Conference; Coverage - AT&T MERLIN LEGEND System Reference Manual

Features

Conference

Coverage

Display
Do Not Disturb
Extension Status
Forced Account Code
Entry
Forward and Follow Me
2-56 Callback
With Automatic Callback, the call is automatically queued; however, if the user
tries to add the queued call to the conference, the system returns a busy tone. If
a user with Selective Callback tries to queue a call while setting up a
conference, the system returns a busy tone. The user must press the Drop
button and the line button used for the call to drop the busy tone from the
conference.
The sender and all coverage receivers must be busy before a call to a sender
can be queued. The call is sent to coverage before it is put in the Callback
queue. Once a call is in the Callback queue, it is not sent to coverage again.
The Callback call indicating that a busy extension or pool is available is not
eligible for Individual or Group Coverage.
When a call is queued via Automatic Callback on MLX and analog multiline
telephones or via Selective Callback on analog multiline telephones, the display
shows a feedback message. When an MLX telephone user activates Selective
Callback, the display prompts the user to enter the telephone number. After the
number is dialed, the display provides the same feedback as on an Automatic
Callback call. When the queued call rings the user's telephone, the display
indicates that it is a returning Callback call.
Calls to extensions that are using Do Not Disturb are not eligible for Callback
queuing. If the Callback originator is using Do Not Disturb, the system overrides
the feature and the telephone rings when the busy extension or trunk is
available.
In the hotel/motel mode, a station in ES state 1 or 2 cannot use Callback to
request busy pools.
An account code must be entered before Callback is activated. If not, the user
hears a busy tone.
If a user queues a call and then uses Forward, Remote Call Forward, or Follow
Me, the call does not ring back at the destination extension or telephone
number the Callback call returns only to the forwarding telephone.
When a user with Automatic Callback activated selects a pool on which to
forward calls to an outside number and all trunks in the pool are busy, the caller
hears queuing tone when the call is queued for the busy pool. When the pool is
available, the caller hears the dequeuing tone and the call is forwarded.
When a user with Selective Callback selects a pool on which to forward calls to
an outside number and all trunks in the pool are busy, the caller hears a busy
signal to indicate all trunks in the pool are busy. If the call is from an inside
caller, the caller can activate Callback and the call is queued for the forwarding
telephone and not the busy pool. Outside callers cannot use Callback when the
forwarding telephone is busy.