AT&T MERLIN LEGEND Release 3.1 Installation Manual page 246

MERLIN MAIL
Callers who dial from rotary telephones cannot use MERLIN MAIL features.
The system may need more touch-tone receivers if:
Single-line telephone users do not get a dial tone.
MERLIN MAIL fails to transfer calls.
Calls fail to ring or go to coverage prematurely.
Message-waiting lights fail to light.
MERLIN MAIL and AT&T Attendant should not be used on the same system.
Programming of MERLIN MAIL is through a touch-tone interface.
MERLIN MAIL has an EIA-232-D serial port and an external modem to support
remote diagnostics.
You cannot use the first four logical IDs on a 008 OPT module to physically
connect telephone equipment; however, you can use the extension numbers
of these logical IDs for phantom extensions.
Additional touch-tone receivers (TTRs) may be needed for the 012 or 016
module to handle a large number of voice connections.
The MERLIN MAIL unit can be desk- or wall-mounted and should be placed in
an area with low humidity and proper ventilation.
Follow the power and ground procedures for T/R telephones that require
auxiliary power.
Hardware Requirements
The following hardware is required for MERLIN MAIL installation:
MERLIN MAIL Voice Messaging System unit and power cords
Remote maintenance device (with a wall-mount transformer)
8–20
Installing Applications