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C o m m u n i c a t i o n s , I n c .
Local SIP Port
Local RTP Port
Register expiration
Keep alive interval
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Fig 5.2.5 Advanced Protocol Settings
Fill in the local port registered with SIP server. The phone will
send and receive SIP messages from this port. The default value
is 5060.
Fill in the local port to send and receive for RTP. This is an even
number between 1024 and 65535. The default value is 6000.
Set the interval of refreshing registration with SIP Proxy Server in
seconds. The minimum value is 10s, maximum value is 65535s.
Default is 60s.
This parameter specifies how often the phone sends a dummy
UDP packet to the SIP server in order to keep the port mapping
on the NAT device active. Default is 20 seconds.
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