Broadband Integrated Services Digital Network (B-ISDN); Signaling ATM Adaptation Layer (SAAL); Service Specific Co-ordination Function (SSCF) for Support of Signaling at the User-Network Interface (UNI); Part 1: Specification of SSCF at UNI
Universal Personal Telecommunication (UPT) - UPT Phase 2 - Functional Specification of the Interface of a UPT Integrated Circuit Card (ICC) and Card Accepting Devices (CADs) - UPT Card Accepting Dual Tone Multiple Frequency (DTMF) Device
Universal Personal Telecommunication (UPT) - Access Devices Dual Tone Multi Frequency (DTMF) Sender for Acoustical Coupling to the Microphone of a Handset Telephone