Yep, only a full-bandwidth mu-law/A-law call over a T1/E1 or an aggregation of such is going to stream that many raw bits in each direction. Quickly transcode t

Yep, only a full-bandwidth mu-law/A-law call over a T1/E1 or an aggregation of such is going to stream that many raw bits in each direction. Quickly transcode to linear via a lookup table, sum the two sides into a single channel, shift right one bit, then compress, even as mp3, and you're easily at 1/8 the assumed size.