Configuring Coder Groups - AudioCodes Mediant 1000 User Manual


To configure the device's coders:
1. Open the Coders page (Configuration tab > VoIP menu > Coders And Profiles
submenu > Coders).
2. From the 'Coder Name' drop-down list, select the required coder.
3. From the 'Packetization Time' drop-down list, select the packetization time (in msec)
for the selected coder. The packetization time determines how many coder payloads
are combined into a single RTP packet.
4. From the 'Rate' drop-down list, select the bit rate (in kbps) for the selected coder.
5. In the 'Payload Type' field, if the payload type (i.e., format of the RTP payload) for the
selected coder is dynamic, enter a value from 0 to 120 (payload types of 'well-known'
coders cannot be modified).
6. From the 'Silence Suppression' drop-down list, enable or disable the silence
suppression option for the selected coder.
7. Repeat steps 2 through 6 for the next optional coders.
8. Click Submit to apply your changes.
9. To save the changes to flash memory, see 'Saving Configuration' on page 482.
16.2

Configuring Coder Groups

The Coder Group Settings page allows you to define up to four groups of coders
(termedCoder Groups). For each Coder Group, you can define up to 10 coders, configured
with packetization time (ptime), rate, payload type, and silence suppression. The first coder
in the Coder Group table is the highest priority coder and is used by the device whenever
possible. If the remote side cannot use the first coder, the device attempts to use the next
coder, and so on.
Coder Groups can be used as follows:

Assigned to Tel Profiles in the Tel Profiles table (see Configuring Tel Profiles on page
217).

Assigned to IP Profiles in the IP Profiles table (see 'Configuring IP Profiles' on page
219).
Notes:
SIP User's Manual
Figure 16-1: Coders Page
•
Each voice coder can appear only once per Coder Group.
•
For a list of supported coders and for configuring coders using the ini file,
refer to the ini file parameter table CodersGroup, described in
'Configuration Parameters Reference' on page 541.
•
For information on coders, refer to the notes in 'Configuring Coders' on
page 215.
216
Mediant 600 & Mediant 1000
Document #: LTRT-83310