Mitel SX-200 Documentation page 102

SECTION MITL9105/9110-096105-NA
AUTOMATIC CALLBACK - BUSY (EXTENSIONS)
Page 48
Description
Automatic Callback - Busy aiiows
ing a busy extension number (or trunk access code, see Outgoing
Trunk Callback), to have the call completed when the extension be-
comes idle. After the feature has been activated, the system con-
tinuously monitors the originating extension and the called number.
When both become idle, the system rings the originating extension,
and when that extension goes off-hook, the called extension is rung. If
more than one callback request is active on any number, the requests
are queued and serviced on a first-in, first-out basis. All callbacks may
be cancelled from the Attendant Console. Automatic Callback - Busy
can also be used by the Attendant.
Conditions
An individual callback cannot be cancelled by the station or the
Attendant.
A callback will always ring the originating extension; Call For-
warding has no effect.
Automatic Callback may be activated on extension numbers, hunt
groupaccess codes andtrunkgroup access codes.
Up to 30 callback requests may be active within the system at
any time.
If the two parties invohfed
a conference) before the callback is honoured, the callback will
be cancelled automaticaily.
Any callback outstanding for more than 8 hours is cancelled
automatically.
Duplicate callback requests are ignored. (The original callback
request is cancelled.)
The callback access code must be dialed within i0 seconds of
receiving busy tone.
If a callback is not answered by the originating extension within
six rings, it is automatically cancelled.
If the called party becomes busy before the originating party
answers a callback, the originating party will hear busy tone and
may dial the Callback code again.
If a Speed Call button was used to dial the number, Automatic
Callback - Busy is not effective.
The originating extension's COS must include Class-of-Service
Option 33 (Automatic Callback).
Assign a single digit access code to Feature Number 23 (Callback
If callback to busy trunk groups is required, select System Option
208 (Outgoing Trunk Callback).
an extension user, upon encounter-
in a callback hold a conversation (not