D-Link DVX-1000 User Manual page 27

Section  - Configuration
Max Calls Supported - Limits the number of simultaneous calls through this gateway if a value is entered or allows
unlimited calls, if the checkbox is selected.
Session Refresh Required - Refreshes the session at regular intervals. The interval is configurable from the Call
server configuration page.
Outbound Proxy Enabled - Check this box if the gateway is connected through an outbound proxy.
IP Address - IP Address of the outbound proxy.
Port - Port number of the outbound proxy.
Registration Required - Check this box if DVX-1000 needs to register with the external gateway. If this box is unchecked,
DVX expects the gateway to register to it. In either case, the SIP User extension, Username and Password configured
below will be used for the registration. i.e. Incoming registrations from the gateway will be authenticated against these
values or Outgoing register requests will be constructed with these values.
SIP User ID - SIP User extension associated with this gateway. This will be used for Authentication.
User Name - SIP display name for the gateway user. This will be used for Authentication.
Password - Specifies the password associated with this gateway. This will be used for authentication.
Note: The SIP User ID, Username and Password configured here should be configured on the gateway for the registrations to work. Please
refer to the User manual of the Gateway for a description on how to do this.
Detecting inactive sessions
Gateway sessions can be refreshed to verify whether they are still active. Selecting 'Session refresh required' will enable
this feature for a gateway. All calls through that gateway will then be refreshed by sending SIP requests at regular intervals.
This interval can be configured from the callserver configuration page. If the gateway or the user agents involved in the
session fail to respond to the session refresh request the call will be torn down. Any activity on the session will reset
the timer for the session refresh request so that the refresh request don't add to network congestion in case there is
heavy traffic.
D-Link DVX-1000 User Manual