Motorola i580
Dual-Mode CDMA/iDEN?
Ok, so we've probably all heard of Sprint/Nextel's supposed release of a dual-mode phone.
I would like to table this thought - TDMA/GSM dual-mode (gait) phones failed so miserably that carriers dropped them as fast as a habitual roamer...
Essentially, we are looking at the same frequency split: 850/1900 Mhz. So what makes the new Sprint/Nextel think that this will work?
Press release from the company suggests that there will be no cross-technology PTT in the near future. It is my understanding that the CDMA ch/fq will carry voice and data whilst iDEN will carry PTT. Is this correct? And what ever happened to the rumor of the DoD and select Gov. agencies (via the FCC) taking over the iDEN technology for their communication...
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I would like to table this thought - TDMA/GSM dual-mode (gait) phones failed so miserably that carriers dropped them as fast as a habitual roamer...
Essentially, we are looking at the same frequency split: 850/1900 Mhz. So what makes the new Sprint/Nextel think that this will work?
Press release from the company suggests that there will be no cross-technology PTT in the near future. It is my understanding that the CDMA ch/fq will carry voice and data whilst iDEN will carry PTT. Is this correct? And what ever happened to the rumor of the DoD and select Gov. agencies (via the FCC) taking over the iDEN technology for their communication...
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That sounds right to me. There is just no way they can make PTT work that good by using cross-technologies. iDEN is the ideal technology for that. The deal was that the government will be getting some, but not all, of Nextel's iDEN frequencies. Then, the FCC will reband the 800 mHz frequencies so that there is no interference, like there is today between Nextel and public safety. After all, it is the frequencies Nextel uses that are causing interference, not iDEN itself. So, Nextel will be able to keep some iDEN frequencies, which they will probably use for strictly Direct Connect, and the CDMA will come in for voice and data, since it is the better choice for those anyway. Now Sprint Nextel's main issue is building up their CDMA cove...
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