Mitel SX-200 Practices page 212

Features Descriotion
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Duplicate callback requests supercede the original request.
If the two parties involved in a callback hold a telephone conversation
(not a conference) before the callback is honored, the callback is can-
celed automatically.
Callbacks to a busy ARS digit string are NOT canceled if the same
ARS digit string to which the callback was set is successfully dialed.
A callback is canceled as soon as the telephone that originated it is
rung, even if a conversation is not established.
Internal callbacks outstanding for more than 8 hours are canceled au-
tomatically; callbacks to a busy ARS digit string are canceled after 1
hour.
If a callback is not answered by the originating set or console within 20
seconds, it is automatically canceled.
If the called party becomes busy before the originating party answers
the callback, the originating party hears busy tone when the callback is
answered. The callback is purged.
When a callback is placed to a hunt group, it is placed to the whole
hunt group and not to any particular member.
The scan for an idle hunt group member for the callback does not alter
the next extension to hunt for in a circular hunt group.
Callback - Busy must be activated within 10 seconds of receiving busy
tone.
Campons to extensions are honored before callbacks.
Originate Only extensions do not have access to this feature.
Call Forwarding is ignored when a callback rings at the originating set.
Callbacks ringing at a set cannot be picked up using CALL PICKUP
If a SUPERSETtelephone originates a callback, the callback always
rings the set' s Prime Line. If the prime line has Key line appearances,
the system places the key appearances into a simulated busy state to
prevent them from ringing during the callback. If the prime line has
Multiline appearances, they remain unchanged.
A callback only rings a SUPERSETor industry-standard telephone if
the set and the prime line are available.
Programming
None.
Operation
None.
105 2-140
Revision
0 9109-096-l
05-NA
issue
1