Codec Registration - Avaya Nortel Communication Server 1000 Manual

Select any two, any one, or none of the G.729A, and G.723.1 codecs. If the
G.729A codec is selected, the payload size and the jitter buffer settings can
be changed. If the G.723.1 codec is selected, only the jitter buffer can be
changed, as the only supported payload size is 30 msec.
For codec configuration in Element Manager, see
Profile data" (page

Codec registration

After the configuration of codecs is complete, the IP Phones and DSPs have
to register the configured codecs with the Call Server.
Codec registration for IP Phones
The IP Phones always register both the G.711 a-law and mu-law codecs, as
well as all codec configured by the user. The codecs that can be configured
by the user are G.729A, G.729AB, and G.723.1.
The minimum number of codecs registered for an IP Phone is two: G.711
a-law and G.711 mu-law (G.711 is always configured).
The maximum number of codecs registered for an IP Phone is five: G.711
a-law, G.711 mu-law, G729A, G729AB, and G.723.1.
IP Phones do not register the fax codecs (T.38 and G.711 Clear Channel).
Example 1
A user configures a G.711 mu-law codec (with a 30 msec payload) and a
G.723.1 codec (with a 30 msec payload).
The following three codecs are actually registered:
1. G.711 mu-law (30 msec)
2. G.711 a-law (30 msec)
3. G.723.1 (30 msec)
Example 2
A user configures four codecs:
1. G.711 a-law codec with a 10 msec payload
2. G.729A codec with 50 msec payload
3. G.729AB codec with 30 msec payload
4. G.723.1 codec with a 30 msec payload
Copyright © 2003–2008, Nortel Networks
.
285).
ATTENTION
Nortel Communication Server 1000
IP Line Fundamentals
NN43100-500 02.02 Standard
Release 5.5 4 February 2008
Codec registration 219
"Configure Voice Gateway