Instruction manual

Features
Single-Line Telephones
The 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 then 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.
A single-line telephone user can cancel a Callback request by lifting the
handset and dialing #*55 while listening to internal dial tone. The system
sends a confirmation tone to indicate that the request is canceled.
A single-line telephone user cannot use Callback if another call is on hold.
A waiting incoming outside call rings at a single-line telephone before any calls
queued for that telephone.
Feature Interactions
Account Code
Entry
Automatic Route
Selection
Barge-In
Calling
Restrictions
Call Waiting
An account code must be entered before the user activates
Callback. If not, the user must wait until after the call is
connected before entering the account code. Account codes
cannot be entered while the call is queued.
When a call is made via Automatic Route Selection (ARS) and
all possible trunk routes are busy, the call can be queued for
the first route in the pattern. However, if the Facility Restriction
Level (FRL) for the telephone does not allow the call to be made
over the route, the call is not queued.
If Callback is used to request a busy extension or pool and the
user is waiting on the line for the queued call, Barge-In cannot
be used.
In the Hybrid/PBX mode, a user with a restricted telephone can
use Callback for a busy pool because restrictions are based on
the specific trunk being used to make the call. When a trunk in
the busy pool is available, the system checks for restrictions
assigned to the telephone. If the telephone is restricted, the
user hears a fast busy signal to indicate that the call is not
dialed.
When Automatic Callback is used to queue a call at an
extension that has Call Waiting, Callback overrides Call
Waiting—the user with Call Waiting does not hear the Call
Waiting tone, and the call is queued until the extension
becomes available.
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Callback