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CME Call forward All Issue

Cisco CallManager, Cisco CallManager Express and IP Video

CME Call forward All Issue

Postby Guest » Sat Mar 18, 2006 10:10 pm


Hello all, I've configured CME4.1 in a 2851 with CUE 2.3. I'm facing some issues with call forwards. Here's the scenario:

Call-forward-All configured on IP Phone A to a external landline or handphone number-

a) IP Phone B calling IP Phone A, call forward works. Land line or handphone receives call.

b)External handphone call DID of IP Phone A. Calling phone can hear ring tone, but the landline/handphone which was forwarded to from IP Phone A is not ringing. After a while, the ringing tone on the calling phone stops and we get slow engage tones which is not our usual telco engage tone in S'pore.

If the targeted call-forward-all number is configured as an internal extension of another IP Phone, everything works fine.

Here's the configuration in the attached file.

Any idea what the issue is?

Thanks

Alvin

 

Guest
 

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Re:CME Call forward All Issue

Postby Guest » Sat Mar 18, 2006 10:47 pm


Hello Alvin,

This can be an issue with Q931 messages and IE on the PRI. Now, you have configured:

voice call send-alert

voice call convert-discpi-to-prog

voice rtp send-recv

Did you configured these because of a problem, or just because these commands are in some troubleshooting document ?

I need to ask this before be proceed further with the usual debug of "isdn q931".

Guest
 

Re:CME Call forward All Issue

Postby Guest » Sat Mar 18, 2006 11:33 pm


you got me there, i've no idea this came into the config. probably configured by fellow colleagues when they are troubleshooting other issues. meanwhile here's the debug isdn q931:

132350: Jun 15 17:08:15.793 SGT: ISDN Se0/0/0:15 Q931: RX <- SETUP pd = 8  callref = 0x0034

        Sending Complete

        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 = 0x4183, '96800021'

                Plan:ISDN, Type:Subscriber(local)

        Called Party Number i = 0xC1, '63057340'

                Plan:ISDN, Type:Subscriber(local)

132351: Jun 15 17:08:15.809 SGT: ISDN Se0/0/0:15 Q931: TX -> CALL_PROC pd = 8  callref = 0x8034

        Channel ID i = 0xA98382

                Exclusive, Channel 2

132352: Jun 15 17:08:15.817 SGT: ISDN Se0/0/0:15 Q931: Applying typeplan for sw-type 0x12 is 0x4 0x1

, Calling num 63057373

132353: Jun 15 17:08:15.817 SGT: ISDN Se0/0/0:15 Q931: Applying typeplan for sw-type 0x12 is 0x4 0x1

, Called num 90298053

132354: Jun 15 17:08:15.817 SGT: ISDN Se0/0/0:15 Q931: TX -> SETUP pd = 8  callref = 0x098C

        Sending Complete

        Bearer Capability i = 0x8090A3

                Standard = CCITT

                Transfer Capability = Speech

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0xA9839C

                Exclusive, Channel 28

        Calling Party Number i = 0x4183, '63057373'

                Plan:ISDN, Type:Subscriber(local)

        Called Party Number i = 0xC1, '90298053'

                Plan:ISDN, Type:Subscriber(local)

132355: Jun 15 17:08:16.145 SGT: ISDN Se0/0/0:15 Q931: RX <- CALL_PROC pd = 8  callref = 0x898C

        Channel ID i = 0xA9839C

                Exclusive, Channel 28

132356: Jun 15 17:08:16.545 SGT: ISDN Se0/0/0:15 Q931: RX <- DISCONNECT pd = 8  callref = 0x898C

        Cause i = 0x829C - Invalid number format (incomplete number)

        Progress Ind i = 0x8288 - In-band info or appropriate now available

132357: Jun 15 17:08:16.549 SGT: ISDN Se0/0/0:15 Q931: call_disc: PI received in disconnect; Postpon

e sending RELEASE for callid 0x890D

132358: Jun 15 17:08:16.553 SGT: ISDN Se0/0/0:15 Q931: TX -> ALERTING pd = 8  callref = 0x8034

        Progress Ind i = 0x8188 - In-band info or appropriate now available

132359: Jun 15 17:08:20.745 SGT: ISDN Se0/0/0:15 Q931: RX <- DISCONNECT pd = 8  callref = 0x0034

        Cause i = 0x8090 - Normal call clearing

        Progress Ind i = 0x8288 - In-band info or appropriate now available

132360: Jun 15 17:08:20.749 SGT: ISDN Se0/0/0:15 Q931: TX -> RELEASE pd = 8  callref = 0x8034

132361: Jun 15 17:08:20.753 SGT: ISDN Se0/0/0:15 Q931: TX -> RELEASE pd = 8  callref = 0x098C

132362: Jun 15 17:08:20.833 SGT: ISDN Se0/0/0:15 Q931: RX <- RELEASE_COMP pd = 8  callref = 0x0034

132363: Jun 15 17:08:20.873 SGT: ISDN Se0/0/0:15 Q931: RX <- RELEASE_COMP pd = 8  callref = 0x898C

Oh yeah, you've probably noticed that my outbound calling number has been translated to my PRI trunk number 63057373.

Guest
 

Re:CME Call forward All Issue

Postby Guest » Sat Mar 18, 2006 11:53 pm


Hi,

The problem appears to be:

Cause i = 0x829C - Invalid number format(incomplete number)

Please make a call with debug to 90298053, either directly or via the forwarded extension, so we can compare the difference in the way router is building the setup message.

The translation you applied is correct. There is a technique to make so the calling number is the DID of the extension forwarding, but beside you may not want this, it's a bit more complicated.

Guest
 

Re:CME Call forward All Issue

Postby Guest » Sun Mar 19, 2006 12:28 am


OK, I've done the debug again, this time calling the number directly from the phone configured with the call-forward-all function.

132505: Jun 15 18:01:12.997 SGT: ISDN Se0/0/0:15 Q931: Applying typeplan for sw-type 0x12 is 0x0 0x1

, Calling num 63057340

132506: Jun 15 18:01:13.001 SGT: ISDN Se0/0/0:15 Q931: Applying typeplan for sw-type 0x12 is 0x0 0x1

, Called num 90298053

132507: Jun 15 18:01:13.001 SGT: ISDN Se0/0/0:15 Q931: TX -> SETUP pd = 8  callref = 0x09CE

        Sending Complete

        Bearer Capability i = 0x8090A3

                Standard = CCITT

                Transfer Capability = Speech

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0xA9839C

                Exclusive, Channel 28

        Progress Ind i = 0x8183 - Origination address is non-ISDN

        Calling Party Number i = 0x0180, '63057340'

                Plan:ISDN, Type:Unknown

        Called Party Number i = 0x81, '90298053'

                Plan:ISDN, Type:Unknown

132508: Jun 15 18:01:13.325 SGT: ISDN Se0/0/0:15 Q931: RX <- CALL_PROC pd = 8  callref = 0x89CE

        Channel ID i = 0xA9839C

                Exclusive, Channel 28

132509: Jun 15 18:01:17.405 SGT: ISDN Se0/0/0:15 Q931: RX <- ALERTING pd = 8  callref = 0x89CE

132510: Jun 15 18:01:20.137 SGT: ISDN Se0/0/0:15 Q931: RX <- CONNECT pd = 8  callref = 0x89CE

        Date/Time i = 0x07060F1201

132511: Jun 15 18:01:20.137 SGT: %ISDN-6-CONNECT: Interface Serial0/0/0:27 is now connected to 90298053 N/A

132512: Jun 15 18:01:20.141 SGT: ISDN Se0/0/0:15 Q931: TX -> CONNECT_ACK pd = 8  callref = 0x09CE

132513: Jun 15 18:01:22.017 SGT: ISDN Se0/0/0:15 Q931: RX <- DISCONNECT pd = 8  callref = 0x89CE

        Cause i = 0x8090 - Normal call clearing

        Progress Ind i = 0x8288 - In-band info or appropriate now available

132514: Jun 15 18:01:22.017 SGT: %ISDN-6-DISCONNECT: Interface Serial0/0/0:27  disconnected from 90298053 , call lasted 1 seconds

132515: Jun 15 18:01:22.017 SGT: ISDN Se0/0/0:15 Q931: call_disc: PI received in disconnect; Postpone sending RELEASE for callid 0x894F

132516: Jun 15 18:01:28.225 SGT: ISDN Se0/0/0:15 Q931: RX <- PROGRESS pd = 8  callref = 0x89CD

        Progress Ind i = 0x8482 - Destination address is non-ISDN

        Progress Ind i = 0x8488 - In-band info or appropriate now available

Guest
 

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