
42 Chapter 3 Installing IP telephones
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IP telephony on the Business Communications Manager
The Business Communications Manager supports IP telephony protocols, UNISTIM and
H.323 (version 4).
• The Nortel Networks i-series telephones use the UNISTIM protocol.
• The Symbol NetVision and NetVision Data telephones use H.323. Refer to Chapter 4,
“Installing NetVision telephones,” on page 73.
The applications that control these protocols on the Business Communications Manager provide
an invisible interface between the IP telephones and the digital voice processing controls on the
Business Communications Manager.
The i200X IP telephones are hardwired to an internet connection. They can be installed on any
internet connection that has access to the network connected to the LAN or WAN of the Business
Communications Manager.
The Nortel Networks i2050 Software Phone runs on any computer running Windows 98, Windows
2000, or Windows XP. The computer must be connected to the LAN or WAN to which the
Business Communications Manager is connected.
Configuring Nortel Networks i-series telephones
The configuration menus for the Nortel Networks IP telephones are located under Services, IP
Telephony, Nortel IP Terminals and Services, Telephony Services, System DNs, Inactive
DNs, Set DNs. DN records move to Active set DNs after the telephone connects (registers) to the
system.
Once a DN record is assigned and the telephone registers to the system, the record also shows up
under DN Registration in one of the following folders:
• Inactive DNs reg’d if the IP telephone has been assigned a DN and is registered to the system
but currently is not active
• IP set DNs reg’d if the IP telephone is active
• IP wireless DNs reg’d if the NetVision handset is registered and is active
The information under the following headings provides details about configuring and
troubleshooting IP telephones:
• “Preparing your system for IP telephone registration” on page 43
• “Installing i-series telephones” on page 46
• “Configuring the i20XX telephones to the system” on page 47
• “Troubleshooting IP telephones” on page 51
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