D-Link DVG-2101SP User Manual page 24

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SIP Setting

This page allows you to configure the settings related to the SIP service provider. You need to configure your

VoIP Adapter to communicate with the devices that will send and receive telephone calls over the Internet.

If you are behind a NAT modem or router, you may have to use a STUN server.

Signaling Port

RTP Start

RTP End

STUN

Server Address

NAT Keep Alive Time

Rport

T.38 Fax Protocol

P_Assert

Enter the signaling port to send and receive SIP message for building a session.

The default value is 5060 and this must match with the peer Registrar when

making VoIP calls.

Specifies the start port for RTP stream. The default value is 40000.

Specifies the end port for RTP stream. The default value is 50000.

Enable or disable STUN server feature.

Enter the STUN server IP address if you enabled the STUN server feature.

Check the checkbox and enter the time period for the NAT to keep alive.

Check this checkbox to use rport. Rport, or symmetric signaling, is critical for

operations behind some classifications of NATs. If enabled, the SIP stack will

send outbound SIP messages on the same port that it listens on. Unless you are

familiar with single SIP port, it is better to use rport.

Check the checkbox if the remote end also supports FAX function.

Check the checkbox to enable P_Assert to hide the client name when sending

messages to the SIP proxy server.

DVG-2101SP User Manual

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