Terminal Equipment (TE) - Attachment requirements for pan-European approval for connection to the analogue Public Switched Telephone Networks (PSTNs) of TE supporting the voice telephony service in which network addressing, if provided, is by means of Dual Tone Multi Frequency (DTMF) signalling
Edition 1999-09-01

Alarm systems - Part 7-11: Message formats and protocols for serial data interfaces in alarm transmission systems - Serial protocol for use in digital communication systems using CCITT V23 signalling at interfaces with the PSTN (IEC 79/182/CDV)
Edition 1999-10-01

Integrated Services Digital Network (ISDN) - Public Switched Telephone Network (PSTN) - Universal Access Number (UAN) service - Service description
Edition 2001-03-01

Integrated Services Digital Network (ISDN) - Public Switched Telephone Network (PSTN) - Virtual Card Calling (VCC) - Service description
Edition 2001-03-01

Integrated Services Digital Network (ISDN) - Public switched Telephone Network (PSTN) - Premium Rate (PRM) service - Service description
Edition 2001-05-01

Integrated Services Digital Network (ISDN) - Public Switched Telephone Network (PSTN) - Televoting (VOT) service - Service description
Edition 2001-03-01

Terminal Equipment (TE) - Narrowband networks (PSTN or ISDN) - Access to interactive audio-visual retrievial services without datafacility - Access for ISDN or PSTN videophony terminals to audio-visual databases
Edition 2000-11-01

Digital cellular telecommunications system (phase 2). Signalling requirements on interworking between the Integrated Services Digital Network (ISDN) or Public Switched Telephone Network (PSTN) and the Public Land Mobile Network (PLMN) (GSM 09.03, version 4.0.3)
Edition 1999-02-01

Digital cellular telecommunications system (Phase 2). Interworking between the Public land Mobile Network (PLMN) and the Integrated Services Digital Network (ISDN) or Public Switched Telephone Network (PSTN) (GSM 09.07, version 4.13.0)
Edition 1999-05-01

Integrated services digital network (ISDN) - Narrowband multi-service delivery system (NMDS) - Part 6: abstract test suite (ATS) and partial protocol implementation extra information for testing (PIXIT) specification for the NMDS layer 2 PSTN-GW function (NTN side) (V1.1.1)
Edition 2014-03-19