The Avaya 900 MHz system is based on a micro-cellular design that consists of:

• Master Control Unit (MCU)
• base stations
• wireless telephones

With its advanced micro-cellular architecture, the system locates small radio transceivers or base stations throughout a customer’s facility to accommodate on-premise roaming. As a wireless telephone user moves within the coverage area, the call is seamlessly passed between base stations. The system supports up to 3,200 users and millions of square feet of coverage, giving customers a scalable enterprise-wide wireless voice solution.

Master Control Unit
The Master Control Unit (MCU) is the processing center for calls to and from the Avaya 900 MHz Wireless Telephone system. Residing adjacent to the Avaya Communications Server, the MCU operates as a standalone, external system, while maintaining full telephony functionality for wireless telephone users. The MCU connects the Avaya Communications Server to the wireless system components by interfacing with the server’s analog ports or connecting directly via a digital interface. Telephony ports for each wireless telephone are commissioned from the communications server.

Base Stations
Base stations provide the communication channel between the MCU and the wireless telephones. The base station and wireless telephones use digital spread-spectrum radio transmission in the 902-928 MHz frequency band.



Avaya Communication System Integration The Avaya 900 MHz Wireless Telephone solution works with Avaya DEFINITY® servers (R3 and later) and Avaya Media Servers running Avaya Communication Manager, providing full telephony features to wireless phones.

This gives users access to advanced calling features, such as calling party name display, message waiting indication, multiple line appearances, and others.

No Usage Charges This system operates in the 902-928 MHz frequency band, which is allocated by the FCC for unlicensed use. There are no licensing or frequency coordination requirements to install, expand, or relocate the system anywhere in North America.
As a result, the Avaya 900 MHz Wireless Telephone solution enables customers to cut costs by eliminating airtime, usage, and recurring charges.

Application Interface The 900 MHz Wireless Telephone solution supports an Open Application Interface (OAI), allowing Avaya 3410 Wireless Telephones to serve as two-way messaging devices. Applications such as

• MessageLink from On-Site Communications provide interfaces to the customers'
• in-house paging systems
• email
• client-server messaging

Other vendors with complementary systems such as

• nurse call
• telemetry
• alarm
• control system manufacturers

are currently developing applications to interface with the Avaya 900 MHz Wireless Telephone solution.

Provides integration of applications and access to important functionality across platforms, from anywhere on the premises. Improved efficiencies and total un-tethered access to business tools can enhance associate satisfaction and improve the empowerment of employees to make a difference to the corporate bottom line.

Scalable Architecture The 900 MHz Wireless Telephone solution is exceptionally scalable. Two different sizes of Master Control Units (MCUs) are available:

• the Link150 MCU is designed for small- to mid-sized applications requiring no more than 64 wireless telephone users
• the Link 3000 MCU is expandable to support mid- to large-sized applications with up to 3,200 users.

Enables customers to grow gracefully from a handful of users to thousands, without requiring any ancillary switches or servers.

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Email: sales@platcomm.com