3
Dialing methods
The MCA provides three methods for making data calls through the Nortel
Networks PBX: keyboard dialing, AT dialing, and keypad dialing. You use
Keyboard and AT dialing by entering commands at a terminal or on a PC running
software to make it emulate a terminal. Keypad dialing is done through the
telephone keypad.
Keyboard dialing is menu driven. Data calls are made by pressing the < CR > to
get the Main menu. By navigating through the menus, different features can be
activated.
AT dialing is very similar to methods used to make modem calls with a Hayes
Smartmodem1. The user enters a command starting with the letters AT followed by
a few letters to distinguish the command, then presses the carriage return < CR >
Key.
Keypad dialing on the M3900 telephone is done by pressing the Options Key
followed by a two digit MCA data parameters number. To release the keypad
telephone dialing, press the Options Key.
Switching between keyboard and AT dialing
To switch between AT dialing and keyboard dialing, you must be in an idle state
(not connected to a far end data device).
The most recent prompt must be
either:
NO CARRIER
or
RELEASED
To switch to AT dialing:
AT
or
At this point you may type AT to get AT
dialing
or
< CR > Press the Carriage Return Key to activate
keyboard dialing.
1.Smartmodem is a trademark of Hayes Microcomputer Products Inc.