Polycom SIP 2.2.0 사용자 설명서
Configuration Files
A - 35
These codecs include:
•
•
Codec Preferences <codecPref/>
G.722
G722/8000
G722
64 Kbps
16 Ksps
10ms - 80ms
7 KHz
G.722.1
G722/16000
G7221
16 Kbps,
24 Kbps,
32 Kbps
24 Kbps,
32 Kbps
16 Ksps
20ms - 80ms
7 KHz
G.729AB
G729
G729AB
8 Kbps
8 Ksps
10ms - 80ms
3.5 KHz
Algorithm
MIME Type
Label
Bit Rate
Sample
Rate
Rate
Frame Size
Effective Audio
Bandwidth
Bandwidth
Attribute
Permitted
Values
Values
Default
Interpretation
voice.codecPref.G711Mu
Null, 1-3
1
Specifies the codec preferences for
SoundPoint IP 320, 330, 430, 500, 501,
600 and 601 platforms.
SoundPoint IP 320, 330, 430, 500, 501,
600 and 601 platforms.
1 = highest
3 = lowest
Null = do not use
3 = lowest
Null = do not use
Give each codec a unique priority, this will
dictate the order used in SDP negotiations.
dictate the order used in SDP negotiations.
voice.codecPref.G711A
2
voice.codecPref.G729AB
3
voice.codecPref.IP_300.G711Mu
Null, 1-3
1
Specifies the codec preferences for
SoundPoint IP 301 models. Interpretation
as above.
SoundPoint IP 301 models. Interpretation
as above.
voice.codecPref.IP_300.G711A
2
voice.codecPref.IP_300.G729AB
3
voice.codecPref.IP_650.G711Mu
Null, 1-4
2
Specifies the codec preferences for the
SoundPoint IP 550 and 650 platform.
Interpretation as above.
SoundPoint IP 550 and 650 platform.
Interpretation as above.
voice.codecPref.IP_650.G711A
3
voice.codecPref.IP_650.G729AB
4
voice.codecPref.IP_650.G722
1
voice.codecPref.IP_4000.G711Mu
Null, 1-3
1
Specifies the codec preferences for the
SoundStation IP 4000 platform.
Interpretation as above.
SoundStation IP 4000 platform.
Interpretation as above.
voice.codecPref.IP_4000.G711A
2
voice.codecPref.IP_4000.G729AB
Null
Not supported by default so that G.711Mu
and G.711A local conferences can be
supported.
and G.711A local conferences can be
supported.