3Com NBX, Руководство по установке

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5
A
NALOG
D
EVICES
This chapter tells you how to install and verify the successful installation
of these analog devices:
■
Analog Terminal Card
■
Analog Terminal Adapter
■
The ATA port on a V3000
WARNING: The 3Com Analog Terminal Adapter is intended for
connection only on internal LANs. Do not install it outside of buildings.
Do not connect it to any networking device outside of the building in
which the telephones are located.
A four-port Analog Terminal Card (ATC), a single-port Analog Terminal
Adapter (ATA), or the ATA port on a V3000 allows analog (2500-series
compliant) devices, such as cordless telephones and fax machines, to
operate with NBX systems.
Certain limitations apply to a phone connected through an analog port
because of the differences between an analog device and a 3Com
Telephone:
■
A user cannot forward calls to voice mail by enabling a button such as
the FWD MAIL button on the 3Com Business Telephone. You can use
a feature code to have the system automatically transfer calls to voice
mail if your analog telephone is not answered.
■
An analog telephone can make or answer only one call. If the analog
telephone is in use, an incoming call automatically goes to voice mail.
However, if you have purchased the Call Waiting service from your
telephone company, and you have an incoming analog telephone line
mapped directly to your analog telephone, you can press the hook
switch to toggle back and forth between two calls.