Mitel SX-200 Practices page 211

Features
Operation To park a call:
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Flash the switchhook (standard telephone), or press the
Flash
key
(SUERSET407) -wait for dial tone.
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Dial the Call Park access code - wait for dial tone.
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Replace the handset, or access paging equipment; see PA Paging.
To retrieve a parked call from the original extension:
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Lift the handset - connection is made.
To retrieve a parked call from another extension:
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Dial the Call Park or the Directed Call Pickup access code.
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Dial the number of the extension where the call
. The call is connected to the remote extension.
was parked.
Call back
Description
The Callback feature allows a user to be notified when a busy device be-
comes is free or when a set has been used after a no answer condition
was encountered.
Callback busy allows a user who has encountered a busy set, hunt group or
trunk group to have the call completed when the required set, hunt group or
trunk group becomes idle. The system continuously monitors the originating
set or console and the required device. When the originating set or console is
idle and the call can now be completed, thesystem calls the originating set or
console; when that set or console answers, it calls the required device.
Callback No Answer allows a user, after dialing an extension which does not
answer, to have the call completed later after the called party uses the
telephone. The system continuously monitors the originating set or console
and the called set. When the called set goes off-hook and then returns to
idle, the callback is handled in the same way as Callback Busy.
Up to 100 Callback requests may be active within the system at any time;
however, a maximum of only 25 ARS callbacks is permitted in these
requests.
See Attendant Callback Busy/No Answer and Callback Busy/No Answer.
Conditions The following conditions apply to this feature:
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If more than one callback request is active on any device, the requests
are queued and serviced in order of placement.
9109-096-105-NA
Issue
1
Revision
0 105 2-139