3Com NBX 100 Administrator's Manual - page 39
Audio Settings
39
Custom Audio
For custom audio that you determine based on the needs of your site,
you can choose the list order:
For the audio settings that are configured on each device, 3Com provides
sorted lists such as these. Each list contains the codecs supported for that
device only.
For example, a default codec configuration list for a 3Com Business
Telephone (that is, sorted by audio quality) might show a codec
configuration list like the following:
If you have set device options for a low bandwidth connection, then the
3Com Business Telephone codec configuration list might show:
G.722.2
best quality
medium bandwidth
ADPCM
low quality
medium bandwidth
G.722
high quality
high bandwidth
G.711
good quality
high bandwidth
Table 10 Default Order List Based on Bandwidth
Codec
Quality
Bandwidth
G.729
medium quality
low bandwidth
G.722.2
best quality
medium bandwidth
ADPCM
low quality
medium bandwidth
G.722.2LB
good quality
low bandwidth
G.722
high quality
high bandwidth
G.711
good quality
high bandwidth
G711
good Q
high BW
ADPCM
low Q
med BW
ADPCM
low Q
med BW
G711
good Q
high BW
Table 9 Default Order List Based on Bandwidth Usage
Codec
Quality
Bandwidth