Ip codec set – Avaya POLYCOM 8400-SES User Manual

Page 7

CRK; Reviewed:
SPOC 7/1/2011

Solution & Interoperability Test Lab Application Notes

7 of 21

Polycom8400-SES

5.2. IP Codec Set

This section describes the steps for administering a codec set in Communication Manager. This
codec set is used in the IP network region for communications between Communication
Manager and SIP Enablement Services. Enter the change ip-codec-set command, where c
is a number between 1 and 7, inclusive. IP codec sets are used in Section 5.3 for configuring IP
network region to specify which codec sets may be used within and between network regions.
For the compliance testing, G.711MU, G.729A were tested for verification.

change ip-codec-set 1 Page 1 of 2

IP Codec Set

Codec Set: 1

Audio Silence Frames Packet
Codec Suppression Per Pkt Size(ms)
1: G.711MU n 2 20
2:
3:
4:

To configure a specific codec for Avaya 9600 Series SIP phones, the 46xxsettings.txt file must
be configured. The following shows the CODEC SETTINGS section in the 46xxsettings.txt
file that needs to be modified.

.
.
.
##################### CODEC SETTINGS #####################
##
## G.711a Codec Enabled
## Determines whether G.711 a-law codec is available on
## the phone.
## 0 for No
## 1 for Yes
## SET ENABLE_G711A 1

(This shows the default)

##
##Added the following statement:

SET ENABLE_G711A 0

##
## G.711u Codec Enabled
## Determines whether G.711 mu-law codec is available on
## the phone.
## 0 for No
## 1 for Yes
## SET ENABLE_G711U 1
##
##
## G.729 Codec Enabled
## Determines whether G.729 codec is available on the
## phone.
## 0 for G.729(A) disabled
## 1 for G.729(A) enabled without Annex B support
## 2 for G.729(A) enabled with Annex B support
## SET ENABLE_G729 1
##