Yealink SIP-T54S Administrator's Manual page 911

Details of Configuration Parameters:
Parameters
voice.jib.adaptive
Description:
Configures the type of jitter buffer in the wired network.
0-Fixed
1-Adaptive
Web User Interface:
Settings->Voice->JITTER BUFFER->Type
Phone User Interface:
None
voice.jib.min
Description:
Configures the minimum delay time (in milliseconds) of jitter buffer in the wired network.
Note: It works only if the value of the parameter "voice.jib.adaptive" is set to 1 (Adaptive).
Web User Interface:
Settings->Voice->JITTER BUFFER->Min Delay
Phone User Interface:
None
voice.jib.max
Description:
Configures the maximum delay time (in milliseconds) of jitter buffer in the wired network.
Note: It works only if the value of the parameter "voice.jib.adaptive" is set to 1 (Adaptive).
Web User Interface:
Settings->Voice->JITTER BUFFER->Max Delay
Phone User Interface:
None
voice.jib.normal
Description:
Configures the normal delay time (in milliseconds) of jitter buffer in the wired network.
Configuring Audio Features
Permitted Values
0 or 1
Integer from 0 to 400
Integer from 0 to 400
Integer from 0 to 400
Default
1
60
240
120
885