1.2 Making CallsUser Manual 391.2.5 Switching the Calling Method (Alternate Calling—Ring/Voice)To switch the calling methodExtension users can choose whether to be alerted toincoming calls by ringing or by the caller's voice.The calling extension can override this choice and usethe alternate method.Ringing (Default): You can call the other partywith a ring tone. You will hear a ringback tone.Voice-calling: You can talk to the other partyimmediately after hearing a confirmation tone. Youwill not hear a ringback tone. You will not be able tohear the other party's voice until he or she answersthe call.• If the called party uses a single line telephone (SLT), Voice-calling is not available.• Rotary SLT users cannot use this feature.Customising Your Phone• 3.1.2 Changing Personal Settings Using Programming Mode—AlternateReceiving—Ring/VoiceSelect the alerting method, either ring or the other party's voice.RingRing HelloORAfter dialling an extension numberEnter .PT/SLTTalk.C.Tone orR.B.Tone