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Cellular Phone Forum / General / General Topics / August 2005New to cell phones. Do all cells operate in half-duplex?
I have a Nokia 6360 activated on the CallPlusWireless prepaid plan, which uses the old AT&T TDMA network. I've only used it a few times. While I am speaking, the phone cuts off reception from the other phone. The earpiece goes silent. So it works like half duplex - only one side can talk at a time. Actually, kinda like a speakerphone. So my questions are: Do all cell phones work this way? If not - do I have a bad phone, or an incorrect setting of some kind? Or is this just a TDMA thing? Or an AT&T/Cingular thing? Any help would be appreciated. no > I have a Nokia 6360 activated on the CallPlusWireless prepaid plan, > which uses the old AT&T TDMA network. [quoted text clipped - 14 lines] > > Any help would be appreciated. >I have a Nokia 6360 activated on the CallPlusWireless prepaid plan, >which uses the old AT&T TDMA network. [quoted text clipped - 14 lines] > >Any help would be appreciated. In general, most/all cell phones are full duplex.  SignatureSome mistakes are too fun to make only once. Correct, however, most speaker phones on cell phones are half-duplex. >>I have a Nokia 6360 activated on the CallPlusWireless prepaid plan, >>which uses the old AT&T TDMA network. [quoted text clipped - 16 lines] > > In general, most/all cell phones are full duplex. >Correct, however, most speaker phones on cell phones are half-duplex. Not just on cell phones, most speaker phones anywhere are half-duplex, except for high end phones (typically those designed as conference room phones) which have active echo cancellation. SignatureWarning Dates in Calendar are closer than they appear. >>Correct, however, most speaker phones on cell phones are half-duplex. > > Not just on cell phones, most speaker phones anywhere are half-duplex, > except for high end phones (typically those designed as conference room > phones) which have active echo cancellation. Maybe 10 years ago, but not now |
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