Instruction manual

Features
the MLX telephone user, calls cannot be made from the device connected to
the MFM. In addition, if the Voice Announce to Busy feature is being used at
the same time that a call is received at the MFM extension number, the caller
hears ringing and the device rings if it is capable. But the call to the MFM
extension number cannot be answered until one of the B-channels is free (the
MLX telephone user hangs up or the person calling the MLX telephone user
hangs up).
Although each digital station jack used to connect an MLX telephone is
assigned only one logical ID, the system automatically assigns two extension
numbers—one for the MLX telephone and one for the device connected to the
MFM. Both extension numbers are assigned to the digital jack whether or not
an MFM is connected. Since a separate extension number is assigned,
features and trunk access can be assigned to the MFM independently of the
MLX telephone. See System Numbering for details on specific extension
numbers assigned.
The ringing patterns for devices connected to an MFM are similar to those of an
MLX telephone rather than a single-line telephone—one ring for inside calls, two
rings for outside calls, and 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
When the 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
■ answering machines
■
speakerphones that emulate a tip/ring device
Supplemental Alert Adapter
When the MFM is set for SAA operation, an external alert that requires a 48-VDC
contact closure can be connected.
296 Multi-Function Module