Network Call Trace; Enhanced Trace Command Output; Configure Network Call Trace - Avaya CS 1000 Maintenance Manual

Quick reference to PRI operations

Network Call Trace

Network Call Trace (NCT) is available to trace a network call and to diagnose network
problems. When a network call is blocked, trace data is output indicating the reason the call
was blocked and the software procedure responsible.
A network call can be traced by dialing a Special Prefix (SPRE) code and the NCT feature
code (9912) before the network number. When this is done, call setup and status information
is output to the system terminal as the call tandems through the network. The trace information
is output to all the system terminals designated in LD 17 as ADAN = TTY and USER = MTC.
NCT provides useful information such as the following:
• the route used
• the facility accessed
• the routing control imposed
• the call-blocked location
There are two Network Call Trace functions: 01 and 02. They output different information as
shown in the following sections.

Enhanced Trace command output

A time stamp is available to the call trace output. This time stamp appears on the first line of
the output.
The Terminal Number (TN) or digital trunk prints out only when there has been a change to
the call register. The TN or trunk is printed only once.
Sample time stamp output which appears on the first line:
.14:00:02 12/25/1992

Configure Network Call Trace

To configure Network Call Trace, log into the system and do the following:
• Enter NCT in response to prompt RCAP in LD 17 for each D-channel.
• Enter CLTA in response to prompt CLS in LD 10 or LD 11 to allow a telephone to trace
calls.
34 ISDN Primary Rate Interface Maintenance
Comments? infodev@avaya.com
November 2011