D-Link DVG-6004S User Manual page 31

DVG-6004S User's Manual
General Settings → SIP Advanced
Session Expiration: This field will set the time that the VoIP Gateway will allow a SIP session to remain die
(without traffic) before dropping it.
Session Refresh Request: Select UPDATE or re-INVITE to send refresh requests to the Server.
Session Refresher: This determines which side of an expired call session will initiate the session refresh.
uac – specifies that the Caller side will initiate the session refresh. uas – specifies that the Call receiver (the
"Callee") will initiate the session refresh.
General Settings → SIP Advanced
SIP Message Resend Timer Base: Select the resend timer base from the drop-down menu if response is
not received within the base time. The sequence of sending is like "base time" * 2, and send again at "base
time" *2 *2. The maximum resend time is four seconds. Resend action will stop when the total resend time
has reached 20 seconds.
Max. Response Time for Invite: Enter the maximum response time for INVITE packet. When the
destination does not reply within the set time, the call is failed.
General Settings → SIP Advanced
VoIP failure announcement: Check the box to play a voice announcement if the VoIP Gateway fails to
register to the SIP proxy server while FXO is off-hook.
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VoIP Gateway Configuration