[cisco-voip] Incoming Call Issue

[Wes Sisk]

Is it always the same channel (5) that fails?  Ringtone and voicepath 
are controlled by the DSP.  Maybe it is either locked or bad.  Try to 
reset DSP, then try router reboot.  If still not alive after reboot, 
time for an RMA

http://www.cisco.com/en/US/customer/tech/tk652/tk653/technologies_tech_note09186a00800e66b1.shtml

/Wes

King, Jesse wrote:

> CM 4.1(2), MGCP Gateway 3745, IOS ver 12.3.11t3, using a PRI
>  
>  
> Most calls coming in are fine. But sometimes a call comes in, This is 
> what happened - PSTN calling gets no ringing, but call rings on 7960 
> phone and is able to answer. No voice in or out is working. Call will 
> stay up until PSTN caller disconnects call because of no ringing or 
> conversation.
>  
> I can't seem to narrow this down, and frankly not sure how to. I did a 
> debug of ISDN q931, and have the capture of a good and a bad, but the 
> look the same. So I suspect I am not debugging the right thing.
>  
> Attached is the isdn q931 of the bad, then the good.
>  
> Any suggestions on where I could start?
>  
> Thanks guys.
>  
> Jesse
>
>------------------------------------------------------------------------
>
>Bad ISDN q931 debug
>
>Mar 24 10:13:03: ISDN Se4/0:23 Q931: RX <- SETUP pd = 8  callref = 0x01A2
>        Bearer Capability i = 0x8090A2
>                Standard = CCITT
>                Transer Capability = Speech
>                Transfer Mode = Circuit
>                Transfer Rate = 64 kbit/s
>        Channel ID i = 0xA98385
>                Exclusive, Channel 5
>        Facility i = 0x9F8B0100A10F02010106072A8648CE1500040A0100
>                Protocol Profile =  Networking Extensions
>                0xA10F02010106072A8648CE1500040A0100
>                Component = Invoke component
>                        Invoke Id = 1
>                        Operation = InformationFollowing (calling_name)
>                                Name information in subsequent FACILITY message
>        Calling Party Number i = 0x2183, 'XXXXXXXXXX'
>                Plan:ISDN, Type:National
>        Called Party Number i = 0x80, 'XXXX'
>                Plan:Unknown, Type:Unknown
>Mar 24 10:13:03: ISDN Se4/0:23 Q931: TX -> CALL_PROC pd = 8  callref = 0x81A2
>        Channel ID i = 0xA98385
>                Exclusive, Channel 5
>Mar 24 10:13:03: ISDN Se4/0:23 Q931: TX -> ALERTING pd = 8  callref = 0x81A2
>        Progress Ind i = 0x8088 - In-band info or appropriate now available
>Mar 24 10:13:03: ISDN Se4/0:23 Q931: RX <- FACILITY pd = 8  callref = 0x01A2
>        Facility i = 0x9F8B0100A1080201010201008400
>                Protocol Profile =  Networking Extensions
>                0xA1080201010201008400
>                Component = Invoke component
>                        Invoke Id = 1
>                        Operation = CallingName
>                                Name not available
>Mar 24 10:13:08: ISDN Se4/0:23 Q931: TX -> CONNECT pd = 8  callref = 0x81A2
>        Display i = 'Jesse King'
>Mar 24 10:13:08: ISDN Se4/0:23 Q931: RX <- STATUS pd = 8  callref = 0x01A2
>        Cause i = 0x80E328 - Information element not implemented
>        Call State i = 0x07
>Mar 24 10:13:08: ISDN Se4/0:23 Q931: RX <- CONNECT_ACK pd = 8  callref = 0x01A2
>
>
>
>Good IDSN q931 here:
>
>Mar 24 10:23:32: ISDN Se4/0:23 Q931: RX <- SETUP pd = 8  callref = 0x01BA
>        Bearer Capability i = 0x8090A2
>                Standard = CCITT
>                Transer Capability = Speech
>                Transfer Mode = Circuit
>                Transfer Rate = 64 kbit/s
>        Channel ID i = 0xA98382
>                Exclusive, Channel 2
>        Facility i = 0x9F8B0100A10F02010106072A8648CE1500040A0100
>                Protocol Profile =  Networking Extensions
>                0xA10F02010106072A8648CE1500040A0100
>                Component = Invoke component
>                        Invoke Id = 1
>                        Operation = InformationFollowing (calling_name)
>                                Name information in subsequent FACILITY message
>        Calling Party Number i = 0x2183, 'XXXXXXXXXX'
>                Plan:ISDN, Type:National
>        Called Party Number i = 0x80, 'XXXX'
>                Plan:Unknown, Type:Unknown
>Mar 24 10:23:32: ISDN Se4/0:23 Q931: TX -> CALL_PROC pd = 8  callref = 0x81BA
>        Channel ID i = 0xA98382
>                Exclusive, Channel 2
>Mar 24 10:23:32: ISDN Se4/0:23 Q931: TX -> ALERTING pd = 8  callref = 0x81BA
>        Progress Ind i = 0x8088 - In-band info or appropriate now available
>Mar 24 10:23:32: ISDN Se4/0:23 Q931: RX <- FACILITY pd = 8  callref = 0x01BA
>        Facility i = 0x9F8B0100A1080201010201008400
>                Protocol Profile =  Networking Extensions
>                0xA1080201010201008400
>                Component = Invoke component
>                        Invoke Id = 1
>                        Operation = CallingName
>                                Name not available
>Mar 24 10:23:37: ISDN Se4/0:23 Q931: TX -> CONNECT pd = 8  callref = 0x81BA
>        Display i = 'Jesse King'
>Mar 24 10:23:37: ISDN Se4/0:23 Q931: RX <- STATUS pd = 8  callref = 0x01BA
>        Cause i = 0x80E328 - Information element not implemented
>        Call State i = 0x07
>Mar 24 10:23:37: ISDN Se4/0:23 Q931: RX <- CONNECT_ACK pd = 8  callref = 0x01BA
>
>------------------------------------------------------------------------
>
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