Polycom Version 1.4.x 17 Administrator's Manual page 87

Administrator Guide - SoundPoint
4.6.1.6.1.1 Codec Preferences <preferences/>
Attribute
voice.codecPref.G711Mu
voice.codecPref.G711A
voice.codecPref.G729AB
voice.codecPref.IP_4000.G711Mu
voice.codecPref.IP_4000.G711A
voice.codecPref.IP_4000.G729AB
4.6.1.6.1.2 Codec Profiles <profiles/>
The following profile attributes can be adjusted for each of the three supported codecs.
In the table, x=G711Mu, G711A, or G729AB.
Attribute
voice.audioProfile.x.payloadSize
® ®
IP / SoundStation IP
Permitted
Values
Null, 1-3
Null, 1-3
Permitted
Values
10, 20, 30,
...80
Copyright © 2004 Polycom, Inc
Default Interpretation
1 Specifies the codec preferences for
®
SoundPoint IP platforms.
2
1=highest
3
3=lowest
Null=do not use
Give each codec a unique priority,
this will dictate the order used in
SDP negotiations.
Note: If less than two codecs are
specified, the phone will automati-
cally use G711Mu and G711A with
default parameters.
1 Specifies the codec preferences for
the SoundStation
2
Interpretation as above.
Null Not supported by default so that
G.711Mu and G.711A local confer-
ences can be supported. This restric-
tion will be removed in a future
release.
Interpretation
Preferred Tx payload size in millisec-
onds to be provided in SDP offers and
used in the absence of ptime negotia-
tions. This is also the range of supported
Rx payload sizes.
Optimization
®
IP 4000 platform.
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