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New Member

Error when ip phone is busy

I have a Callmanager that uses a gateway 3640 with a ISDN PRI as PSTN access. When there is a call from PSTN to a IpPhone in busy state the caller don't hear the busy tone but a provider's message " the number doesn't exist".

The debugs of the gateway:

deb cch323 h225

deb cch323 h245

Aug 19 10:54:39: H.225 SM: process event H225_EVENT_SETUP, for callID 8BBcch323_

run_h225_sm: received event H225_EVENT_SETUP while at state H225_IDLE

Aug 19 10:54:39: cch323_h225_check_qos_and_snd_setup: Setup ccb 0x63FDE020 callI

D 0x8BB

Aug 19 10:54:39: H.225 SM: process event H225_EVENT_FAST_SETUP, for callID 8BBcc

h323_run_h225_sm: received event H225_EVENT_FAST_SETUP while at state H225_IDLE

Aug 19 10:54:39: cch323_run_h225_sm: Setup ccb 0x63FDE020 callID 0x8BB

Aug 19 10:54:39: cch323_h225_generic_send_setup-- sending calling IE

Aug 19 10:54:39: ======= PI in cch323_h225_generic_send_setup = 3

Aug 19 10:54:39: Send infoXCap 128

Aug 19 10:54:39: src address = 10.226.192.254 of h225SetupRequest

Aug 19 10:54:39: dest address = 10.226.192.6 of h225SetupRequest

Aug 19 10:54:39: H.225 SM: changing from H225_IDLE state to H225_REQ_SETUP state

for callID 8BB

Aug 19 10:54:39: cch323_h225_receiver: received msg of type CALLPROCIND_CHOSEN

Aug 19 10:54:39: ====== PI in cch323_h225_callproc_ind = 0

Aug 19 10:54:39: Other end of call is dropping tunneling.

Aug 19 10:54:39: src address = 10.226.192.254 of CALLPROCIND_CHOSEN

Aug 19 10:54:39: dest address = 10.226.192.6 of CALLPROCIND_CHOSEN

cch323_run_h225_sm: received event H225_EVENT_CALLPROC_IND while at state H225_R

EQ_SETUP

Aug 19 10:54:39: H.225 SM: changing from H225_REQ_SETUP state to H225_REQ_CALLPR

OC state for callID 8BB

Aug 19 10:54:39: cch323_h225_receiver: received msg of type RELEASEIND_CHOSEN

Aug 19 10:54:39: cch323_h225_release_ind: disconnect cause 17 location code 0

Aug 19 10:54:39: src address = 10.226.192.254 of RELEASEIND_CHOSEN

Aug 19 10:54:39: dest address = 10.226.192.6 of RELEASEIND_CHOSEN

cch323_run_h225_sm: received event H225_EVENT_RELEASE_IND while at state H225_RE

Q_CALLPROC

Aug 19 10:54:39: H.225 SM: process event H225_EVENT_RELEASE, for callID 8BBcch32

3_run_h225_sm: received event H225_EVENT_RELEASE while at state H225_REQ_CALLPRO

C

Aug 19 10:54:39: cch323_h225_send_release: Cause = 17 Location = 0

Aug 19 10:54:39: src address = 10.226.192.254 of h225TerminateRequest

Aug 19 10:54:39: dest address = 10.226.192.6 of h225TerminateRequest

Aug 19 10:54:39: H.225 SM: changing from H225_REQ_CALLPROC state to H225_IDLE st

ate for callID 8BB

Thanks in advance

Giovanni

5 REPLIES
Silver

Re: Error when ip phone is busy

This look more like an IOS bug to me rather than anything else. Check for any known issues in the version that you are running using the bug toolkit.

New Member

Re: Error when ip phone is busy

I upgrade the router to version 12.3.2-t1 but the problem is the same.

New Member

Re: Error when ip phone is busy

Can you post output of "debug isdn q931"?

The busy ip phone, you are trying to call, is it forwarded on busy to some other number??

Is call waiting enabled on the busy ip phone??

New Member

Re: Error when ip phone is busy

Hi,

the phone is configured with no forwarding on busy and the call waiting is default. In the CallManager's Service parameters the Call Waiting Enable parameter is set to False. This setting is required from the customer becouse he want only one call at time on the phone.

Follow the q931 debug:

Sep 9 13:58:05: ISDN Se3/0:15 Q931: ALERTING pd = 8 callref = 0x804C

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

Sep 9 13:58:09: ISDN Se3/0:15 Q931: SETUP pd = 8 callref = 0x004D

Sending Complete

Bearer Capability i = 0x8090A3

Standard = CCITT

Transer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA1838D

Preferred, Channel 13

Calling Party Number i = 0x0181, '3482511643'

Plan:ISDN, Type:Unknown

Called Party Number i = 0xA1, '458871671'

Plan:ISDN, Type:National

High Layer Compat i = 0x9181

Sep 9 13:58:09: ISDN Se3/0:15 Q931: CALL_PROC pd = 8 callref = 0x804D

Channel ID i = 0xA98389

Exclusive, Channel 9

Sep 9 13:58:09: ISDN Se3/0:15 Q931: DISCONNECT pd = 8 callref = 0x804D

Cause i = 0x8081 - Unallocated/unassigned number

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

Sep 9 13:58:09: ISDN Se3/0:15 Q931: RELEASE pd = 8 callref = 0x004D

Cause i = 0x82E31E - Information element not implemented

Sep 9 13:58:09: ISDN Se3/0:15 Q931: RELEASE_COMP pd = 8 callref = 0x804D

Cause i = 0x8081 - Unallocated/unassigned number

Sep 9 13:58:10: ISDN Se3/0:15 Q931: DISCONNECT pd = 8 callref = 0x80A8

Cause i = 0x8090 - Normal call clearing

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

New Member

Re: Error when ip phone is busy

The issue is solved, in the configuration there was this parameter "disconnect cause 1" that generate the issue.

Bye

Giovanni

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