Nokia Scrambles To Offer EV-DO Phones
one reason why UMTS/ HSDPA will be more popular than EV-DO among carriers
All-IP with IMS is the future, and that's where everyone is headed with EV-DO rel A + VoIP. It made EV-DV obsolete before it even had a chance.
What the CDMA companies are looking at now is EV-DO rel A plus VoIP, eliminating the need for circuit-switched voice altogether. Qualcomm demonstrated it at CTIA. I tried it, and it worked quite well. In good signal conditions, it can actually have *less* latency than 1xRTT! 😳
It's a good technology, and Sprint-Nextel and Verizon are already talking about testing it. It's the reason EV-DV is basically dead. By moving to an all-IP architecture, it's actually much more advanced than standard UMTS. (Although all-IP is possible with UMTS-HSDPA, too.)
But this is really pretty different from something like Vonage or Skype. This is VoIP since it uses IP, but it does not run over the Internet, which immediately eliminates most of the QoS issues that might affect VoIP most people are used to.
This is being designed by Qualcomm as a new standard. They already have it working at performance levels that meet or exceed 1xRTT. I've tried it, and it does seem to work as advertised.
pcrisp07 said:How'd you come to that conclusion? Qualcomm's not scrapping their evolution data efforts all together...just EV DV.
If Qualcomm scraps its efforts to make EV-DV an industry leading technology then UMTS looks like the way to go since it supports both voice and data.
The vast majority of U.S. carriers have chosen CDMA. To change at this point would constitute a complete network rebuild which is not going to happen.
EVDO release a and HSDPA compete well with each other. Keep in mind that these technologies are evolving and in two years what we say is cutting edge today will become the everyday technology. The industry is moving towards a WIFI type network with VOIP. Nextel is testing Flarion in South Carolina and the results are positive.
SPCSVZWJeff said:
UMTS/HSDPA will be used in the states by Cingular, T-Mobile and smaller regional carriers that have chosen the GSM direction to 3G.
The vast majority of U.S. carriers have chosen CDMA. To change at this point would constitute a complete network rebuild which is not going to happen.
EVDO release a and HSDPA compete well with each other. Keep in mind that these technologies are evolving and in two years what we say is cutting edge today will become the everyday technology. The industry is moving towards a WIFI type network with VOIP. Nextel is testing Flarion in South Carolina and the results are positive.
Actually, many of the smaller regional companies are gsm. Many of them do not ha...
(continues)
PhoenixAshes said:...SPCSVZWJeff said:
UMTS/HSDPA will be used in the states by Cingular, T-Mobile and smaller regional carriers that have chosen the GSM direction to 3G.
The vast majority of U.S. carriers have chosen CDMA. To change at this point would constitute a complete network rebuild which is not going to happen.
EVDO release a and HSDPA compete well with each other. Keep in mind that these technologies are evolving and in two years what we say is cutting edge today will become the everyday technology. The industry is moving towards a WIFI type network with VOIP. Nextel is testing Flarion in South Carolina and the results are positive.
Actually, many of the smaller regional co
(continues)
This forum is closed.