At the time of writing (2019), Mobile Networks have solutions that are based on Mobile Cross-Talk and Echo Cancellers in pool. This alleviates NEXT and FEXT line echoes.
NEXT - Near End Cross Talk
FEXT - Far End Cross Talk
VBR/ Wallis Dudhnath
Kent Davidson - 12th February 1999 (13:39 GMT)
I know that I'm probably not in the right Forum but I'm desperate. If you know someone or can directly help me please let me know.
I'm looking for consultant or expert in the field of audio feedback in cellular like device. Involves analog circuitry on standard fiberglass PCB, screwed together in an injection molded case. Looking for expert counsel to eliminate echo in the telephone of the user who is conversing with a user using our device. There is no echo for the user using our device.
If you rather talk with us directly ask for Kent Davidson at 403-547-7159