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Bronze

Certain Calls Cannot Complete over QSIG

We have a QSIG CM and BT Switch. Certain calls get connected while some calls get a Cause i = 0x82E6 - Recovery on timer expiry message

Below are two isdn q931 debug outputs:

Working:

Router1(conf-serv-h323)#

Mar 13 19:00:18.474: ISDN Se0/1/0:23 Q931: Applying typeplan for sw-type 0x16 is 0x2 0x1, Calling num 7187511262

Mar 13 19:00:18.474: ISDN Se0/1/0:23 Q931: Applying typeplan for sw-type 0x16 is 0x0 0x0, Called num 1156

Mar 13 19:00:18.474: ISDN Se0/1/0:23 Q931: TX -> SETUP pd = 8 callref = 0x00AE

Bearer Capability i = 0x8090A2

Standard = CCITT

Transfer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA98381

Exclusive, Channel 1

Facility i = 0x9F8B0100A10F02010106072A8648CE1500040A0100

Progress Ind i = 0x8483 - Origination address is non-ISDN

Calling Party Number i = 0x2183, '7187511262'

Plan:ISDN, Type:National

Called Party Number i = 0x80, '1156'

Plan:Unknown, Type:Unknown

Mar 13 19:00:18.494: ISDN Se0/1/0:23 Q931: RX <- SETUP_ACK pd = 8 callref = 0x80AE

Channel ID i = 0xA98381

Exclusive, Channel 1

Progress Ind i = 0x8483 - Origination address is non-ISDN

Mar 13 19:00:18.818: ISDN Se0/1/0:23 Q931: TX -> FACILITY pd = 8 callref = 0x00AE

Facility i = 0x9F8B0100A117020101020100800F43656C6C2050686F6E652020204E59

Mar 13 19:00:33.523: ISDN Se0/1/0:23 Q931: RX <- CALL_PROC pd = 8 callref = 0x80AE

Channel ID i = 0xA98381

Exclusive, Channel 1

Mar 13 19:00:33.663: ISDN Se0/1/0:23 Q931: RX <- ALERTING pd = 8 callref = 0x80AE

Channel ID i = 0xA98381

Exclusive, Channel 1

Router1(conf-serv-h323)#do u all

Non-Working:

Mar 13 18:59:02.291: ISDN Se0/1/0:23 Q931: Applying typeplan for sw-type 0x16 is 0x2 0x1, Calling num 2127925679

Mar 13 18:59:02.291: ISDN Se0/1/0:23 Q931: Applying typeplan for sw-type 0x16 is 0x0 0x0, Called num 1156

Mar 13 18:59:02.291: ISDN Se0/1/0:23 Q931: TX -> SETUP pd = 8 callref = 0x00AD

Bearer Capability i = 0x8090A2

Standard = CCITT

Transfer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA98381

Exclusive, Channel 1

Facility i = 0x9F8B0100A10F02010106072A8648CE1500040A0100

Calling Party Number i = 0x2183, '2127925772'

Plan:ISDN, Type:National

Called Party Number i = 0x80, '1156'

Plan:Unknown, Type:Unknown

Mar 13 18:59:02.311: ISDN Se0/1/0:23 Q931: RX <- SETUP_ACK pd = 8 callref = 0x80AD

Channel ID i = 0xA98381

Exclusive, Channel 1

Mar 13 18:59:02.515: ISDN Se0/1/0:23 Q931: TX -> FACILITY pd = 8 callref = 0x00AD

Facility i = 0x9F8B0100A117020101020100800F5245475553204255532043454E5445

Mar 13 18:59:12.284: ISDN Se0/1/0:23 Q931: TX -> DISCONNECT pd = 8 callref = 0x00AD

Cause i = 0x82E6 - Recovery on timer expiry

Mar 13 18:59:12.292: ISDN Se0/1/0:23 Q931: RX <- RELEASE pd = 8 callref = 0x80AD

Cause i = 0x82E6 - Recovery on timer expiry

Mar 13 18:59:12.296: ISDN Se0/1/0:23 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x00AD

Any idea why this is happening? Running the following IOS:

Cisco IOS Software, 2800 Software (C2800NM-IPVOICE_IVS-M), Version 12.4(15)T3, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2008 by Cisco Systems, Inc.

Compiled Thu 24-Jan-08 15:26 by prod_rel_team

ROM: System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)

1 REPLY
Green

Re: Certain Calls Cannot Complete over QSIG

Mar 13 18:59:12.284: ISDN Se0/1/0:23 Q931: TX -> DISCONNECT pd = 8 callref = 0x00AD

Cause i = 0x82E6 - Recovery on timer expiry

If you check working one

Remote end is never responding with a CALL PROCEEDING you may check with BT switch vendor

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