extension needs to be used, the extension can switch locations and service status with an extension on aphysical location (i.e., a location with a telephone).[Example]Extension settings can be switched allowing multiple extension users to use the same telephone asfollows:Service-inExtn. 102Extn. 101Service-outExtn. 101Service-outExtn. 101Service-inVirtualLocationExtn. 102Service-outVirtualLocationExtn. 102Service-outVirtualLocationService-in Service-inService-outService-outService-inExplanation:The extension user of extension 101 changes to service out mode. The extension user of extension 102switches extension settings and changes his extension to Service-in mode.Conditions• This feature is not available for PSs, T1 OPX extensions, and SIP extensions.• An extension personal identification number (PIN) is required to use this feature. (® 5.1.6 Extension PIN(Personal Identification Number))PC Programming Manual References4.9 [2-6-1] Numbering Plan—Main—Features— Walking ExtensionFeature Manual References20.1.2 Walking ExtensionOperating Manual References1.3.75 Walking Extension, Enhanced20.1.4 Whisper OHCADescriptionAn extension user can speak to a busy extension through the handset.Conditions• Class of Service (COS) programming determines which extensions can use this feature.• This feature is available when the calling and called extension use one of the following telephones:Document Version 2009-12 Feature Manual 34920.1.4 Whisper OHCA
