gyrfalcon wrote:
Andrew Rothman wrote:
....A speaker phone, even a very good one, must make constant decisions about who talks and who listens. Headsets and handsets are bidirectional.
Most of the speaker phones that have been made in the last decade are full duplex. I do understand if there is a dislike for them, since many people use them inappropriately. In a quite room you shouldn't experience problems with acoustic echoes and feedback. Now if you're talking into your cellphone, that's a different matter.
Winner! When gyrfalcon writes "speaker phone", don't think "normal office phone on speaker/microphone operation". They *do* suck, and, as Andrew mentioned, are half-duplex.
Table-top, dedicated-function wall-powered speakerphones are full-duplex and have noise-cancelling circuitry built in. Polycom devices, when powered on, emit a "bong" sound to measure the acoustics of teh room they're in, and adjust the internal signal-processing circuits to match the room.
Now back to your regularly-scheduled topic.
Kimberman - you rock! Thanks for speaking up for all of us.
jb