Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Path replacement Additional Network Feature (ANF) [ISO/IEC 13874 (2003), modified]

Standard published on 5.1.2004

Private Telecommunication Network (PTN); Specification, functional models and information flows; Call transfer supplementary service [ISO/IEC 13865 (2003) modified]

Standard published on 29.11.1993

Private Integrated Services Network (PISN); Specification, functional models and information flows; Call transfer supplementary service

Standard published on 30.5.1996

Private Integrated Services Network (PISN); Specification, functional models and information flows; Call transfer supplementary service [ISO/IEC 13865 (2003), modified]

Standard published on 5.1.2004

Private Telecommunication Network (PTN); Inter-exchange signalling protocol; Call transfer supplementary service

Standard published on 29.11.1993

Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Call transfer supplementary service [ISO/IEC 13869 (1995) modified]

Standard published on 15.11.1995

Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Call transfer supplementary service [ISO/IEC 13869 (2003), modified]

Standard published on 5.1.2004

Integrated Services Digital Network (ISDN); Syntax-based Videotex teleservice; Service description

Standard published on 23.8.1993

Integrated Services Digital Network (ISDN); Telephony 7 kHz teleservice; Service description

Standard published on 1.3.1994

Integrated Services Digital Network (ISDN); Telephony 7 kHz teleservice; Service description

Standard published on 22.3.1996