6-32 DBS 576 (USA) issued October 2000 576-36-700Chapter 6. DSLT Features Section 700 - OperationHot LineDescriptionHot Line enables you to immediately connect to another pre-assigned extension or speed dial numbersimply by lifting the handset. You do not have to dial any digits.OperationTo immediately connect to a pre-assigned extension or speed dial number:Hardware Requirements• N/ARelated Programming• FF5-5: Hot LineConsiderations• N/AIntercom CallingDescriptionThe System provides two methods of intercom calling:• 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.Action Result1. Lift the handset or press the ON/OFF key. Automatically connected to pre-assignedextension or speed dial number