Other Groups; Data Communications - AT&T MERLIN LEGEND Release 3.1 System Manager's Manual

Features
Calling groups can be used to designate extensions used by voice messaging
systems or fax machines, so that these devices can receive calls directed to a
single extension number.

Other Groups

Other groups are assigned to enhance the use of specific system features:
Pickup groups can be assigned when people need to answer one
another's calls (see "Pickup," earlier in this chapter).
Paging groups are used for extensions that have speakerphones and are
located in the same work areas or departments. All members of a group
can be paged at once. (Note that the Loudspeaker Paging feature is
different; a loudspeaker paging system can support zones for
broadcasting to different areas of a company.)
Coverage groups are described above, in the section "Covering Calls."

Data Communications

You won't find a great deal about data communications in the Feature Finders
earlier in this chapter. Although the system allows data communications, it does
so with features that also support other functions. Full descriptions of data
communications are included in the Feature Reference and Data/Video
Reference .
NOTE:
For the most up-to-date information about data and video communications,
consult the Data/Video Reference .
Some data communications setups (called data stations ) include a modem
connected to an MLX telephone that is equipped with a Multi-Function Module
(MFM). MLX extensions make good data stations because they require only one
extension jack for both the phone and the modem (the modem may be inside or
external to a data terminal or PC). Alternatively, a modem may be attached
directly to an analog extension jack or to a General-Purpose Adapter (GPA) and
analog multiline telephone; to operate independently, the phone and GPA must
each have an analog extension jack. A modem can also be attached directly to
a tip/ring (T/R) jack on a 012 module, 016 (Release 4.0 and later systems), or
008 OPT module.
Group and personal desktop videoconferencing and Group IV (G4) fax
machines are supported through Basic Rate Interface (BRI), T1 Switched 56
lines, or Primary Rate Interface (PRI) for high-speed digital communications.
These arrangements also allow high-speed data transmissions through an MLX
extension that accesses a channel corresponding to a line/trunk. An ISDN
terminal adapter or built-in DCE takes the place of a modem for transmitting and
receiving data.
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Features and Applications