168 S-ICX (International) issued October 2000 S-ICX-50-700Chapter 5. Key Telephone Features Section 700 - Operation• Voice Calling: Extension calls are connected immediately, without a ringing tone.• Tone Calling: A ringing tone is sent to the called extension.Extension Class of Service (COS) programming determines whether the default for the originatingextension is voice or tone calling. Regardless of the default, you can toggle between voice or tonecalling by entering the Tone-Voice Call feature code. For example, if the extension default is tonecalling, you can make a voice call to another extension by entering the Tone-Voice Call feature accesscode.OperationTo make a call using Intercom Calling:Hardware Requirements• N/AConsiderations• The Handsfree Answerback feature can be used to respond to only voice calls from otherextensions - not tone calls.• Both the called and calling parties must belong to an Extension COS that allows Voice Calling.Last Number RedialDescriptionLast Number Redial allows you to automatically redial the last number dialled by pressing the FL/Rkey.Action Result1. Lift the handset or press the ON/OFF key. Intercom dial tone2. Dial the extension number.3. If your extension is set for tone calling and you want tomake a voice call, enter 1.Or, if your extension is set for voice call and you want tomake a tone call, enter 1.• Dallied number displays• INT LED lights4. Speak when your call is answered.5. Replace the handset or press the ON/OFF key. INT LED goes off
