Digital Enhanced Cordless Telecommunications (DECT) - Integrated Services Digital Network (ISDN); ISDN Mobility protocol Interworking specification Profile (IMIP) - Part 1: DECT/ISDN interworking for Cordless Terminal Mobility (CTM) support (Endorsement of the English version EN 301361-1 V 1.1.1 (1999-10) as German standard)