Mitel SX-200 Practices page 213

Features
Callback - Busy
Description
Conditions
Originate Only extensions do not have access to this feature.
Programming
Enable COS Option 300 (Automatic Callback) in the set' s COS.
Assign an access code to Feature 20 (Callback - Busy).
For feature key activation of callback on SUPERSET DN or
SUPERSET 410 telephones, program a CALLBACK feature key. (See
Feature Keys.)
Operation
.
The Callback - Busy feature allows a user who has encountered a busy
telephone, hunt group, or trunk group to have the call completed when
the required telephone, hunt group, or trunk group becomes idle.
See Callbacks for details on Callbacks.
See &pensive Route
Warning
for Callbacks to less expensive ARS routes.
If Callback - Busy is to be permitted on outgoing trunks, also enable COS
Option 236 (Outgoing Trunk Callback) in the set' s COS.
Operation varies depending on the type of telephone as described below.
Industry-standard, SUPERSfl3, and SUPERSET Telephones:
The called extension, hunt group, or trunk group is busy. To set a callback:
Dial the Callback - Busy access code within IO seconds. Dial tone is
returned. Your set is now ready for normal use.
When the busy extension, hunt group, or trunk group becomes idle,
your set rings.
Lift the handset - ringback or audio for ARS dialing is heard.
The required extension rings or the trunk is seized.
SUPERSET
Telephones:
The called extension, hunt group, or trunk group is busy. To set a callback:
9109-096-l 05-NA
Press the CALLBACK softkey - dial tone is returned. Your set is avail-
able for normal use.
When the busy extension, hunt group, or Trunk Group becomes idle,
your set rings. The LCD displays CALLBACK.
Go off-hook - ringback or audio for ARS dialing is heard.
The required extension rings or the trunk is seized.
Issue
1
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