When in doubt, look it up
Ringing and handset tones
Tones for internal and external calls
Tones in the handset
96
Normal ringing tone for external calls:
This tone can be switched off.
Normal ringing tone for internal calls:
This tone can be switched off
Alerting tone:
Additional call during a connection, partner
beep.
Team call:
VIP function. This tone can be deactivated.
Positive response tone:
Received when a function is carried out
correctly.
Negative response tone:
Received when a function is not possible.
Signal tone:
When Call monitoring and dialing with the
handset on--hook. The other party can also
hear this tone.