Configuring Codecs - Auerswald COMpact 3000 analog Operating Manual

Settings
VoIP

Configuring Codecs

Configuring Codecs
The PBX provides various codecs. Codec selection affects the quality of a VoIP call. Depending
on the connection bandwidth, codecs with the best possible VoIP call quality down to codecs
with high compression (low bandwidth) can be configured.
The codec actually used for a call is not specified until the codec is negotiated with the VoIP
provider.
Note:
If using a codec with high bandwidth (e.g., G.711) produces too much inter-
ference in the call quality, it is possible that the connection bandwidth is not
sufficient. If disturbances occur often, it is a good idea to only select codecs
with lower bandwidth in the priority list (Sequence for Codec negotiation).
Not every codec is supported by every provider.
Configuration can be carried out as follows:
• Separately for VoIP providers
• Via the configuration manager
Requirements:
– External VoIP channel (COMpact 3000 VoIP or VoIP channels purchased and activated in
the Upgrade Center)
– Configuration manager, opened with sufficient authorisation
1. Open the page CONFIGURATION > Voice over IP (VoIP) > VoIP provider.
2. Click in the line of the corresponding VoIP provider.
The Provider configuration opens.
3. Open the page Provider configuration > T.38 and Codec.
The available codecs are displayed under Codecs. The pre-configured priority list is
displayed under Sequence for Codec negotiation .
4. Click one of the following buttons, if necessary:
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COMpact 3000 analog/ISDN/VoIP - Firmware V4.0 - Operating Manual V06 12/2020