AT&T MERLIN LEGEND Release 3.1 Installation Manual page 103

Installing Adjuncts
4 Slide the switch on the back of the GPA to the setting that provides the
required service.
Basic. This setting is used to dial and answer calls from an analog
multiline telephone or to attach a T/R adjunct such as a single-line
telephone or answering machine. Incoming calls ring only on the
analog multiline telephone. This setting also allows the user to
originate and receive calls on the telephone while using a computer
with a modem that is attached to the GPA. However, if this setting is
used, data calls cannot be answered automatically.
Join. This setting is used to add a recording device or a single-line
telephone to a call that is in progress on the telephone. You cannot
originate or answer calls on this setting.
Automatic. Use this setting when a GPA connects a modem to an
analog multiline telephone for answering calls or answering machine.
Dial Dictation Devices
You can connect a dial dictation device to one of the following, as described
earlier in this chapter:
012 module
016 module
MLX telephone with an MFM
GPA and analog multiline telephone
You can also connect a dial dictation device through a commercially available
trunk adapter or a Universal Paging Access Module (UPAM) on a loop-start
line/trunk jack with an external power supply unit.
NOTE:
Using any of the devices listed above, you cannot connect dial dictation
devices that require contact closure. You can connect such equipment
through a UPAM, however, since it provides contact closure for the device.
Installing Telephones and Adjuncts
3–25