D-Link DVG-5121SP User Manual page 49

SIP Setting
Session Timer- It is to avoid the billing of abnormal dropping the call because of Internet. The default is disabled.
Default: 1800 seconds
Media Port Start- Type the beginning of the listening port range
Media Port End- Type the end of the listening port range
RTCP Port- is mainly used to feed the streaming server with reception statistics from the client. The server may then
decide to use these statistics (such as the numbers of lost packets, the delay from reception, ) to adapt
its strategy. Default : 5060
Transport- Choose UDP or TCP
SIP Time Interval- Enter the desired time interval which the VoIP telephone adapter will report to Proxy Server
SIP refresh time- Enter the desired refresh time which the VoIP telephone adapter will refresh status to Proxy
Server. Default: 500
Timeout for Invite- Time for server invite the clients to connect. Default: 12
Timeout for Release- Set the VoIP telephone adapter respond releasing time from server. Default: 4
Regisitration Retry Count- Retry Count timing. Default: 65535
Registration Retry Interval- Time between per retry connection. Default: 30
PING Interval- Time between ping packet. Default: 0
SIP User Agent Name- Default: VOIP_Agent_001
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DVG-5121SP User's Manual
D-Link Corporation