Polycom SOUNDPOINT SIP 2.2.0 - Manual (Page 146)

Administrator’s Guide SoundPoint IP / SoundStation IP
A - 34
Voice Settings
This configuration attribute is defined as follows:
This attribute includes:
• Voice Coding Algorithms
• Volume Persistence
• Gains
• Acoustic Echo Cancellation
• Acoustic Echo Suppression
• Background Noise Suppression
• Automatic Gain Control
• Receive Equalization
• Transmit Equalization
• Voice Activity Detection
Voice Coding Algorithms
The following voice codecs are supported:
Note Modification of se.rt.modification.enabled and se.rt.x.name parameters
through the user interface will be implemented in a future release.
Attribute
Permitted
Values
Default Interpretation
voice.txPacketFilter 0, 1 Null Flag to determine whether or not narrowband Tx
high-pass filtering should be enabled.
If set to 1, narrowband Tx high-pass filter is
enabled.
If set 0 or Null, no Tx filtering is performed.
Algorithm MIME Type Label Bit Rate
Sample
Rate
Frame Size
Effective Audio
Bandwidth
G.711
μ-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