Specification for harmonized system of quality assessment for electronic components. Blank detail specification: low voltage varistors primarily for telephony applications (assessment level P)
Edition 1978-11-15

Glossary of electrotechnical, power, telecommunication, electronics, lighting and colour terms. Terms particular to telecommunications and electronics. Telephony
Edition 1993-11-15

Integrated Services Digital Network (ISDN) - Telephony 7 kHz, videotelephony, audiographic conference and videoconference teleservices - Digital Subscriber Signalling System No one (DSS1) protocol - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
Edition 2001-06-01

Integrated Services Digital Network (ISDN) - Technical characteristics of telephony terminals - Part 5: wideband (7 kHz) handset telephony
Edition 1999-12-01

Integrated Services Digital Network (ISDN) - Technical characteristics of telephony terminals - Part 6: wideband (7 kHz), loudspeaking and hands free telephony
Edition 1999-12-01

Integrated Services Digital Network (ISDN). 3,1 kHz telephony teleservice. Ent-to-end compatibility requirements for telephony terminals
Edition 1995-07-01

Integrated Services Digital Network (ISDN). Technical characteristics of telephony terminals. Part 2: PCM A-law handset telephony
Edition 1996-12-01

Integrated Services Digital Network (ISDN). Technical characteristics of telephony terminals. Part 3: Pulse Code Modulation (PCM) A-law, loudspeaking and handfree telephony
Edition 1997-03-01

Integrated Services Digital Network (ISDN) - Telephony terminals - Payphones
Edition 2000-02-01

Integrated Services Digital Network (ISDN) - Telephony 7 kHz, videotelephony, audiographic conference and videoconference teleservices - Digital Subscriber Signalling System No one (DSS1) protocol - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user
Edition 2001-06-01