Avaya S8700 Application Notes page 2

1. Introduction
These Application Notes describe the compliance-tested configuration utilizing Avaya™
Communication Manager and Ascom Freeset DCT1900.
Freeset DCT1900 is the Personal Wireless Telephone (PWT) in-building wireless
communication system from Ascom Wireless Solutions, Inc. that interoperates with the Avaya
Communication Manager. The system provides call handover and roaming features. The Freeset
DCT 1900 consists of the following three subsystems:
1. The Radio Exchange (RE) is the interface between the Avaya™ G600 Media Gateway
and the base stations. Incoming and outgoing calls are routed via the RE. The RE is
connected to the Media Gateway via the ports of a digital line card.
2. The Base Station enables radio communications between the RE and Portable
Telephones. Each Base Station has two antennas for improved performance through
diversity selection. The Base Station modulates and demodulates a carrier with the digital
encoded information (TDMA frame to and from Portable Telephone).
The Ascom portable telephones (models DT620, 9p23 Medic and 9p23 Messenger)
3.
provide the functions of a wired telephone. Each is equipped with a 3-line 12-character
dot matrix LCD display, backlit illumination keypad and display, and plastic keypad. In
addition, the 9p23 telephones include built-in vibration alert, internal antenna, panic
button, built-in hands-free loudspeaker, and mute and volume controls.
Ascom Freeset DCT1900 requires a circuit pack capable of supporting Avaya™ 8410D Digital
telephones. Although the solution was validated using a TN2224 circuit pack, a technical
analysis of the interface allows the test results to extend to the TN2181 and TN2224B circuit
packs as well. The analysis also supports these circuit packs in the following media gateways:
• Avaya G600 Media Gateway
• Avaya CMC1 Media Gateway
• Avaya CC1 Media Gateway
• Avaya MCC1 Media Gateway
Note that this list specifically excludes the Avaya™ S8300 Media Server using an Avaya™
DMM3 Digital Media Module. The S8300, and corresponding DMM3 media module, is not
supported.
As seen in Figure 1, Avaya Communication Manager runs on Avaya S8700 Media Servers in an
IP Connect configuration. Each Ascom portable telephone is provisioned in Avaya
Communication Manager as an Avaya 8410D telephone with four line appearances.
KT; Reviewed:
NAB 6/18/03
Solution & Interoperability Test Lab Application Notes
©2003 Avaya Inc. All Rights Reserved.
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AscomS8700.doc