Line Coding - Avaya Communication Manager Administrator's Manual

Interworking Message
This field determines what message the server sends when an incoming ISDN trunk call
interworks (is routed over a non-ISDN trunk group).
Valid entries
PROGress
ALERTing
ITN-C7 Long Timers
This field controls the T302 and T303 timers. It only appears if the Signaling Mode field is
isdn-pri.
Valid entries
y
n

Line Coding

This field selects the type of line coding used on this facility. The setting in this field must match
the setting on the far-end of the link, or you must have an intervening CSU to convert the line
coding protocols. Voice calls will work even if line coding does not match, but a single data call
will bring down the DS1 facility. For the TTC 2Mb CMI Trunk circuit pack, this is a display-only
field showing cmi (coded mark inversion).
The following information is for reference. Talk with your network service provider or your Avaya
technical support representative to find the appropriate protocol for your application.
!
CAUTION:
If you change this field, you must busy out the DS1 circuit pack. You must also
CAUTION:
change the following screens: Route-Pattern, Access Endpoint, PRI Endpoint,
Signaling-Group, and Trunk-Group.
Usage
Normally select this value. PROGress asks the public
network to cut through the B-channel and let the caller
hear tones such as ringback or busy tone provided over
the non-ISDN trunk.
ALERTing causes the public network in many countries
to play ringback tone to the caller. Select this value only
if the DS1 is connected to the public network, and it is
determined that callers hear silence (rather than
ringback or busy tone) when a call incoming over the
DS1 interworks to a non-ISDN trunk.
Usage
Use if you want to increase the length of the long timers.
Leave n if you want to use the default long timers.
DS1 Circuit Pack
Issue 1 June 2005 887