e separated, the

digital signals are converted back to analogue and delivered to the received phone.

While all these conversions are inaudible when voice is transmitted over the phone lines it can make digital communication difficult. Items of interest include A-law to mu-law conversion (and vice versa) on international calls; robbed bit signalling in North America (56 kbps <--> 64 kbps); data compression to save bandwidth on long-haul trunks; signal processing such as echo suppression and voice signal enhancement such as AT&T TrueVoice.

Last updated: 2000-07-09

Nearby terms:

receiving end the channels are separated, thee separated, theof

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