Avaya Communication Manager Administrator's Manual page 478

Managing Trunks
More information
T1 recommended settings
The table below shows recommended settings for standard T1 connections to your local
exchange carrier.
If you use b8zs line coding and esf framing, it will be easier to upgrade your T1 facility to ISDN
should you want to. You can upgrade without reconfiguring external channel service units, and
your service provider won't have to reconfigure your network connection.
E1 recommended settings
DS1 administration for E1 service varies from country to country. See your local Avaya technical
support representative for more information.
Note:
Remember that the central office serving your switching system might be
Note:
emulating another country's network protocol. If so, you'll have to administer your
circuit packs and trunk groups to match the protocol used by your central office.
Enhanced DS1 administration
Normally, you can't change the DS1 Circuit Pack screen unless you remove all related trunks
from their trunk group. However, if the DS1 MSP field on the System-Parameters
Customer-Options screen is y, and you are assigned the associated login permissions, you
can change some of the fields on the DS1 Circuit Pack screen without removing the related
trunks from their trunk group.
478 Administrator Guide for Avaya Communication Manager
Field Value
Line Coding b8zs
Signaling robbed-bit
Mode
Framing esf
Notes
Use ami-zcs if b8zs is not
available.
Robbed-bit signaling gives
you 56K bandwidth per
channel. If you need a 64K
clear channel for applications
like asynchronous data
transmission or remote
administration access, use
common channel signaling.
Use d4 if esf is not available.