice/media-gateway-control-protocol-mgcp/214635-configure-and-troubleshoot-mgcp-gateways.html
05-13-2021 12:07 AM
If you are sure that you send the numbers from CM to the gateway test to set the type of number and plan to match what you get for an inbound call on the outbound call.
Calling Party Number i = 0x1181, '258842912221'
Plan:ISDN, Type:International
Called Party Number i = 0xC1, '0957700'
Plan:ISDN, Type:Subscriber(local)
05-13-2021 12:19 AM - edited 05-13-2021 12:20 AM
That was after changing it.
And still not able to make outgoing calls.
05-13-2021 12:09 AM
That is the details for the GW
05-13-2021 12:17 AM - edited 05-13-2021 12:17 AM
Change those from Cisco CallManager to match the values you get from the Telco on an inbound call and reset the gateway in CM to activate the change.
05-13-2021 12:19 AM
Also the setting “Number of digits to strip” is All. This would something that I would be looking at as it sounds wrong to me.
05-13-2021 12:27 AM
Set it to 0?
05-13-2021 12:35 AM
That was the solution.
Thanks.
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