[cisco-voip] PRI between CCM (3725) and Nortel M1

[Kevin Thorngren]

Typically this type of behavior is seen when the Extension Bit is set  
to 1 but should be set to 0 per DMS-100.

As Ryan stated earlier the Nortel is disconnecting the calls.  I'm not  
familiar with Nortel gear but are there debugs on the Nortel side you  
can look at to see why the calls are being disconnected?

Is it expecting the Extension Bit to be 1 or 0?

The " isdn channel-id invert extended" command was introduced in 12.2  
but it doesn't appear it is in the version you are running:
http://www.cisco.com/en/US/products/sw/iosswrel/ps1839/ 
products_command_reference_chapter09186a008010b000.html#wp1138159

Kevin

On Dec 29, 2005, at 9:32 AM, Sullivan,Gary,GREENWICH,Information  
Services wrote:

> Yes using DMS-100 and have that check all ready.
>> -----Original Message-----
>> From: Kevin Thorngren [mailto:kthorngr at cisco.com]
>> Sent: Thursday, December 29, 2005 8:39 AM
>> To: Sullivan,Gary,GREENWICH,Information Services
>> Cc: cisco-voip at puck.nether.net
>> Subject: Re: [cisco-voip] PRI between CCM (3725) and Nortel M1
>>
>> Are you using DMS-100 Protocol? If so, I believe you need to place a  
>> check mark in the "MCDN Channel Number Extension Bit Set to Zero"  
>> option in the CCM GW configuration.
>>
>> Let us know if this helps.
>>
>> Kevin
>> On Dec 29, 2005, at 8:13 AM, Sullivan, Gary, GREENWICH, Information  
>> Services wrote:
>>
>>> We have a PRI between are CCM and Nortel M1 pbx. Was working fine  
>>> until we upgraded.
>>> We upgraded are CCM from 3.3.4 to 4.1.3 . Now we can't make any  
>>> calls. the D-channel is established.
>>> but when I try to make a call from my IP phone it disconnects right  
>>> away. when I call from Nortel to IP
>>> it rings once then disconnects. I did a debug isdn q931 and see the  
>>> Messages.
>>> Any help is appreciated
>>>
>>>
>>> ec 20 09:41:28.853: ISDN Se2/0:23 Q931: TX -> SETUP pd = 8  callref  
>>> = 0x0001
>>>         Bearer Capability i = 0x8090A2
>>>                 Standard = CCITT
>>>                 Transer Capability = Speech 
>>>                 Transfer Mode = Circuit
>>>                 Transfer Rate = 64 kbit/s
>>>         Channel ID i = 0xA98381
>>>                 Exclusive, Channel 1
>>>         Display i = 0xB1, 'Gary Sullivan'
>>>         Calling Party Number i = 0x0081, '3102'
>>>                 Plan:Unknown, Type:Unknown
>>>         Called Party Number i = 0x80, '0400'
>>>                 Plan:Unknown, Type:Unknown
>>>
>>> 81
>>>         Cause i = 0x81B6 - Incoming calls are barred
>>> GCTRT03#
>>> GCTRT03#
>>> GCTRT03#
>>> GCTRT03#
>>> GCTRT03#
>>> Dec 20 09:41:38.894: ISDN Se2/0:23 Q931: RX <- SETUP pd = 8  callref  
>>> = 0x17
>>>         Bearer Capability i = 0x8090A2
>>>                 Standard = CCITT
>>>                 Transer Capability = Speech 
>>>                 Transfer Mode = Circuit
>>>                 Transfer Rate = 64 kbit/s
>>>         Channel ID i = 0xE9808317
>>>                 Exclusive, Interface 0, Channel 23
>>>         Display i = 0xB1, 'GARY SULLIVAN'
>>>         Calling Party Number i = 0x0980, '0543'
>>>                 Plan:Private, Type:Unknown
>>>         Called Party Number i = 0x89, '3102'
>>>                 Plan:Private, Type:Unknown
>>>
>>>
>>>         Channel ID i = 0xA98397
>>>                 Exclusive, Channel 23
>>> Dec 20 09:41:39.206: ISDN Se2/0:23 Q931: TX -> ALERTING pd = 8   
>>> callref = 0x97
>>> Dec 20 09:41:39.210: ISDN Se2/0:23 Q931: TX -> NOTIFY pd = 8   
>>> callref = 0x97
>>>         Connected Address i = 0x80, '3102'
>>>         Notification Ind i = 0xF1
>>>         Display i = 0xB2, 'Gary Sullivan'
>>> Dec 20 09:41:39.222: ISDN Se2/0:23 Q931: RX <- RELEASE pd = 8   
>>> callref = 0x17
>>>         Cause i = 0x81E4 - Invalid information element contents
>>> Dec 20 09:41:39.230: ISDN Se2/0:23 Q931: RX <- RELEASE pd = 8   
>>> callref = 0x17
>>>         Cause i = 0x81E0 - Mandatory information element missing
>>>
>>> _______________________________________________
>>> cisco-voip mailing list
>>> cisco-voip at puck.nether.net
>>> https://puck.nether.net/mailman/listinfo/cisco-voip
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