Configure Used Codec For An Isoip Connection - Patton electronics SmartNode Series Software Configuration Manual

29 • Gateway configuration
Note There is no right CODEC. The choice of what compression scheme to use
depends on what parameters are more important for a specific installation.
In practice, G.723 and G.729 are more popular than G.726 and G.728. For
an overview of used codecs in SmartWare see appendix D,
available voice codecs in SmartWare"
Configure used codec for an ISoIP connection
The codec used for an ISoIP connection could be set in the ISoIP gateway as well as in the CS interface as fol-
lows. In the ISoIP gateway a default codec is set. If you do not specify a codec in the ISoIP interface, the
default codec specified in the ISoIP gateway will be used. Otherwise the codec specified in the ISoIP gateway
will be replaced by the codec specified in the ISoIP interface. In the same way it is possible to specify the packet
size of the transmitted voice packets.
This procedure describes how to configure the used codec for an ISoIP connection
Mode: Gateway ISoIP
Step
1 node (gw-isoip)[isoip]#codec <tab>
2 node (gw-isoip)[isoip]#codec codec [packet-
length]
3 node (gw-isoip)[isoip]#exit
4 node (cfg)#context cs
5 node (ctx-cs)[switch]#interface isoip if-
name
6 node (if-isoip)[if-name]#codec <tab>
7 node (if-isoip)[if-name]#codec codec
[packet-length]
Example: Selecting an ISoIP codec
The following example shows how to use the g711Alaw64k (64 kbps) codec as default voice codec for the
ISoIP gateway with 20 ms for the length of transmitted RTP packets.
SN>enable
SN#configure
SN(cfg) #gateway isoip ISOIP
SN(gw-isoip)[isoip]#codec g711alaw64k 20
Note It is recommended not to use the codec Netcoder because of its inferior voice
quality. The codec Netcoder does not work with SmartNode 1200 at all.
362
Command
SmartWare Software Configuration Guide
"Used IP ports &
on page 445.
Purpose
List all available codecs on the ISoIP gateway
Specify the default codec and the packet size of
the transmitted voice packet for all calls over the
ISoIP gateway.
Optional:
Only if necessary: Change to interface configura-
tion mode to overwrite the default codec for an
interface
List all available codecs on the ISoIP interface
Overwrite the default codec specified in the ISoIP
gateway for this ISoIP interface with codec codec .
Gateway configuration task list