Altigen ACM 6.5 Administration Manual page 358

Setting VoIP Codec Profiles
Name the new profile, and click OK.
Make your changes or additions, and click Apply. These are the fields in the Codec
configuration window:
Parameter
Codec Profile Table
Name
Codec
G.711/G.723/G.729
Silence Suppression
344
MAXCS ACM 6.5 Administration Manual
Description
Lists codec profiles by name. Select a profile in the
table to modify its settings, then click Apply in the
panel where you made the changes.
Click the Add button to add a codec profile. Click the
Remove button to remove the selected profile. You
cannot remove the Default profile.
Name of the codec profile. You can modify the name,
and click Apply. The Default profile name cannot be
changed.
There are several options:
• G.711 Mu-Law
• Prefer G.723.1, support G.729
• Prefer G.729, support G.723.1
• G.711 A-Law
• Prefer G.711 Mu-Law, support G.711 A-Law
• Prefer G.711 A-Law, support G.711 Mu-Law
G.711 provides toll quality digital voice encoding,
and G.723 and G.729 use low rate audio encoding
to provide near toll quality performance under clean
channel conditions.
When silence suppression is enabled, and silence is
detected during a call, MAXCS stops sending packets
to the other side. This decreases the bandwidth
requirement, however the voice quality may be
degraded slightly. These are system-wide settings.