States technical requirements under Section 22 of the telecommunications Act 1984 for terminal equipment for connection to analogue interfaces of public networks run by certain public telecommunications operators providing: a 2-wire presentation without capacitive termination, either earth calling, loop call- disconnect clearing, loop calling-guarded clearing or loop calling-unguarded clearing signalling methods, loop disconnect pulsing and multifrequency (MF) tone call routeing signalling, where the terminal equipment is either self or line powered.