LevelOne 4100 User Manual

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 SIP Extensions 
 
 
1.  Support PRACK method: enable SIP PRACK support. 
2.  Encode SIP URI with user parameter: encode user=phone parameter in 
SIP URI. 
3.  Send INVITE with Timer header: encode Timer header in all INVITE 
requests for ringing timeout 
4.  SIP session timer: enable SIP session timer function. 
5.  Conditional Call Forwarding Timer: Forward the call to the pre-configured 
number if the phone does not pick up within the timer. 
6. Disable Call Waiting: disable the call waiting tone. 
7.  Disable Caller-ID display: disable the caller-id display of incoming calls. 
8.  Call Hold using C=0.0.0.0: using the call hold method described in 
RFC2543. If unchecked, the call hold would follow RFC3263 method 
9. Send NOTIFY: send out NOTIFY request to transferor for unattended and 
attended call transfer.