MERLIN LEGEND Communications System Release 6.1
Feature Reference
555-661-110
Issue 1
August 1998
Features
Page 432Multi-Function Module
can be assigned to the MFM independently of the MLX telephone. See “System
Renumbering” on page 659 for details on specific extension numbers assigned.
The ringing patterns for devices connected to an MFM are similar to those of an
MLX telephone for inside calls: two rings for outside calls; a ring and two beeps for
priority ring or transfer return.
A switch on the MFM can be set for one of the following operations:
■ Tip/ring interface
■ Supplemental Alert Adapter (SAA)
Tip/Ring Interface 29
When an MFM is set for tip/ring interface operation, only dual-tone multifrequency
(DTMF) tip/ring devices can be used to make and/or receive inside and outside
calls. The following types of DTMF devices can be used:
■ Single-line telephones
■ Modems
■ Fax machines
■ Credit card verification terminals
■ Cordless single-line telephones
■ Speakerphones that emulate a tip/ring device
■ Answering machines
Supplemental Alert Adapter 29
When an MFM is set for SAA operation, an external alert that requires a 48-VDC
contact closure can be connected.
If the external alert is used to supplement the ringing for both inside and outside
calls, the MFM should be assigned (through centralized telephone programming)
as a Primary Individual Coverage receiver with the Ring Timing option of
Immediate Ring. The MLX telephone can use Coverage On/Off to activate the
alert. In addition, by specifying that both inside and outside calls or only outside
calls are covered with the coverage arrangement, the sender (in this case the
MLX telephone user) can specify that the device (the receiver) should ring for both
inside and outside calls or only for outside calls.
If the external alert is used to supplement ringing only for calls received on
personal lines (outside lines assigned to buttons), the same outside lines/trunks
and ringing options assigned to the MLX telephone should also be assigned to the
MFM. In this arrangement, the MFM device does not ring when inside calls are
received on an SA or ICOM button.
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