AT&T MERLIN LEGEND Release 3.1 System Manager's Manual page 100

Telephones
SA Voice. Use this button to make and receive inside and outside calls.
When you use an SA Voice button to make an inside call, the user at the
destination extension hears your voice on the speakerphone after a
single beep, rather than ringing. (If you are using an SA Voice button to
make a voice-announced call and the user at the destination extension
has a telephone that does not have a speakerphone or has disabled
voice announcements, the telephone rings just as if the call was made on
an SA Ring button.)
SA Originate Only. Use this button to make inside and outside calls. You
cannot receive calls on SA Originate Only buttons. The purpose of this
type of button is to ensure that you always have a button available to
make or transfer a call, establish a conference call, answer a call-waiting
call, or pick up parked calls. For inside calls, you can program the button
for either voice or ring operation.
Shared SA (SSA). Use this button to allow two or more users to answer
each other's calls, join conversations, or make or receive inside or
outside calls on each other's SA Ring or SA Voice buttons. In a Shared
System Access arrangement, one extension is the principal (or primary)
extension. This extension is the telephone from which SA Ring, SA
Voice, and/or SA Originate Only buttons are assigned as Shared SA
buttons.
Shared SA buttons are often used by assistants and their supervisors, as
well as people who work closely together, such as in a customer service
department. For inside calls, you can program the button for either voice
or ring operation.
ool. Use this button to make outside calls on a specific trunk pool. To
P
make an outside call, press the appropriate Pool button; no dial-out code
is necessary.
Personal Line. Use this button to dedicate the use of a specific outside
trunk to one or more telephones in the system. You can use the personal
line button to make and receive only outside calls. To make a call, press
the appropriate personal line button; no dial-out code is necessary.
You can assign a combination of up to 28 SA Voice, SA Ring, SA Originate
Only, and Shared SA buttons to any telephone (but not to a QCC) with 28 or
more line buttons, using buttons 1 through 28. Buttons 1 through 10 can be SA
buttons, and one must be an SA button. Any of the remaining 27 buttons can be
assigned as Shared SA buttons, but no Shared SA buttons are required. The
number of personal line buttons that you can assign to a telephone is limited
only by the number of trunks in the system and the number of buttons available
on the telephone.
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System Components