Business Telecommunications (BT); Transmission characteristics at 4-wire analogue interfaces of a digital Private Automatic Branch Exchange (PABX)

NEPLATNÁ vydána dne 31.8.1991

Business Telecommunications (BT); Transmission characteristics at digital interfaces of a digital Private Automatic Branch Exchange (PABX)

NEPLATNÁ vydána dne 31.8.1991

Integrated Services Digital Network (ISDN); Signalling System No.7; Message Transfer Part (MTP) to support international interconnection; Part 1: Protocol specification [ITU-T Recommendations Q.701, Q.702, Q.703, Q.704, Q.705, Q.706, Q.707 and Q.708 modified]

NEPLATNÁ vydána dne 15.9.2000

European digital cellular telecommunications system (Phase 1); Mobile application part specification; Part 1: Generic (GSM 09.02)

NEPLATNÁ vydána dne 28.2.1992

Integrated Services Digital Network (ISDN); Primary rate access - safety and protection; Part 1 : General

NEPLATNÁ vydána dne 31.8.1992

Integrated Services Digital Network (ISDN); Primary rate access - safety and protection; Part 2 : Interface Ia - safety

NEPLATNÁ vydána dne 31.8.1992

Integrated Services Digital Network (ISDN); Primary rate access - safety and protection; Part 3 : Interface Ia - protection

NEPLATNÁ vydána dne 31.8.1992

Integrated Services Digital Network (ISDN); Primary rate access - safety and protection; Part 4 : Interface Ib - safety

NEPLATNÁ vydána dne 31.8.1992

Integrated Services Digital Network (ISDN); Primary rate access - safety and protection; Part 5 : Interface Ib - protection

NEPLATNÁ vydána dne 31.8.1992

Integrated Services Digital Network (ISDN); Basic access - safety and protection; Part 1: General

NEPLATNÁ vydána dne 31.8.1992