Lucent Technologies MERLIN LEGEND Release 5.0 Feature Reference page 131

MERLIN LEGEND Communications System Release 5.0
Feature Reference 555-650-110
Features
Callback
In order to use Callback with pools consisting of loop-start lines, the loop-start
lines must be programmed for reliable disconnect.
Mode Differences
Hybrid/PBX Mode
Callback can be used for busy extensions and for outside calls on pools where all
lines/trunks are busy.
Key and Behind Switch Modes
Callback can be used only for busy extensions. Line Request is used for busy
outside lines that are assigned to line buttons.
Telephone Differences
Queued Call Consoles
A QCC operator cannot use Callback.
Other Multiline Telephones
On all other multiline telephones, Selective Callback is activated by pressing a
programmed Callback button or by pressing the Feature button and dialing
On MLX display telephones, Selective Callback is also activated by pressing the
Feature button and selecting the feature from the display. If the user is on another
call when the system tries to call back, he or she hears an abbreviated ring.
A multiline telephone user can queue more than one call to the same extension.
On a multiline telephone, cancel a callback request by pressing the SA or ICOM
button used to make the call, lifting the handset, pressing the Drop button, and
pressing the SA or ICOM button again. The red and green LEDs next to the
button go off, and the request is canceled.
Single-Line Telephones
A single-line telephone user can make and receive other calls while waiting for the
call to be completed. The request remains in the queue until the user who initiated
the request is available. Queued calls ring at a single-line telephone in the order in
which they were queued.
A single-line telephone can queue only one call at a time. If a single-line telephone
user who has already queued one call tries to transfer a second call to a busy
pool, the transferred caller hears a fast busy tone. The system considers the
transfer complete, and the call is not returned to the single-line telephone user
who transferred the call.
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Issue 1
June 1997
Page 99
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