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DVG-5008SG User’s Manual VoIP Gateway Configuration

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General Settings Ш 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 – speci¿es that the Caller side will initiate the session refresh. UAS – speci¿es that the Call receiver

(the “Callee”) will initiate the session refresh.

General Settings Ш 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 Ш SIP Advanced

VoIP failure announcement: Check the box to play a voice announcement if the VoIP Gateway fails to