2. a specifier avant la fin 1987 pour mise en oeuvre en 1988-93 : - audioconference et videotex ameliores; - information de taxation: - rappel automatique sur abonne occupe; - renvoi temporaire; - libre appel; - identification d'appels malveillants; - identification du demande.
2. Services to be specified before the end of 1987 for implementation in 1988-93 : - improved audioconferencing and videotex, - advice of charge, - automatic recall of engaged subscriber, - temporary diversion, - identification of malicious calls, - called user identification.
