Cause value 82

Last Updated : Oct 15, 2014 |
[0x52/0xD2]

Identified channel does not exist

Cause

The equipment sending this cause value receives a SETUP request to use an inactive channel for this interface for a call. For example, when a user has subscribed to those channels on a primary rate interface numbered 1 to 12, and the user equipment or network attempts to use one of the channels numbered 13 to 23, this cause value is generated.

This cause value has local significance only. The ISDN network between the user and the equipment generating the cause value sends:

  • A no-cause indication through the network

  • A more generic Cause Value through the network

Proposed Solution

Procedure

  1. Check the diagnostic information (DIAG) for the channel number of the non-existent channel. See Event data 2.
  2. Check Communication Manager administration (network generated the cause value).
    1. Communication Manager has B-channels assigned off a T1/E1 to a trunk group that are not available for service from the remote end. Contact the ISDN service provider to find out which B-channels can be used.
  3. Communication Manager administration that can affect sending this cause value:
    1. Communication Manager has not assigned B-channels to an available trunk group which is trying to request a call on one of the B-channels. Check which channel is requested and if possible assign it into the appropriate trunk group. If the channel requested is the 24th (T1) or 16th (E1) channel, it has been incorrectly programmed as isdn-pri on the DS1 screen instead of isdn-ext.