MERLIN LEGEND Communications System Release 5.0
Feature Reference
555-650-110
Issue 1
June 1997
Features
Page 577
System Access/Intercom Buttons
In Key mode, the factory setting for Automatic Line Selection (ALS) for multiline
telephones is a sequence of outside line buttons. The factory setting for ALS on
single-line telephones is an ICOM button.
In Behind Switch mode, the factory setting for ALS for both multiline and
single-line telephones is the prime line.
Ringing for all types of ICOM buttons is set by default to Immediate Ring and can
be changed to Delay Ring or No Ring (see
‘‘Ringing Options’’ on page 533
NOTE:
ICOM buttons are not shared.
Considerations and Constraints
3
9
At least one SA or ICOM button must be assigned to each extension in the
system.
SA or ICOM buttons can be assigned or removed only through centralized
telephone programming.
On a multiline telephone, SA or ICOM buttons can be assigned only on buttons 1
through 10.
Any SA button can be the principal extension for up to 16 Shared SA buttons on
other telephones. Any multiline telephone can have up to 28 SA or SSA buttons,
at least one of which must be an SA button. No SA buttons may be assigned
beyond line button 10, although SSA buttons may be assigned.
The maximum number of system users who can be on a call on an SSA button
(including the principal extension) is three.
When a call is received at the principal extension, it rings on the principal
extension’s SA button as well as on all corresponding SSA buttons.
SSA buttons cannot be assigned to a single-line telephone. A single-line
telephone cannot be the principal extension for a Shared SA button unless the
telephone is connected to an MFM.
When two or more users answer the same call on a Shared SA button, the red
and green LEDs next to the button go on, but only one person can talk with the
caller. Privacy should be used to eliminate competition for the same calls.
Calls received on DID trunks ring on an SA button and on all SSA buttons for the
receiving button.
