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Replying to:  Half Duplex Speakerphone??? by spellicano   Sep 29, 2009, 1:31 PM

Re: Half Duplex Speakerphone???

by Rich Brome (Moderator)    Sep 29, 2009, 4:57 PM

True full-duplex speakerphones are somewhat rare in cell phones. It requires relatively sophisticated sound processing to prevent feedback. Most speakerphones in cell phones are half-duplex, but most do a good enough job detecting who's speaking - and switching quickly - that you wouldn't notice. Really, most people would be surprised to learn that their phone's speakerphone is technically half-duplex.

It's only if you have a group of people gathered around a phone using it to have a conference call meeting that you really need full-duplex. Most people don't do that with their phones.

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