I did 🙂

And you took me seriously. I win! 😁

Thank you, thank you... I'll be here all week.

🤣 🤣 🤣 🤣

That is kinda funny... VZW has phones that work globaly, so does AT&T.. Did you miss that whole "quad band" thing so many GSM phones have? you know, the part that lets them work overseas since the rest of the world doesnt use the same GSM frequencies that the US does?


AT&T also picked a tech that had no future, hence is having to switch to another tech(WCDMA, a tech based on CDMA) for 3G serivce, as GSM has little to no 3G potential. At least VZW picked a tech with potential, and hence has had 3G services for much longer than AT&T because EVDO operates under the same frequencies as 1xRTT.

From your posts you are either ignorant of VZW and CDMA as a whole, or blantently lie to try to make VZW and CDMA look bad.

primus said:
That is kinda funny... VZW has phones that work globaly, so does AT&T.. Did you miss that whole "quad band" thing so many GSM phones have? you know, the part that lets them work overseas since the rest of the world doesnt use the same GSM frequencies that the US does?


AT&T also picked a tech that had no future, hence is having to switch to another tech(WCDMA, a tech based on CDMA) for 3G serivce, as GSM has little to no 3G potential. At least VZW picked a tech with potential, and hence has had 3G services for much longer than AT&T because EVDO operates under the same frequencies as 1xRTT.

From your posts you are either ignorant of VZW and CDMA as a whole, or blantently lie to try to make VZW and CDMA

...
(continues)

🤣

I think the only ignorant here is you. ATT (wireless) had 3G well before the merger. Also, by deploying UMTS/HSDPA (which is the natural upgrade path for GSM) they are (in no way) acquiring "another" technology. UMTS/HSDPA is to GSM just like EV-DO is to CDMA. Actually better cause is backward compatible which means that I can go in and out from 3G to 2G without losing or having to restart my data session. Can you do that outside an EVDO area?

Yes, they had 3g... in the form of EDGE which by most people isnt considered 3g.

I suggest you spend some time reading about UMTS, which has nothing to do with GSM at all other than it is the standard most GSM carriers are upgrading to. UMTS used by most GSM carriers is WCDMA, a tech derived from CDMA, not GSM. It is a new tech not an evolution.

EVDO is the evolution of CDMA, and is fully backwards compatible, unlike UMTS. You are getting the two techs confused as EVDO and 1xRTT dont have handoff problems like WCDMA and GSM do. So thank you for proving my point that you have no clue how CDMA and EVDO work.

UMTS only uses some of the CDMA standard for air interfaces only. It is still uses GSM's Mobile Application Part (MAP) core, and the GSM family of speech codecs. It is not CDMA based, more like a mixture of both. It is also the evolution of GSM. Why would it not be? It took base GSM, added a little flavor, and you get something better. THAT IS EVOLUTION. Just because it does not have the nice Qualcomm, Rev A or O behind it still does not seperate it from the fact that it is GSM evolved. Until it completely takes the GSM part out of the equation, then it will not be evolving. As far as the handoff issues are concerned, this only was an early issue due to spectrum allocation NOT b/c it is not backward compatible. So I will end this u...
(continues)

ygbhen said:
UMTS only uses some of the CDMA standard for air interfaces...

...It took base GSM, added a little flavor, and you get something better. THAT IS EVOLUTION.

So GSM improved and evolved by becoming more like CDMA. Thanks, makes sense. 🙂

WCDMA was a new tech created based off of CDMA, to implement that tech for exsisting networks the use of it was built off of the exsisting GSM infrastructure but the way it works isnt based off of GSM at all.

As far as backwards compatibility, you are telling me if you have a WCDMA only PC card that it will still utilize EDGE when a WCDMA signal isnt available?

Everything I am seeing lists it as requiring a seperate mode on the device, as from cingulars website
Global Compatibility with Wireless-GSM
UMTS/HSDPA (850/1900/2100 MHz)
GPRS/EDGE (850/900/1800/1900 MHz)

So if the technology is backwards compatible why does it still have to include the information for the GPRS/EDGE? Why doesnt it just list UMTS/HSDPA (850/1900/2100 MHz)...
(continues)