D-Link DVG-2001S manual Advanced Voip Peer to Peer, User IP Address

Advanced > VOIP > Peer to Peer

The VoIP Terminal Adapter can be configured to handle voice signals over the Internet Protocol (Voice Over IP − VOIP).

Index	This field assigns the telephone socket (on the back of the
	router) to the information entered in the User Agent.
Phone Number	The telephone number assigned to this entry.
User IP Address	Enter the IP address of the remote peer in this field.
Port	Enter the UDP port number the remote peer will use to make
	the connection in this field. If you do not have any information
	as to the proper port number, leave the default setting here.

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