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IP Telephones allow access to the features of Communication Manager without having to be 
tied to one location. One of the major benefits of IP Telephones is that you can move the 
telephones around on an IP network just by unplugging them and plugging them in somewhere 
else. One of the main benefits of IP Softphones is that you can load them on a laptop computer, 
and connect them to the Communication Manager switch from almost anywhere. Users can 
place calls, and handle multiple calls on their PCs.

Extension to Cellular is an integrated mobility solution that offers users the freedom to work 
anywhere, anytime, using any type of cellular or wireless telephone. With Extension to Cellular, 
calls to an office number are extended to a cellular telephone, allowing users to receive 
work-related calls wherever they are and whenever they need. Additionally, the cellular 
telephone can be administered so that when a user calls into the office, the user’s name and 
office telephone number appear in the caller ID display of the telephone being called. When the 
Extension to Cellular cell phone is administered to send office caller ID, the user also has the 
option of picking up an ongoing Extension to Cellular cell phone call on the office telephone 
when the user enters the office.
Extension to Cellular works over PRI as well as an IP trunk interface. The cell phone user 
receives the same features and capabilities for incoming calls as a caller ID-enabled analog 
telephone that is connected directly to the Avaya Communications Server. Extension to Cellular 
provides this capability regardless of the cell phone’s cellular service provider or the cellular 
standard in use.

Avaya Communication Manager supports a large number and variety of communication 
capabilities and applications, including:

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