latest 3G cell phones - General Topics

you may find here 3G cell phones producer list:
http://www.3gnext.com/phones

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3G Nokia Phones

check out this, here I have found a complete list of Nokia 3G cell phones
http://www.3gnext.com/Nokia_--p1_3g=1.html

Which phones are capable of using Tmobile 3G network

As the title indicates I am curious if there exists any phones outside of those offered by Tmobile that are capable of using its 3G network (1700 & 2100 MHz). None of their 3G phones catch my eye and am curious if anyone can point me in the direction of some other possibilities.
Thanks for your time...
Jay
Att and tmobile use different bands for 3g.... so i know none of att's will work. (alltel i really doubt, but would have to look it up) Cell providers do it on purpose to lock there services to there own phones for good.... So you'll probably have to switch providers or settle for 2g speeds
I have not seen any devices outside of Tmob usa that have their strange 3g 1700/2100 combined bands...unfortunately!

Does 2G or 3G affect the voice quality??

I understand that 2G and 3G has more to do with data speed. However does the voice quality differ between the two??? I can't find much consensus on the subject. Thank you.
unless your operator have strange equipment it would be 100% the same
A wireless communications guy who is a fanatic with cell phones on youtube (aka absalon3) once said that his Nokia E90 kept dropping calls because it did not support the U.S. 3G frequencies at his carrier.
So yes, if you don't have 3G access or subscription, than your phone is more likely to have a weaker signal--hence the dropped calls.
poetryrocksalot said:
A wireless communications guy who is a fanatic with cell phones on youtube (aka absalon3) once said that his Nokia E90 kept dropping calls because it did not support the U.S. 3G frequencies at his carrier.
So yes, if you don't have 3G access or subscription, than your phone is more likely to have a weaker signal--hence the dropped calls.
Click to expand...
Click to collapse
i dont think so. gsm 3g devices can have simultaneous voice and data connections 3g and voice are totally separate.
josefcrist said:
i dont think so. gsm 3g devices can have simultaneous voice and data connections 3g and voice are totally separate.
Click to expand...
Click to collapse
Check out Absalon3's video:
http://www.youtube.com/watch?v=FNrRNUZfqkQ
He says that the lack of 3G hardware meant that he got dropped calls.
On another video he claims to have a degree on some sort of communications thing. I haven't looked for the video because I don't know which one it is on the top of my head. Anyways it sounded as if his 'degree' made him an expert on cell phones.
I also have a Nokia E90 and the reception isn't as good as my North American version of Xperia X1. However, I do understand that reception is also determined by the other hardware factors.
Well thank you guys, this is why I had trouble finding out definitive info on this. It seems that there are no hard fact, just anecdotal evidences.
I am trying to decide whether I have to go with a higher price Telus HTC Hero (3G on ATT), or I can stick with a cheaper price HTC Hero (2G on ATT). I don't give a crap about data, however, voice is very important, after all it is a phone.
"gsm 3g devices can have simultaneous voice and data connections 3g and voice are totally separate."
not just gsm 3g devices
gsm since gprs (1g) have supported simultaneous voice and data
that is if the operators equipment support it too
had simultaneous data and voice on all my 1g gsm smartphones
Many 3G operators have their 2G service provided by another operator in low coverage areas, so when moving between 3G and 2G and vice versa there can sometimes be line drops.
The actual voice quality between a 2G phone call and a 3G phone call is no different.
Research your desired operator's coverage in your area for both 2G and 3G, then decide.
From what I've seen, and also from the maps on their websites.
If you have a phone with 2G and 3G you have the most coverage.
Now if you have a 2G device you will only have coverage in the 2G area, so if there are places that only have 3G in their area, you will get a dropped call.
This is practically useless for the large decent carriers like AT&T and Verizon who have a lot of coverage. But maybe it's a problem for some other carriers.
Also from the maps it looks like most 2G area have 3G.
Just my .02, I have nothing really to back this up. Best thing you can do is make sure you have good coverage.
ATT's Webpage for Coverage
There are other places where you can find a carriers coverage.

GSM LTE phones vs CDMA LTE Phones radios

I found an interesting article about radios and LTE connections. The Radio Performance Disparity of the Galaxy Nexus on GSM and CDMA - Mobile Central - Binary Outcast
I have the oppurtunity to either go with ATT or Verizon. The article makes it seems that GSM is a better bet for LTE phones especially in areas with poor reception. I am hoping people can provide insight/comments on LTE phones for GSM and CDMA carriers and the article.
The Radio Performance Disparity of the Galaxy Nexus on GSM and CDMA
The Samsung Galaxy Nexus. It's Google's flagship phone that is designed to complement the Android 4.0 “Ice Cream Sandwich” operating system software. With high end specifications (for 2011) and highly optimized software, the Galaxy Nexus is supposed to show off what Android can really do without any interference from carriers and OEMs. However, that wound up not truly being the case in the United States with the CDMA/LTE variant for Verizon Wireless and Sprint.
By and large, the CDMA/LTE variant sold by Verizon Wireless and Sprint is the same as the original HSPA+ model that is now sold by Google on the Play Store (at least in terms of hardware). It has the same CPU, RAM, NFC chip, screen, cameras, etc. The only hardware difference is the cellular radio structure.
The original UMTS HSPA+ model uses an Intel XG626 baseband modem that is connected to an antenna structure that supports quad-band GSM and penta-band WCDMA for global usage. For Americans, it means that it works on the HSPA+ networks for both AT&T and T-Mobile USA.
The CDMA/LTE variant uses a VIA Telecom CBP7.1 CDMA2000 baseband modem, connected to an antenna structure that supports dual-band CDMA2000. The Sprint model adds another CDMA2000 band that is exclusive to Sprint. Both CDMA/LTE variants use a Samsung CMC221 LTE baseband modem, but the Verizon Wireless variant is set up for LTE band class 13 (Upper 700MHz C block), while the Sprint variant is set up for LTE band class 25 (U.S. Extended PCS, also known as PCS+G). The Verizon Galaxy Nexus has a user-accessible SIM card slot while the Sprint one does not.
While the Intel (formerly Infineon) baseband used to be troublesome on AT&T's network (as many iPhone users that didn't own an iPhone 4S can attest to), the latest generation of basebands work fine on both AT&T and T-Mobile. With 3GPP Release 7 support, it has a maximum downlink throughput of 21Mbps while it has a maximum uplink throughput of 5.76Mbps. In general, the Galaxy Nexus works very well on AT&T and T-Mobile.
However, it isn't the same for the CDMA variants of the Galaxy Nexus. The VIA Telecom CDMA chip is notorious for weak performance. Other notable devices that use the chip are the Samsung DROID Charge and the Samsung Stratosphere. Searching on the web about these devices turns up a lot of complaints about CDMA service quality with these devices.
Jason Perlow of ZDNet experienced more than his fair share of issues while trying to live off of the 4G LTE connection his Galaxy Nexus provided. But he was trying to live off of 4G LTE, not CDMA2000. So why was he affected? Well, the truth is, CDMA/LTE devices require both radios to be active and connected. Not to mention, network authentication and feature provisioning actually goes through the CDMA system, not the LTE one.
The bridge between CDMA2000 and LTE is rather brittle and is prone to failure, because LTE wasn't designed to be bridged with CDMA2000 like that. It was intended to be installed alongside GSM and WCDMA networks, and it handles it a lot better with those networks. So when something goes wrong in the rather terribly buggy CDMA system, the whole phone can and usually does fail. If Verizon Wireless had upgraded the CDMA2000 system to UMTS HSPA+ like most other CDMA2000 carriers across the globe, it would have avoided dealing with this problem.
Also, the CDMA/LTE Galaxy Nexus lies to you (at least, it does now). Originally, the “bars” that indicate signal strength would actually indicate the signal strength of LTE if it was connected to an LTE network. When everyone started complaining about how weak the signal was compared to the Motorola DROID RAZR and Motorola DROID Bionic, Anandtech investigated. It turned out that the signal strength was actually accurate, and that LTE signals are incredibly weak. Previous devices used the CDMA signal strength to determine how many “bars” of signal you have. The Galaxy Nexus did not. It used the LTE signal strength when it was connected to LTE, and the CDMA signal strength when it wasn't. Verizon Wireless issued an update shortly afterward that changed the behavior to match older LTE devices. Newer LTE devices do the same as well.
Combining the fact that the Galaxy Nexus has to work incredibly hard to maintain an LTE signal with the fact that the CDMA2000 radio is horrible and has a difficult time holding onto the connection will lead anyone to the conclusion that it is a recipe for disaster. Is it any wonder why Jason Perlow and many others have so many problems with the CDMA/LTE version of the Galaxy Nexus? Not really.
Of course, this is excluding all the issues with timely updates that Verizon Wireless has caused for Galaxy Nexus owners. Including this issue just makes the problem worse. There are ways to work around some of the issues, though some workarounds will result in permanent degradation of performance. However, it doesn't mean anything if it takes forever for anyone to get any updates that implement them.
In the end, I really can't solidly recommend the CDMA/LTE version of the Galaxy Nexus to anyone. Nor can I recommend any CDMA2000 device that uses a VIA Telecom CDMA baseband modem. The pitfalls just make it a bad experience for everyone.[
Will the snapdragon S4 chip from Qualcomm help with this issue?
Techno Buffalo has an article about T-Mobiles transition to LTE and a T Mobile person stated that their enhanced backload will help T Mobile's LTE. will this help AT&T's LTE Too? http://www.technobuffalo.com/news/w...backhaul-is-the-key-to-a-users-4g-experience/
Here is another article talking about the challenge CDMA has with LTE when the LTE signal is weak
http://www.phonearena.com/news/How-...-you-dont-need-it-and-save-on-battery_id32990
small error?
Hey didn't have time to read what you wrote but gsm is 2g and wcmda is 3g and 4g and LTE is also 4g so what you wrote did not make much sense GSM WCMDA and LTE are 3 different types of radios and here is a tip lo let people help you faster dont add more to what you wrote edit it instead because now it looks like 3 people already helped you
thanks if it helped :good:
For me this is highly theoretical. I recently moved from Dayton, Ohio to Kingsland, Georgia with a Verizon Galaxy Nexus (CDMA). In both places, if I allowed the LTE radio, the phone would get too hot to handle comfortably, and 3G isn't that great either. But in my neighborhood, there is no AT&T or T-Mobile data signal at all. That severely limits practical choices.
One more http://www.extremetech.com/mobile/110711-what-is-lte/7

Always Manual Configuration settings in CDMA carrier companies

Hi all,
I've been having a hard time understanding the way CDMA companies work with mobile phones.
In Yemen, there are 4 carrier providers. 3 of which are GSM 2G companies and one which is CDMA LTE company.
The CDMA company is called Yemen Mobile.
Ever since they introduced 3G internet, all mobile devices had to be brought to IT geeks to configure devices to use 3G using DFS, CDMA workshop, or qpst and many other tools.
Now when the company introduced LTE, the same thing happened, people had to bring their devices to IT geeks working on shops to have them configure their mobile devices.
Standard configuration through mobile access points does not always work.
When I traveled to eygpt, I got a vodaphone SIM card and once I inserted the SIM, everything was configured automatically.
What is other companies worldwide have that Yemen Mobile doesn't?
This is frustrating. When I turn LTE data on, my phone becomes out of reach. I can't receive calls on as IT geeks say my phone cpu is snapdragon and I used the same phone in Eygpt with 4g working like a charm.
Can anybody explain?
UltimateX29 said:
Hi all,
I've been having a hard time understanding the way CDMA companies work with mobile phones.
In Yemen, there are 4 carrier providers. 3 of which are GSM 2G companies and one which is CDMA LTE company.
The CDMA company is called Yemen Mobile.
Ever since they introduced 3G internet, all mobile devices had to be brought to IT geeks to configure devices to use 3G using DFS, CDMA workshop, or qpst and many other tools.
Now when the company introduced LTE, the same thing happened, people had to bring their devices to IT geeks working on shops to have them configure their mobile devices.
Standard configuration through mobile access points does not always work.
When I traveled to eygpt, I got a vodaphone SIM card and once I inserted the SIM, everything was configured automatically.
What is other companies worldwide have that Yemen Mobile doesn't?
This is frustrating. When I turn LTE data on, my phone becomes out of reach. I can't receive calls on as IT geeks say my phone cpu is snapdragon and I used the same phone in Eygpt with 4g working like a charm.
Can anybody explain?
Click to expand...
Click to collapse
We all r out of luck until we get out of this goddamned place
UltimateX29 said:
Hi all,
I've been having a hard time understanding the way CDMA companies work with mobile phones.
In Yemen, there are 4 carrier providers. 3 of which are GSM 2G companies and one which is CDMA LTE company.
The CDMA company is called Yemen Mobile.
Ever since they introduced 3G internet, all mobile devices had to be brought to IT geeks to configure devices to use 3G using DFS, CDMA workshop, or qpst and many other tools.
Now when the company introduced LTE, the same thing happened, people had to bring their devices to IT geeks working on shops to have them configure their mobile devices.
Standard configuration through mobile access points does not always work.
When I traveled to eygpt, I got a vodaphone SIM card and once I inserted the SIM, everything was configured automatically.
What is other companies worldwide have that Yemen Mobile doesn't?
This is frustrating. When I turn LTE data on, my phone becomes out of reach. I can't receive calls on as IT geeks say my phone cpu is snapdragon and I used the same phone in Eygpt with 4g working like a charm.
Can anybody explain?
Click to expand...
Click to collapse
This is the main issue of CDMA companies with mobile phones. In the previous week I went for a tour out of the CDMA range and due to out of the range I haven't even open my website on phone to check it progress because of the net issue. When you switch from one mode to another so it stop even opening browsers.
UltimateX29 said:
Hi all,
I've been having a hard time understanding the way CDMA companies work with mobile phones.
In Yemen, there are 4 carrier providers. 3 of which are GSM 2G companies and one which is CDMA LTE company.
The CDMA company is called Yemen Mobile.
Ever since they introduced 3G internet, all mobile devices had to be brought to IT geeks to configure devices to use 3G using DFS, CDMA workshop, or qpst and many other tools.
Now when the company introduced LTE, the same thing happened, people had to bring their devices to IT geeks working on shops to have them configure their mobile devices.
Standard configuration through mobile access points does not always work.
When I traveled to eygpt, I got a vodaphone SIM card and once I inserted the SIM, everything was configured automatically.
What is other companies worldwide have that Yemen Mobile doesn't?
This is frustrating. When I turn LTE data on, my phone becomes out of reach. I can't receive calls on as IT geeks say my phone cpu is snapdragon and I used the same phone in Eygpt with 4g working like a charm.
Can anybody explain?
Click to expand...
Click to collapse
The CDMA technology approximately dead because the US Carriers which introduced it transfer its towers to a new LTE technology and uses VoLTE for voice calls.
In Yemen the situation is different because the company (Yemen Mobile) hasn't upgraded its equipment since CDMA/EVDO first days, and now the company want to be the first to introduce LTE services but it fails until now because the compatibility and their towers does not configured with right settings.
I have Galaxy S20 FE 5G from US cellular, I inserted a 4G sim to it, it's either works in CDMA or LTE modes.
can't work at the same time.
I tried to play with some settings in DFS but I finished with neither LTE data nor CDMA signal.
but luckily I restored EFS2 and now working either CDMA or LTE.
There is another carrier (GSM based) in Yemen called (YOU) just add the Access point to the phone and it will work immediately.

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