D-Link DVG-7022S User Manual page 32

DVG-7022S/7044S/7062 User's Manual
Proxy Server IP/Domain: Enter the Proxy Server IP address or URL (Uniform Resource Locator).
Proxy Server Port: Enter the Proxy Server listen port number. (The default value is 5060)
Proxy Server Realm: This variable is used for gateway SIP account authentication in a SIP server. In
most cases, the gateway can automatically detect your SIP server realm. So you can leave this option
blank. However, if your SIP server requires you to use a specific realm you can manually enter it here. If
you fail to make a call, please contact your VoIP service provider.
TTL (Registration interval) [10-7200 s]: Enter the desired time interval at which the gateway will report
to your Proxy Server.
SIP Domain/Use Domain to Register: Enter the correct SIP domain to avoid registration failure (it is not
necessary to set this with some Proxy Servers). If you enable "Uses Domain to Register" the VoIP
gateway will register to the proxy with the domain name you filed. Otherwise the VoIP Gateway will
register to a Proxy with the IP it resolves. If you fail to make a call, please contact your VoIP service
provider.
VoIP failure announcement: As soon as the registration to proxy server is failed, the gateway will drive
IVR system to play out failure announcements for the caller.
Bind Proxy Interval for NAT: This function is able to keep the binding that exists when the VoIP gateway
is behind a NAT and SIP Proxy is not able to keep the binding.
Initial Unregister: After rebooting, the gateway is initially unregistered and then it will perform a general
register process.
Support Message Waiting Indication: The system will play a tone to remind users that there are
messages in the SIP Server.
MWI Subscribe Interval: The subscribe interval is for the gateway check of the voice mail.
Outbound Proxy Support：An outbound proxy server handles SIP call signaling as a standard SIP proxy
server would. Further, it receives and transmits phone conversation traffic (media) between two
communication parties. This option tells the gateway to send and receive all SIP packets to the destined
outbound proxy server rather than the remote gateway. This helps VoIP calls to pass through any NAT
protected network without additional settings or techniques. Please make sure your VoIP service provider
supports outbound proxy services before you enable it.
Session Expiration: This variable is used to avoid billing for abnormally dropped calls due to Internet
problems. The default is disabled.
Session Refresh Request: Used to resend UPDATE or re-INVITE requests to the Server.
Session Refresher: Selects which user agent is the session refresher. UAS (User Agent Server) is an
originator, and UAC (User Agent Client) is a replier.
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SIP
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