Features
413
System functions and features as of R3.0
syd-0367/1.3 – R3.0 – 03.2013
If the call is not answered by C within the configured recall time (C still busy or does 
not answer), B again obtains ringing (see "Recall", page 414).
If user B intrudes on C’s call and then goes on-hook, the call with A is also trans-
ferred. This applies only if C neither rejects nor answers B’s call. For the full scope of 
this feature, see "Intrusion", page 440.
Suffix dialling functions
Activate callback: see "Callback if user busy / free", page 467.
Tab. 205 Call transfer if busy: Function
System configuration
Tab. 206 Call transfer if busy: System configuration
Reference to Other Features
Function All terminals
Call transfer if busy Activate callback and go on-hook
Parameter Parameter value Remarks
Music on hold None / External audio source / 
Internal audio source / Hold tone / 
Welcome announcement
see also "Music on hold", page 395
Features:
• "Hold (enquiry call)", page 399
• "Callback if user busy / free", page 467
• "Recall", page 414
• "Call waiting", page 438
• "Intrusion", page 440