An adaptive analog echo/near-end crosstalk (NEXT) cancellation system
includes a selector that outputs a first error control signal when a
first receive signal does not include a remotely transmitted signal and a
second error control signal when the first receive signal includes a
remotely transmitted signal. An echo/NEXT cancellation module
communicates with the selector and generates an estimated echo/NEXT
signal based on the first error control signal and a first transmit
signal when the first receive signal does not include a remotely
transmitted signal and based on the second error control signal and the
first transmit signal when the first receive signal includes a remotely
transmitted signal. A summing module receives the first receive signal
and the estimated echo/NEXT signal and generates an echo/NEXT filtered
receive signal by subtracting the estimated echo/NEXT signal from the
first receive signal.