3.2.6 Intercom CallingDescriptionAn extension user can call another extension user.About the floating extension numberVirtual extension numbers can be assigned to resources to make them appear as extensions. This feature isalso known as Floating Station. These numbers are defined as floating extension numbers and can beassigned as a group extension number etc. Floating extension numbers can be dialed by an extension user.ImportantFWD No Answer Time is used as the timer for forced call disconnection. For more information, refer to3.1.9 Call Forwarding (FWD).ConditionsConditions NoteExtension numbers and names are assigned to all extensions.After dialing an extension number, the following tone is heard on thecaller side.• Ringback tone: Indicates a connection is being made to the calledextension• Busy tone: Indicates the called extension is busy / Indicates thedialed extension number is invalidWhen a call is received at an extension, the extension number andname which made the call are indicated at the extension whichreceives the call.Through system settings, it is possible to make an intercom call bypressing the DSS key without going off-hook.Refer to 4.1 DSS KeyPIL Reference2.2.5 PBX Configuration—[1-5] System—Timers2.3.1 PBX Configuration—[2-1] Extension—Port2.3.3 PBX Configuration—[2-3] Extension—Flexible Buttons3.2.7 RedialDescriptionEvery extension automatically saves recently dialed external telephone numbers to allow the same numberto be dialed again easily.OperationFor all Extensions:Enter the redial feature number while a dial tone is heard.(Refer to 2.1.1 Feature Number Lists for User)For KX-HDV series SIP phones:Press the [REDIAL] button while a dial tone is heard.3.2.6 Intercom CallingFeature Manual 41