ATIS 0100302:1989 (R2011)
ATIS 0100302:1989 (R2011) Digital Processing Of Voice-band Signals-line Format For 32 Kbit/s Adaptive Differential Pulse-code Modulation (adpcm) Defines line formats used in Bundle, Transition, and Robbed-Bit Signaling modes for transcoded channels comprising channel pulse rates of 32 kbit/s combined in a line format operating at a pulse rate