Access and Terminals (AT) - Special quality voice bandwidth 2-wire analogue leased line (A2S) - Connection characteristics and network interface presentation
Edition 2001-11-01

Access and Terminals (AT) - Ordinary and Special quality voice bandwidth 2-wire analogue leased lines (A2O and A2S) - Terminal equipment interface
Edition 2001-11-01

Access and Terminals (AT) - Ordinary quality voice bandwidth 4-wire analogue leased line (A4O) - Connection characteristics and network interface presentation
Edition 2001-11-01

Access and Terminals (AT) - Special quality voice bandwidth 4-wire analogue leased line (A4S) - Connection characteristics and network interface presentation
Edition 2001-11-01

Access and Terminals (AT) - Ordinary and Special quality voice bandwidth 4-wire analogue leased lines (A4O and A4S) - Terminal equipment interface
Edition 2001-11-01

Access and Terminals (AT) - Analogue access to the Public Switched Telephone Network (PSTN) - Subscriber line protocol over the local loop for display (and related) services - Part 1: On-hook data transmission
Edition 2001-04-01

Access and Terminals (AT) - Analogue access to the Public Switched Telephone Network (PSTN) - Subscriber line protocol over the local loop for display (and related) services - Part 2: Off-hook data transmission
Edition 2001-04-01

Access and Terminals (AT) - Analogue access to the Public Switched Telephone Network (PSTN) - Subscriber line protocol over the local loop for display (and related) services - Part 3: Data link message and parameter codings
Edition 2001-04-01

Access and Terminals (AT) - 34 Mbit/s and 140 Mbit/s digital leased lines (D34U, D34S, D140U, D140S) - Network interface presentation
Edition 2001-11-01

Access and Terminals (AT) - 34 Mbit/s digital leased lines (D34U and D34S) - Connection characteristics
Edition 2001-11-01