Nortel Networks BCM1000 Benutzerhandbuch

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Chapter 2 Telephony hardware
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Installation and Maintenance Guide
Cordless and wireless systems
The following sections describe the cordless and wireless systems that are compatible with the 
Business Communications Manager system, and the hardware components that are required.
Digital Mobility Solutions
The Digital Mobility system introduced with this release consists of four independent hardware 
components:
The Digital Mobility Controller (DMC), which acts as the telephony processor between the 
Business Communications Manager and the base stations and handsets. The DMC connects to 
digital ports on the Business Communications Manager on a one-to-one basis. The size and 
number of DMCs determines the number of supported handsets (from eight to 64). This 
hardware has a separate configuration interface that allows you to register and subscribe 
handsets to the system.
The base stations connect to the DMC. The number of base stations that can be supported by a 
DMC is determined by the model of DMC. The DMC080 supports a maximum of two base 
stations, which support eight loops each. The DMC320 supports a maximum of four base 
stations.
Repeaters are auxiliary equipment which allows you to extend the range of the base stations. 
This piece of equipment also has a separate configuration interface.
Digital Mobility phones are compact wireless handsets that emulate the 7100 digital phone 
features. However, they have two-line displays and soft keys, which allows them to interact 
with the system features. This handset does not support features that require handsfree. As 
well, a number of set-based features exist to supplement those features not supported on the 
handset by the Business Communications Manager, such as contrast adjustment, auto-dialing, 
languages for the set-based prompts, and so on.
Wireless LAN telephony
The Wireless LAN system introduced with this release provides wireless IP telephony support for 
your system. The handset can also be configured to work over a WAN, however, all the following 
components must be in the same subnet as the Business Communications Manager hosting the 
handsets.
The components of the system include:
A 2045 SVP server that acts as the processor for incoming calls from the Wireless LAN 
handsets. This server can be anywhere on the network, but it must be within the same subnet 
as the Business Communications Manager that needs to access it.
A TFTP server provides firmware update capability for the handsets.
The system can use any 802.11-compatible access point.