1 Scope

04.723GPPCall Deflection (CD) supplementary serviceStage 3TS

This Global System for Mobile communications Technical Specification specifies the procedures used at the radio interface (reference point Um as defined in GSMĀ 04.02) for normal operation of Call Deflection (CD) supplementary service. Provision and withdrawal of supplementary services is an administrative matter between the mobile subscriber and the service provider and cause no signalling on the radio interface.