Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSS1) protocol; Network Integration Testing (NIT); ISDN end-to-end testing; Part 2: Implementation Conformance Statement (ICS) proforma, Abstract Test Suite (ATS) and partial Implementation eXtra Information for Testing (IXIT) proforma specification

Standard published on 15.2.1997

Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Designers´ guide; Part 1: Overview, technical description and radio aspects

Standard published on 15.5.1997

Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Designers´ guide; Part 2: Radio channels, network protocols and service performance

Standard published on 31.5.1997

Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Designers´ guide; Part 3: Direct Mode Operation (DMO)

Standard published on 29.2.2000

Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Designers´ guide; Part 4: Network management

Standard published on 15.7.1997

Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Designers´ guide; Part 5: Guidance on Numbering and addressing

Standard published on 31.7.1998

Attachments to the Public Switched Telephone Network (PSTN); General technical requirements for equipment connected to an analogue subscriber interface in the PSTN (Candidate NET 4)

Standard published on 15.8.1992

Attachments to the Public Switched Telephone Network (PSTN); General technical requirements for equipment connected to an analogue subscriber interface in the PSTN

Standard published on 15.12.1994

Attachments to the Public Switched Telephone Network (PSTN); General technical requirements for equipment connected to an analogue subscriber interface in the PSTN

Standard published on 31.3.1996

Attachments to the Public Switched Telephone Network (PSTN); General technical requirements for equipment connected to an analogue subscriber interface in the PSTN

Standard published on 30.1.1997