Philips D721 - Manual (Page 73)

6.3.1.3 Automatic callback on busy
When the called party is busy, you can also use the "callback on busy" fea-
ture from the analog terminal if the prerequisites (see 3.3.2) are met.
Activating automatic callback on busy
Initial state: called party is busy
Steps:
No. Description Input Display
If the called party hangs up, first of all you and, once you have lifted the
handset, the party who has become free are called again.
Positive acknowledge-
ment tone if the function
has been activated,
otherwise negative
acknowledgement tone
* 3 7 #
Initiate automatic
callback 1
Depending on the
terminal You hear the
busy tone
Depending on the
terminal
R
When the second
party lifts the handset,
the telephone is in the
"brokering" state. By
pressing the
R
key,
you can switch bet-
ween ("brokering")
both parties.
3
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