communications (bit-robbing) The exchange of call control
information on the same channel as the telephone call or data
transmission. Since one bit in a frame is periodically used
for signalling instead of data, this is often referred to as
This is the reason why a
D1 channel in the T-carrier system
can only carry 56 Kbps of usable data instead of the 64 Kbps
carried by the
D0 channel in the E-carrier system.
(2000-03-10)