COMmander 6000/R/RX - Firmware V7.0D - Advanced Information V19 04/2018
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Phoning
Unsuccessful Outgoing Calls
Initiating External Callback on Busy
If you cannot get through to a busy subscriber despite repeated attempts,
you can initiate a 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).
