Configuration of NAT-Traversal 31

Modifying Proxy parameters

After you have enabled either the LAN or WiFi connection profile and have configured the settings to allow successful connection of the IP Phone 1535 to your local network, you can configure the IP Phone 1535 to find and use your installed proxy server in its operations with your installed MCS 5100.

For successful registration of the IP Phone 1535, you must access and modify the parameters of the Proxy configuration option as described below:

Step Action

1From the Main Menu, select Settings > VoIP Settings > Proxy, and press OK.

2Select the parameters to modify by choosing the appropriate configuration options and pressing OK. Enter the values as required. The available configuration options are as follows:

a.Proxy Address: Configure the Proxy server address information.

b.Proxy Port: Configure the IP Phone 1535 to use a specific port to connect to the network proxy server. By default, the proxy port value is 5060.

c.NAT/Timer (OPTIONAL): Modify the timing value used to maintain network connectivity through a firewall. The timing options available are 30 seconds, 45 seconds, 1 minute, 1.5 minutes, 2 minutes, 2.5 minutes, 3 minutes, and 5 minutes. By default, this value is 2.5 minutes.

NAT-Traversal:The IP Phone 1535 supports two methods of NAT Traversal - the SIP-PING method and the • STUN method. For more information on configuring NAT-Traversal, see "Configuration of NAT-Traversal" (page 31).

—End—

Configuration of NAT-Traversal

This section provides a description of NAT-Traversal on the IP Phone 1535, and its subsequent configuration.

The IP Phone 1535 supports two methods of NAT-Traversal:

SIP-PING:requires a Boarder Control Point (BCP) server for the MCS 5100 Release 4.0 and a RTP Media Portal server for MCS 5100 Release 3.5 if it is located behind a NAT/firewall.

STUN: The STUN protocol lets a client discover the presence and type of NATs between the client and the public Internet - a STUN server can

Nortel Multimedia Communications Server 5100

Nortel IP Phone 1535 Installation and Commissioning

NN43160-300 00.13 Preliminary

Release 4.0 22 August 2007

Copyright © 2007, Nortel Networks

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Nortel Networks 5100 manual Modifying Proxy parameters, Configuration of NAT-Traversal

5100 specifications

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