Use the navigation keys to highlight the desired entry in the 
Enabled/Disable Codes list, and press the   /   to move to the 
other list. 
The type of Jitter Buffer is Adaptive or Fixed, default is adaptive. 
The min. delay range setting, default is 60. 
The max. delay range setting, default is 150. 
The normal delay range setting, default is 120. 
The payload length setting, default is 30 ms. 
Enable/Disable High Rate of G723.1 feature. 
Enable/Disable VAD feature. 
Enable/Disable Echo Suppression Mode feature. 
Enable/Disable Side Tone feature. 
Line is the default value. 
You can use this key feature to speed up dialing numbers that are often 
used or hard to remember. 
You can use this key feature to speed up dialing a specific prefix number. 
You can use this key feature to send arbitrary key sequences via DTMF. 
You can use the BLF (Busy Line Field) feature to monitor a specific user for 
status changes on the phone. 
You can use multicast paging to forward time sensitive announcements 
out to people within the multicast group.