
62 Chapter 3 Installing IP telephones
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Deregistering DNs for IP telephones
You can deregister selected telephones from the Business Communications Manager, and force
the telephone to go through the registration process again.
To deregister a DN for a telephone:
1 In the Unified Manager, open Services, IP Telephony, and click on Nortel IP Terminals.
The IP Terminal summary appears.
2 Click on the IP Terminal Status tab.
3 Select the IP Terminal with the DN you want to deregister.
4 Open the Configuration menu, or right-click anywhere on the listing for the terminal to bring
up the menu, as shown in the next figure.
Figure 13 Deregister DN from Configuration menu
5 Click Deregister DN.
6 Reregister the telephone, as described in “Configuring the i2002 or i2004 telephone to the
system” on page 44.
Warning: Once this feature is activated, all active calls are dropped.
Warning: Once this feature is activated, all active calls are dropped.
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