COMpact 5200/5200R/5500R - Firmware V7.2 - Advanced Information V04 07/2018
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Phoning
Unsuccessful Outgoing Calls
Initiating External Callback on Busy
If you have initiated a callback, as soon as the other subscriber has hung up
the receiver to end the call, the public exchange calls you. If you then pick
up the receiver, the other subscriber will be called. If the other subscriber
picks up the receiver, the connection for the call will be established. This
deletes the callback procedure in the public exchange.
Requirements:
•
Fulfilling the technical requirements for a callback on busy (for instance,
not all network providers provide callback on a PTP connection)
•
Service feature CCBS (callback on busy) is enabled by the network
provider.
Important:
On system phones, this function is called via the menu/phone app
(optional, see manual for the phone).
To use this function at ISDN phones or to delete it again, this function
must be supported via a function key or via the menu by the respective
phone (optional, see manual for the phone).
Note:
You can also use this function on analogue phones, where it can
be performed via the T-Net function key/menu (optional, see manual for
the phone). Instead of the announcement by the public exchange, you
will hear the confirmation tone.
If the connection you are calling is busy, proceed as follows:
1. Press the
Flash key
or the
Query key
.
2. Dial
*37#
.
