[Standard—Nortel Networks Confidential]
Chapter 2 Introducing the i2004 Internet Telephone 15
Some useful terms you should know
The i2004 Internet Telephone may look like a regular telephone but there are some important differences that you need to keep in mind.
Multiple user logon
Your i2004 Internet Telephone can support up to 6 lines. That means that 6 different people can log on to a single i2004 Internet Telephone to receive and place calls. The first person who logs on to the telephone has the primary line. You can also be logged on to several different i2004 Internet Telephones at the same time. If you have a job function that requires you to move around to different locations then you can always be sure that your calls will reach you.
Some menu options allow you to configure or view parameters that are specific to a line. If there are multiple users logged on to the telephone then you will be prompted to select your line button.
What is an address?
When you enter an address to call someone, that can mean entering; a telephone number or a SIP address. A SIP address is a unique identifier of users on the IP network. It has the same format as an email address, for example, jdoe@lab1.org, but it is not an email address. The characters before the @ sign represent the username, in our example, jdoe. The characters after the @ sign represent the domain name of the server, in our example, lab1.org. If you are located in the same domain as the user you are calling then you do not need to enter the domain name part of their SIP address (@lab1.org).
The network can track where you are and route your calls when you log into any i2004 Internet Telephone with your SIP address. Using SIP addresses allows you to take advantage of the other powerful features such as Presence.
In order to make it easier to place calls, you can store addresses (SIP addresses or telephone numbers) in an address book.