arnuld

I bought this from Reliance Digital in Hyderabad and been using it for 3 weeks so far. I bought it primarily for using Whatsapp and making phone calls. Here is my experience on both JIO and Handset: PROS: Data connection is ON almost 24x7. Speeds are like 3G, sometimes faster. Few times data connection does not work at some places, not that big a problem. I am satisfied. Signals quality is ok. Several times signals just disappear (those bars on top left corner). I thought my handset problem but two of my friends are using JIO SIM on Samsung and Lava A7+ phones and they have same problem. Hence not a handset problem but network problem. It happens like 5-7 times per day and it remains like that for 2-15 min. Bit less satisfied. Network Coverage is much better. I am using TATA DOCOMO and Aircel too and many times both don't have network but JIO has. Incoming/Outgoing calls are really tough business. JIO to JIO/Reliance/Aircel, all phone calls go smooth, connected in one try but for the rest you have to keep on trying anywhere from 2 to 20 times to get connected. Same for incoming from others. Completely unsatisfied Handset is okay. does not hang even if lot of apps are running. CONS: Handset Voice quality is very bad. I can understand only 50% of what other person is talking about and same for the person on other end. It is one of the worst voice quality in any handset I have ever experienced. Battery drains out very fast on 4G data ON 24x7. It does not even last till evening. I do use lot of whatsapp. I will advise to buy a better handset like RedMI 3S or something. Strange thing is when you look at the bill, Phone charger and Headset are listed as separate items from phone and charged separately. Just look at the bill. I paid 3499/- (Yes, I took 1 rupee back which every shopkeeper never thinks of giving back. As usual, gave it a vely old lady-beggar standing outside )

Hey Man, thanks for pointing out spelling mistake. Yeah. I noticed that in bill too, well that's original bill. I am using it till now 24x7 and its voice quality for both the people on phone is bad. Except that handset is very good at 3500/-

Its not handset problem. Reliance 4G LTE is not stable. I am in Hyderabad and several times a day my signals just disappear and I had the same thought that I got handset problem because it was cheapest 4G handset available (Flame 7S) but then my friend in Punjab had same problem there but using some other handset. Then one more friend told about same. I expected the network with issues, they are giving everything for free, what you expect -- a Beta Service. I guess it will become better over next 6 months

Well, it is on Wikipedia too. TATA is shutting down its CDMA business: https://en.wikipedia.org/wiki/Tata_DoCoMo

Hi guys, I just want to buy cheapest service provider, with coverage/network as good as TATA DOCOMO. I already have one TATA number, hence I want to go with new operator Aircel or Telenor. It is for local calls+SMS+2G or 3G, only within Hyderabad. Not choosing BSNL because some of friends have BSNL and they are not reachable half the time. What you suggest ? I dont have any preference of 2G/3G as long as I can get it to work most of the time. Thanks EDIT: I see whatever you buy, all 3 operators Reliance, Telenor and Aircel have same rates to off-net (other networks). All have same cheapest rate of25p/min using some rate cutters. So ,I see it does not matter which one you choose, the only criteria left is who provides better signal quality and more coverage. Any ideas ?

Guys, my friend has TATA CDMA (Hyderabad, Telangana). Yesterday he got call from TATA that he needs to port to TATA GSM because CDMA services will no longer be available. Yes, it is the death of CDMA in India.

I am using TATA DOCOMO GSM from last one month and I see its coverage in Hyderabad is very poor. I tried changing handsets but no help. I hardly get any signal and most of the times signlas just diappear while in call or sending message. Has anyone experienced same ?

From last 2 months I am using new TATA GSM number/SIM. I have old one too. Compared to earlier I see network connectivity has improved a lot and still require a lot of improvement. Many places in city I get dropped calls but mostly it works fine. It is one of the cheapest service providers I think.

Hey @mitJ@in , Yes. You are right. They cant work on both technologies. If you some handset manufacturer supprts CDMA then he has to pay royalties to Qualcomm, in GSM it is not so. 4G is evolution from 2G-HSPA, the evolution of CDMA was UMB (Ultra Mobile Band, developed in 2006) but Qualcomm dropped it in favor of 4G in 2008. What we call 3G is actually CDMA technology (if you look at the phones supporting 3G, you will notice the manual/box will say W-CDMA). 4G or LTE is an evolution from both CDMA and GSM but I don't think there will ever be a unified SIM suporting both CDMA and GSM available for public, the technologies are very different. CDMA is dying in India, sad but true.

No, I am not spoilt and I did not try redmi note 3 or holly. I mostly have used basic handsets when it comes to CDMA and they all worked great, have used 2 android CDMAs, MTS Blaze 5 and sne of ZTE. They were good but only good, for the same price I bought Karbonn Android One and it was way beyond powerful. it has been 6 months I have ported from CDMA to GSM and I think it was very good decision.

I ported from TATA CDMA to TATA GSM, after 8 years as faithful TATA CDMA user, other phone I got has AirTel. I did that primarily becauase lack of CDMA handsets and then whatever handsets are available, they are so damn expensive. It is even more true today as of Mar 2016, check eBay for a CDMA android with good specs e.g. 4.5 inch touchscreen, 1 GB RAM, Quad-Core and good camera and then check Flipkart and Amazon for same spec GSM phone. CDMAs are almost double the price and totally outdated and half of them don't even run the internet. You can't even update them, for that messes up the internet services.

Its pinned thread and dating back to 2011. Can someone update the list now for 2015 ?

I have MTS Blaze 5.0 (unlocked). I just put TATA CDMA RUIM in it and everything just started working. Did not need to edit any settings. 1x/EVDO is just working great

I want to buy a an Android CDMA handset with 1GB of RAM (or more), I will use it for the following features: Voice Calls and SMSs EVDO whatsapp chatting/sharing pics/videos etc. 24x7 (not 1x, original issue with 1x is discusssed here) Wi-Fi tethering Google Maps (I use GPS a lot) These are the major uses. I have airtel and I will port to tata docomo CDMA (not Reliance because my friend had Reliance CDMA few years back and I have seen their customer service, not much different from BSNL). I decided to switch to CDMA because of excellent call quality, signals rarely drop (at least in Hyderabad and wherever else I roam) and good EVDO connectivity, not to mention I am getting some severe headaches if I talk for long time on GSM. I used CDMA few years back and never had headaches even if I talked for 2 hours. 7K Budget, I can raise it to 12K if I get some really good handset which does not give me problems mentioned here I avoid imported handsets because I read a post about the disadvantages . Do these imported phones get updates for both apps and OS ?

I ported from AirTel to TATA CDMA. Forget about retention offer, I did not even get a call from AirTel on why I am porting away from their network.

Hi Guys, I use Android GSM phone and I my 2G connection is ON whole day. I wanted to switch to CDMA. I have 2 questions: HANDSETS: First of all most of Android CDMA handsets are imported and I have heard imported handsets are prone to 1x/EVDO network issues. Imported hadsets are only good for making calls and sending SMSs, not for smoothness internet experience. Is it true ? NETWORK: In GSM I can use 2G while I can receive calls at the same time. 2G disconnects only if I am on live call. I read somewhere that if you use 1x/EVDO on CDMA handsets then when people try to call you, they will get busy tone. it true ? Wi-Fi Tethering: I use WiFi and WiFi tethering Google Maps: since Android versions on phones are out of date and no updates provided, will I get all Google Maps features and updates available on KitKat/latest/GSM versions ?

Dude, it is 8 years old article and that is EXACTLY why I posted the link here. See how accurate the predictions were. Qualcomm means CDMA, there is no CDMA without paying to Qualcomm. Read more about CDMA and qualcomm on Wikipedia: How much money they demanded from Reliance and NOKIA ? Why you think 3G was (and is) so expensive ? Why do you think China developed TD-SCDMA ? Those are few of the reasons why most operators use GSM instead of CDMA. There are other loads of serious reasons you can find on Google. CDMA started dying more than 8 years ago and that blogger saw it coming from long way.

I can't understand your point. How heating problem and apps malfunctioning are related to network ? They relate to handset I think. Can anyone shed more light onto this ?

I bought MTS Blaze 5 @6750/- from ebay. Using it for 3 days now. Comparing to 5K Karbonn Android One which I have used, MTS Blaze 5 is more heavier and you can easily see pixels on screen, not to mention performance is just half. Best thing is signals, call quality, data signal quality and much better battery of MTS Blaze 5.

Sam is true for 1x and EVDA Rev.A. I have used both 2G and 3G extensively on Airtel and 2G on Idea on different handsets and in several different states (at least 3 states in India). None of the experiences compare with EVDO of TATA CDMA. It is more stable and smoother than GSM. I have hardly once in a day connection drop in EVDO whereas 3G on AirTel, though giving similar or more speed than EVDO Rev.A but 3G signals drop very frequently adding to the frustration. Even 1x is way better than slow, crappy 1947's 2G. Quality of data on CDMA is light-years ahead comparing to data on GSM. It will change in future though because GSM is more of open technology while CDMA is definitely not.

Sure, read it all here: http://windia.blogspot.in/2006/08/why-cdma-will-die.html Hope you will run towards GSM after reading that article. I myself have ported from AirTel to TATA CDMA a few days back. Is it contrary to the advice I usually give ? Hell no: How many CDMA OMH Android handsets with 1GB RAM (2) How many CDMA OMH Android handsets with 512 MB RAM (1) How many GSM Android handsets with 1GB RAM (more than 100, too many to count, plus they are cheaper) How many GSM Android handsets with 512 MB RAM (more than double of above, too many to count, plus they are cheaper) Since CDMA is dying, I decided to give it a farewell and will use it once for last time in my life, for few months.

I ported from AirTel to TATA CDMA: 27th Jan, UPC generation took 2 hours Retailer told me I am his first customer who switched from GSM to CDMA since MNP came into effect Jan 28th, documents submitted to TATA. TATA guy had shocking face looking at I am porting from AirTel to TATA CDMA. Jan 29th, got SMS from TATA that they have forwarded the port-request to AirTel Feb 3rd, I got SMS that number will be ported around 10:14. I could see AirTel signals till 11 but after I switched-OFF-ON my phone AirTel SIM reregistration failed. Early morning I turned on CDMA phone and I see welcome to TATA DOCOMO message AirTel people never called me to know why I am porting.

You are right Arun. It is Feb 2014 now, almost 2.5 years since your OP. And you see all branded companies ha]ve stopped manufacturing CDMA handsets. In 2011, Samsung and LG used to manufacture CDMA handsets but now you see only Indian or Chinese companies. I was avid CDMA user but looking at the availability of CDMA handsets I switched to GSM myself. There is a great article written by someone back in 2006 on Why CDMA will die. you can read it here.

Back in my village in Punjab, TATA CDMA has great coverage and very good signal-strength while all other GSM/CDMA have coverage bun not much signal strength. Same I can say about smaller towns in Punjab where my friends had TATA CDMA connections. I have used RCDMA for few days myself in Hyderabad and it was no way comparable to TATA CDMA. CDMA is dying technology when it comes to mobiles, I do not recommend anyone to choose CDMA. GSM is much open and cheaper technology, probably because CDMA is marred by royalty QUALCOMM asks for which makes handsets expensive and even if some company manufactures cheper handsets (like Reliance did in beginning) then they have to share profits in business. This does not end here, littile search in internet will tell you a lot more. Yes, CDMA may have more voice clarity and good signal strength but any open and cheaper technology (in comparison to closed/expensive technology) will find ways to improvise and become better and better and then get ahead of its limitations and then get ahead of strengths of the closed/expensive technology. QUALCOMM already gave up 4G-CDMA (Ultra Mobile Band a.k.a UMB) in favor of LTE because LTE found better way of migrating from both EVDO and 3G. Now LTE-Advanced is here already. If you are buying a new connection then by all means get a GSM connection and if you already have CDMA then port. You will learn sooner or later why I am saying so

I have used TATA CDMA on roaming in Chennai IT Park (SEZ) and it has very good signals there while all other GSM operators barely work.