Polycom SIP 3.0.2 manual Following voice codecs are supported, These codecs include

Models: SIP 3.0.2

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Configuration Files

Voice Coding Algorithms <codecs/>

The following voice codecs are supported:

 

 

 

 

Sample

 

Effective Audio

Algorithm

MIME Type

Label

Bit Rate

Rate

Frame Size

Bandwidth

 

 

 

 

 

 

 

G.711μ-law

PMCU

G711mu

64 Kbps

8 Ksps

10ms - 80ms

3.5 KHz

 

 

 

 

 

 

 

G.711a-law

PCMA

G711A

64 Kbps

8 Ksps

10ms - 80ms

3.5 KHz

 

 

 

 

 

 

 

G.722

G722/8000

G722

64 Kbps

16 Ksps

10ms - 80ms

7 KHz

 

 

 

 

 

 

 

G.722.1

G722/16000

G7221

16 Kbps,

16 Ksps

20ms - 80ms

7 KHz

 

 

 

24 Kbps,

 

 

 

 

 

 

32 Kbps

 

 

 

 

 

 

 

 

 

 

G.729AB

G729

G729AB

8 Kbps

8 Ksps

10ms - 80ms

3.5 KHz

 

 

 

 

 

 

 

These codecs include:

Codec Preferences <codecPref/>

Codec Profiles <audioProfile/>

Codec Preferences <codecPref/>

 

Permitted

 

 

Attribute

Values

Default

Interpretation

 

 

 

 

voice.codecPref.G711Mu

Null, 1-3

1

Specifies the codec preferences for

 

 

 

SoundPoint IP 320, 330, 430, 500, 501,

voice.codecPref.G711A

 

2

 

600 and 601 platforms.

 

 

 

voice.codecPref.G729AB

 

3

1 = highest

 

 

 

3 = lowest

 

 

 

Null = do not use

 

 

 

Give each codec a unique priority, this will

 

 

 

dictate the order used in SDP negotiations.

 

 

 

 

voice.codecPref.IP_300.G711Mu

Null, 1-3

1

Specifies the codec preferences for

 

 

 

SoundPoint IP 301 models. Interpretation

voice.codecPref.IP_300.G711A

 

2

 

as above.

 

 

 

voice.codecPref.IP_300.G729AB

 

3

 

 

 

 

 

voice.codecPref.IP_650.G711Mu

Null, 1-4

2

Specifies the codec preferences for the

 

 

 

SoundPoint IP 550, 560, and 650 platform.

voice.codecPref.IP_650.G711A

 

3

 

Interpretation as above.

 

 

 

voice.codecPref.IP_650.G729AB

 

4

 

 

 

 

 

voice.codecPref.IP_650.G722

 

1

 

 

 

 

 

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Page 153
Image 153
Polycom SIP 3.0.2 manual Following voice codecs are supported, These codecs include, Codec Preferences codecPref