Installation Guide

Chapter 2. Overview of the Installation
• If you use a dialing domain which looks like an IP address, enter the dialing domain in the Translation
exceptions table. See also the Interoperability section.
• For this type of dialing domain, you also need to go to the Routing page. Enter the dialing domain in the DNS
Override For SIP Requests table and state the IP address of the SIP server(s) to handle the domain. See also the
Routing section.
• Go to the Save/Load Configuration page under. Select Apply configuration. Now you can test your new
configuration and save it permanently if you are satisfied with it. If the configuration is not satisfactory, select
Revert or restart the Telecommuting Module. The old configuration will remain.
When the Telecommuting Module is configured, the firewall connected to it must also be reconfigured (for the
DMZ and DMZ/LAN Telecommuting Module Types).
• Allow UDP and TCP traffic in the port interval used for media streams by the Telecommuting Module, and port
5060. This traffic must be allowed to all networks which should be reached by SIP traffic.
See also chapter 14, Firewall and Client Configuration, for information on configuring the firewall and the SIP
clients, and chapter 4 of the User Manual for Telecommuting Module configuration examples.
Before you start
You could do a rough sketch of your network to make the configuration simpler. Things to think of:
• Which IP addresses will the Telecommuting Module interfaces use? You can have more than one IP network on
one interface, each requiring a separate IP address for the Telecommuting Module.
• Which series of IP addresses will be used on the networks connected to the different interfaces?
• Are there networks behind routers?
• What is the default gateway for the Telecommuting Module?
About settings in 3Com VCX IP Telecommuting Module
3Com VCX IP Telecommuting Module uses two sets of Telecommuting Module configurations: preliminary and
permanent configuration. The permanent configuration is what is used in the active Telecommuting Module. The
preliminary configuration is where you change and set the configuration. See chapter 3 of the User Manual for
instructions.
The changes you make in the preliminary configuration are not stored in the permanent configuration until you click
on Apply configuration on the Save/Load Configuration page under Administration.
The password configuration and time setting are the exceptions to this rule; they are saved immediately. Change the
administrator passwords and create more administrator users on the User Administration page under
Administration.
3Com VCX IP Telecommuting Module displays serious errors in red, e.g., if mandatory information is not entered.
Blank fields are shown in red. Fields that you correct remain red until you select Save, Add new rows or update the
page in some other way.
If you have a web connection with the Telecommuting Module that is inactive for 10 minutes, it will ask for a
password again.
Always log out from the Telecommuting Module administration interface when you are not using it. Press the Log
out button on the left to log out.
The terms used in the book are explained in appendix C of the User Manual.
For a general description of how to configure and administer the Telecommuting Module, see chapter 3 of the User
Manual.
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