Polycom SIP 3.0.2 Administrator's Manual page 153

Algorithm MIME Type
G.711μ-law PMCU
G.711a-law PCMA
G.722 G722/8000
G.722.1 G722/16000
G.729AB G729
Attribute
voice.codecPref.G711Mu
voice.codecPref.G711A
voice.codecPref.G729AB
voice.codecPref.IP_300.G711Mu
voice.codecPref.IP_300.G711A
voice.codecPref.IP_300.G729AB
voice.codecPref.IP_650.G711Mu
voice.codecPref.IP_650.G711A
voice.codecPref.IP_650.G729AB
voice.codecPref.IP_650.G722
Voice Coding Algorithms <codecs/>
The following voice codecs are supported:
Label Bit Rate
G711mu 64 Kbps
G711A 64 Kbps
G722 64 Kbps
G7221 16 Kbps,
24 Kbps,
32 Kbps
G729AB 8 Kbps
These codecs include:
• Codec Preferences <codecPref/>
• Codec Profiles <audioProfile/>
Codec Preferences <codecPref/>
Permitted
Values
Null, 1-3
Null, 1-3
Null, 1-4
Sample
Rate Frame Size
8 Ksps 10ms - 80ms
8 Ksps 10ms - 80ms
16 Ksps 10ms - 80ms
16 Ksps 20ms - 80ms
8 Ksps 10ms - 80ms
Default Interpretation
1 Specifies the codec preferences for
SoundPoint IP 320, 330, 430, 500, 501,
2
600 and 601 platforms.
1 = highest
3
3 = lowest
Null = do not use
Give each codec a unique priority, this will
dictate the order used in SDP negotiations.
1 Specifies the codec preferences for
SoundPoint IP 301 models. Interpretation
2
as above.
3
2 Specifies the codec preferences for the
SoundPoint IP 550, 560, and 650 platform.
3
Interpretation as above.
4
1
Configuration Files
Effective Audio
Bandwidth
3.5 KHz
3.5 KHz
7 KHz
7 KHz
3.5 KHz
A - 35