Qsig Nortel Callmanager 4.2.3sr1

Unanswered Question
Mar 26th, 2007

A customer has a integration with nortel and CM (qsig). When they play a call to the nortel and no voice is present. How to troubleshoot this problem.

Troubeleshooting:

rtr_telephony_1#term mon

rtr_telephony_1#un all

All possible debugging has been turned off

rtr_telephony_1#debug isdn q93

debug isdn q931 is ON.

rtr_telephony_1#

000104: *Mar 20 08:46:02.491 PCTime: ISDN Se0/3/0:15 Q931: RX <- SETUP pd = 8 c

allref = 0x1900

Bearer Capability i = 0x8090A3

Standard = CCITT

Transfer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA98399

Exclusive, Channel 25

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

Calling Party Number i = 0x4980, '1579'

Plan:Private, Type:Subscriber(local)

Called Party Number i = 0xC9, '3202'

Plan:Private, Type:Subscriber(local)

Sending Complete

Locking Shift to Codeset 5

Codeset 5 IE 0x31 i = 0x80

Codeset 5 IE 0x32 i = 0x81

rtr_telephony_1#

000105: *Mar 20 08:46:02.527 PCTime: ISDN Se0/3/0:15 Q931: TX -> CALL_PROC pd =

8 callref = 0x9900

Channel ID i = 0xA98399

Exclusive, Channel 25

000106: *Mar 20 08:46:02.527 PCTime: ISDN Se0/3/0:15 Q931: TX -> ALERTING pd = 8

callref = 0x9900

Progress Ind i = 0x8088 - In-band info or appropriate now available

rtr_telephony_1#

000107: *Mar 20 08:46:04.015 PCTime: ISDN Se0/3/0:15 Q931: TX -> CONNECT pd = 8

callref = 0x9900

Facility i = 0x91AA06800100820100A113020102020102800B43656573204265696A6

572

Connected Number i = 0x0081, '3202'

000108: *Mar 20 08:46:04.051 PCTime: ISDN Se0/3/0:15 Q931: RX <- CONNECT_ACK pd

= 8 callref = 0x1900

rtr_telephony_1#

000109: *Mar 20 08:46:11.507 PCTime: ISDN Se0/3/0:15 Q931: TX -> DISCONNECT pd =

8 callref = 0x9900

Cause i = 0x8090 - Normal call clearing

000110: *Mar 20 08:46:11.535 PCTime: ISDN Se0/3/0:15 Q931: RX <- RELEASE pd = 8

callref = 0x1900

000111: *Mar 20 08:46:11.547 PCTime: ISDN Se0/3/0:15 Q931: TX -> RELEASE_COMP pd

= 8 callref = 0x9900

rtr_telephony_1#un all

All possible debugging has been turned off

rtr_telephony_1#sh ccm

MGCP Domain Name: rtr_telephony_1.global.net

Priority Status Host

============================================================

Primary Registered 10.1.30.135

First Backup None

Second Backup None

Current active Call Manager: 10.1.30.135

Backhaul/Redundant link port: 2428

Failover Interval: 30 seconds

Keepalive Interval: 15 seconds

Last keepalive sent: 08:46:27 PCTime Mar 20 2007 (elapsed time: 00:00

:10)

Last MGCP traffic time: 08:46:27 PCTime Mar 20 2007 (elapsed time: 00:00

:10)

Last failover time: None

Last switchback time: None

Switchback mode: Graceful

MGCP Fallback mode: Enabled/OFF

Last MGCP Fallback start time: None

Last MGCP Fallback end time: None

MGCP Download Tones: Disabled

Backhaul Link info:

Link Protocol: TCP

Remote Port Number: 2428

Remote IP Address: 10.1.30.135

Current Link State: OPEN

Statistics:

Packets recvd: 11

Recv failures: 0

Packets xmitted: 9

Xmit failures: 0

PRI Ports being backhauled:

Slot 0, VIC 3, port 1

Slot 0, VIC 3, port 0

Configuration Error History:

FAX mode: cisco

rtr_telephony_1#

======================

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msolak Mon, 03/26/2007 - 04:31

sebastian,

seems to be a problem with "channel selection order" at the ccm gateway configuration. I think it should be "bottom up" on the callmanager side.

regards

mehmet

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