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Cell phones: CDMA vs. GSM
Will SPRINT CDMA Roam on Verizon CDMA & Vice Versa
by Chrismixx - 11/24/08 1:35 PM In reply to: CDMA vs. GSM by loimnSay you have a SPRINT phone and there is no Sprint coverage where your at but there is Verizon Coverage will it automatically latch on and roam off of a verizon signal and/or vice versa.
Can you relie on having a solid CDMA signal if one carrier has coverage while your primary carrier doesn't have signal in the location.
These days most carriers have free roaming so will that improve signal quality interchangedly between CDMA networks regardless of the carrier?
Yes and maybe....
by jgvillan - 11/25/08 9:42 AM In reply to: Will SPRINT CDMA Roam on Verizon CDMA & Vice Versa by ChrismixxHonest, this is just speculation on what I know between AT&T and T-Mobile.
Yes - A Verizon phone can work on Sprint's network and vise-versa.
Maybe - In your question on wireless connectivity between the two for coverage, T-Mobile has a similar service agreement with AT&T where if there is no native coverage from T-Mobile, but with a strong AT&T signal, a T-Mo phone can roam within AT&T without charges. However, that may not be the case between Verizon and Sprint. If there is such an agreement, local or otherwise, then you got your answer. Best bet is to contact your cell provider and simply ask or a web site with their signal coverage.
CDMA vs. GSM
by Pathfinder Tom - 1/21/05 12:00 PM In reply to: Re:CDMA vs. GSM by dave1973YOu are almost correct about the countries that use CDMA. GSM is used here in the US and Europe mainly. China is split between the two. Australia ia mostly GSM. Japan is split between CDMA and their own digital network. CDMA is prodominate in S. America & India. GSM is a little older and doesn't have the potential for the future data applications. GSM speeds have just about peaked with the EDGE technology while CDMA speeds will reach DSL speeds in many markets this year. I am convinced the future is CDMA because of this. GSM is great for voice, but the future is in data and voice over IP(VOIP)applications and CDMA is far ahead in that arena.
CDMA vs GSM
by kajuja - 8/15/05 12:58 PM In reply to: CDMA vs. GSM by Pathfinder Tomthe difference between the two, is the spectrum under which the two operates.
CDMA offeres better quality of data, also offers limited dropped calls than GSM.
CDMA has no simcard unlucky GSM
the coverage is wider for CDMA.
Not really
by sukhen - 9/19/05 8:52 AM In reply to: Re:CDMA vs. GSM by dave1973We have been using CDMA in India also for almost 3 years.
CDMA vs GSM
by CND Man - 1/2/06 11:38 PM In reply to: Re:CDMA vs. GSM by dave1973Same old same old... CANADA has Both GSM & CDMA and one Cell provider here may soon have GSM & CDMA phones. the diffrence between CDMA and GSM Boils down to CDMA being more secure as the digial encryption is then broken down in to the CDMA protocals and then encrypted in CDMA. CDMA is not as popular in other countries due to the fact that in most GSM nations there are so meny providers that is is just mor partical. in the US and Canada you take a CDMA and a GSM lets say Treo 650 and about 89% of the time CDMA will be better. Droped calls, repeat messages, "T"Boned calls are all the facts of life with GSM in North America.
Re:CDMA vs. GSM
by loouloou - 4/14/04 8:56 AM In reply to: CDMA vs. GSM by BlazedudeCDMA stands for Code Division Multi Access. What happens with this service is that many conversations share one cell but based on the code assigned to the discussion will determine at which section your conversation packet will enter the stream to the cell at the tower, then passed to the land lines and to the receivers phone.
GSM stands for Global Satellite Messaging and conversations are passed from the closest cell tower, to a satellite, and then to your receiving party.
CDMA has been adopted by IEEE (I believe) to be the standard for future broadband - can't remember the specifics. However, Verizon is the only main stream cellular provider I know of that uses CDMA. The others (AT&T, Cingular, TMobile) use GSM as their main standard.
Re:Re:CDMA vs. GSM
by roylow - 4/19/04 2:23 AM In reply to: Re:CDMA vs. GSM by loouloouCDMA able to connect to both base station and determine whether to decode from one or two signal receive from either base station.
But for GSM at any one time you are allow to connect to one base station to receive and decode data.
Re:Re:CDMA vs. GSM
by hikeez - 4/22/04 9:47 AM In reply to: Re:CDMA vs. GSM by loouloouSprint uses CDMA as well. CDMA will give faster internet connections than GSM
Re:Re:CDMA vs. GSM
by brewer - 4/25/04 9:59 AM In reply to: Re:CDMA vs. GSM by loouloouJust wanted to point out that GSM stands for Global System for Mobile Communications and the name really stands for the biggest advantage for the user - the GSM operators have through their GSM Forum managed to drive toward a truly global standard which means that you can actually use your phone almost globally - even in some cases here in the United States. Unfortunately our operators doesn't seem to get it over here despite all marketing hype about "coast to coast coverage" etc. and North America is still very much like a developing country when it comes to cellular phones.
Re:Re:Re:CDMA vs. GSM
by paulbrow - 5/15/04 2:47 AM In reply to: Re:Re:CDMA vs. GSM by brewerYou are so correct. The States for whatever reason seems to want to convert to world standards. It often makes life so miserable for those of us that travel. GSM is a world standard that I can use nearly everywhere in the world, and until just very recently it wouldn't work stateside. Still have to carry a GSM phone that is capable of 2 system types though as the States is still one of a kind frequency wise.
Re:Re:CDMA vs. GSM
by jak3 - 11/6/04 2:40 PM In reply to: Re:Re:CDMA vs. GSM by brewerI been using CDMA for about 5years now.
Guess what both systems are fine, HOWEVER, GSM yes it's global but, how many of you REALLY travel outside the country, let alone the city, enough times to validate GSM service?
GSM phnoes have more toys - better mp3 player capabilities and ringtones, and just overall better selection of phones.
But did you buy an mp3 player to play music? or a phone to communicate?
Best analogy of GSM - in a room full of people imagine everyone trying to have a conversation with each other, but instead of saying full sentences, everyone said one word at a time, until everyone said their one word. Then it would start back at the first person and say his second word, and so on.
CDMA, in a room full of people (double or even triple the amount of people i might add), imagine everyone talking to each other, but in a different language at the same time.
Anyways coverage is much better with CDMA 110 kms versus GSM 35kms.
Do a search, each have their own pros/cons.
As much as I want a kick ass phone with a lot of toys. Ill stick with my coverage, so I won't get a lot of dropped calls.
America is behind in cellular technology? If that were the case why is Qualcomm(based in Cali) such a strong leader and force to be messed with in cellular technology.
You think people got stupid all of a sudden just didn't know what to do anymore and stopped progressing?
Try to get a job with one of these companies and see if you get one, it's not easy. There are smart people working on these things and I have a pretty good idea that they know what they're doing
Re: CDMA vs. GSM
by tommo - 1/29/05 4:27 AM In reply to: Re:Re:CDMA vs. GSM by jak3Who the hell are Qualcomm? I seem to remember they made modems back in the 80's, but in global terms they're nowhere nowadays.
Re CDMA, sadly the US just loves to defy international standards and organisations, (Kyoto, ICC, UN, GSM) and adopt quaint inventions. GSM and 3GSM really are the future. If people complain about GSM coverage, well they're living in a country where carriers just haven't provided enough masts. Lack of capacity or bandwidth is not GSM's fault.
By the way, aside from outstanding call quality, battery life and synchronisation with my PC, I can watch music videos and TV news on my 3GSM fone. Meanwhile, in backward America I'm told people use things called pagers...
I could go on and on.
CDMA vs. GSM - Qualcomm is alive and welL
by ZonkerBreeblebox - 9/17/05 12:54 PM In reply to: Re: CDMA vs. GSM by tommoQualcomm is far from ''nowhere'' these days. As you say, 3GSM is the future (along with 1xEV-DO) and guess what? 3GSM *is* CDMA (UMTS/WCDMA) and Qualcomm gets a royalty for every 3GSM device sold worldwide. As for defying international standards, IS-95 is an international standard for CDMA.
Here in Canada
by CND Man - 1/3/06 12:23 AM In reply to: Re: CDMA vs. GSM by tommoHere in Canada we have CDMA phone that can play TV shows and everything that GSM and 3GSM will do.
CDMA is becoming stronger in some Countries when Canada and the US started using CDMA, GSM was not a standard and CDMA took off and now there at millions of CDMA towers up and that is costly to swap over a network to GSM... the only real problems I have with GSM it the timing protocols and the fact that GSM phones don't roam well when you are using them.
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