Advance VoIP Setup 
 
 
DTMF Settings: Select between RFC2833 or inbound. 
DTMF Relay PT: Enter the RTP port Relay number for the connection. Default is 97 
Begin RTP Port: Enter the RTP port begin number for the connection. Default is 4000 
Jitter Buffer: Select between Auto or Fixup 
Min: Enter the minimum jitter time in miliseconds 
Max: Enter the maximum jitter time in miliseconds 
Media Negotiatory: Select between remote or local negotiation. Default is set to 
Remote side. 
 
Connection 1 
 
Echo Cancellation: Echo cancellation eliminates the echo affect from sound on both 
parties. It is best to have this enabled to improve the voice quality. 
VAD: Select this option to enable Voice Activation Detection. Default is un-ticked 
Send Gain: Change the value of gain send via mic piece of handset. 
Receive Gain: Change the value of gain received via ear piece of handset.