Tones
The PBX supports different tones on the receiver in order to signal the various operating states on the PBX.
Signaling scenarios
•External dial tone (long dial tone):
−After dialling the exchange line access number, when a free external line is available – dialling a telephone number is possible
•Internal dial tone (private branch exchange dial tone):
−After picking up the receiver or after pressing the Flash or Query key, when a free line is available – dialling a telephone number is possible
Note: On standard VoIP phones, a dial tone is generated by the phone itself, even when no free line is available.•Confirmation tone:
−At the completion of programming, when the programming has been successfully executed
•Busy tone:
−After picking up the receiver, when no free line is available or an authorisation is missing
−After dialling a phone number, when the desired connection is busy or the network is overloaded or an authorisation is missing
−At end of call
−During programming, when the programming was unsuccessful or an authorisation is missing
−During a Call Through call, when the telephone number transferred from the mobile phone is not permitted to use Call Through
•Call tone:
−During the call phase
•Call waiting tone:
−During a call (when call waiting has been enabled ), when another call comes in – it is possible to accept or reject the additional call
•Changing tone:
−During a Call Through call, when the telephone number transferred from the mobile phone is permitted to use Call Through - dialling a telephone number is possible
−During a remote programming call, when the connection for remote programming is available – programming is possible
Display of signaling types
The tones are signalled as follows:
aPermanent dial tone (425 Hz)
bPrivate branch exchange dial tone (425 Hz)
cConfirmation tone (425 Hz)
dBusy tone (425 Hz)
eCall tone (425 Hz)
fCall waiting tone (425 Hz)
gChanging tone (697/1633 Hz)