Manoj Reddy 0 Report post Posted February 12, 2006 Hey, I am planning to get a CDMA Mobile from US and want to use it India. I know that its not straight forward as using an GSM phone from US. but, How do I use CDMA mobile purchased from US in India on RIM/Tata? are there some ways do it? can you guys help me out? thanks Manoj Share this post Link to post Share on other sites
Manoj Reddy 0 Report post Posted February 12, 2006 oh! is this a banned topic. I am sorry. Manoj Share this post Link to post Share on other sites
anujit 0 Report post Posted February 12, 2006 Its not a banned topic. Actually it is. Ummm maybe not. Ok heres the deal. Yes technically it is possible. No, none of the operators (RIM/TATA) permit this. So to do this you would have to buy a handset from either of them and then rip the handset codes of into your mobile from USA. And yes people here can help you with it. Ask them to drop you a message or something and you'll get a response dont worry. Share this post Link to post Share on other sites
cybergal 0 Report post Posted February 12, 2006 Its not a banned topic. Actually it is. Ummm maybe not.Ok heres the deal. Yes technically it is possible. No, none of the operators (RIM/TATA) permit this. So to do this you would have to buy a handset from either of them and then rip the handset codes of into your mobile from USA. And yes people here can help you with it. Ask them to drop you a message or something and you'll get a response dont worry. Hi, i also want to know how to do it. can anyone guide me? Thanks! Share this post Link to post Share on other sites
ashoksoft 83 Report post Posted February 13, 2006 Technically possible .... intellectually possible ... but issues do exist. In cases the calls do not connect well, sometimes ur location register does not latch to the PRL defined, in case of clones. Arun, had a real nice experience a couple of days back, when his Kyo failed to work... the copy of the Kyo he had made, was a dummy phone, which could receive messages and make / receive calls for exactly 5 Seconds!!! So can i suggest you, not to try it out, unless u are ready for about a month of trial and error ? Cheers Ashok Share this post Link to post Share on other sites
prakashkadam 1 Report post Posted February 13, 2006 I am wondering how TRAI allows these discriminatary policies towards consumers. If GSM users are free to change operators keeping their instruments. CDMA operators should also be made to allow network interchange. I mean, If I am fadeup with reliance I should be allowed to use the same instrument with TATA or vice versa. Guys is there any way to reach TRAI on this issue? Technically possible .... intellectually possible ... but issues do exist. In cases the calls do not connect well, sometimes ur location register does not latch to the PRL defined, in case of clones. Arun, had a real nice experience a couple of days back, when his Kyo failed to work... the copy of the Kyo he had made, was a dummy phone, which could receive messages and make / receive calls for exactly 5 Seconds!!! So can i suggest you, not to try it out, unless u are ready for about a month of trial and error ? Cheers Ashok Share this post Link to post Share on other sites
sajokj 8 Report post Posted February 13, 2006 cant we together make this matter into the notice of trai? cant we, I think if we stand together as a mission, I think we can make it out through TRAI Share this post Link to post Share on other sites
theking 35 Report post Posted February 13, 2006 sajo....guess u have just watched paint in yellow...umm Share this post Link to post Share on other sites
abhishek_eleo 0 Report post Posted February 13, 2006 Hey,I am planning to get a CDMA Mobile from US and want to use it India. I know that its not straight forward as using an GSM phone from US. but, How do I use CDMA mobile purchased from US in India on RIM/Tata? are there some ways do it? can you guys help me out? thanks Manoj Technically possible Intellectually Impossible... And also strictly Illegal! So simply forget about it... Belive me that's the best option :-) Share this post Link to post Share on other sites
prakashkadam 1 Report post Posted February 14, 2006 We must, there should be fairplay practice for consumers also, and TRAI is bound by this principle. Lets find out the channels to reach TRAI first. cant we together make this matter into the notice of trai? cant we, I think if we stand together as a mission, I think we can make it out through TRAI Share this post Link to post Share on other sites
sajokj 8 Report post Posted February 14, 2006 Ya there we are we can go forward on it. Or get it noticed by any TV channels in programs like Uncovered in CNBC Channel ect. rest they will do it Share this post Link to post Share on other sites
Chirag 5 Report post Posted February 14, 2006 Write to TRAI here >> trai@del2.vsnl.net.in Make sure you describe the issue very well. Dont just send mails, as if its sent to your frnd! Compose a real good Formal Letter. With all things set right, you must recieve a reply from them as well. Share this post Link to post Share on other sites
KingofKalyan 0 Report post Posted February 16, 2006 Write to TRAI here >> trai@del2.vsnl.net.inMake sure you describe the issue very well. Dont just send mails, as if its sent to your frnd! Compose a real good Formal Letter. With all things set right, you must recieve a reply from them as well. Lets come together and bring out some revolution In CDMA world (India) Share this post Link to post Share on other sites
jplacid 0 Report post Posted February 16, 2006 Hi Manoj, I don't think this is a banned topic. The CDMA technology was originally developed by the US for Military communications in the 70s, because it is highly secure to eavesdropping and signal jamming. When the first set of CDMA phones were manufactured, the technology was 'off the shelf' and still considered to be of strategic importance that the company(s) that developed and marked it wanted to regulate the spread of the technology. Hence it was decided that CDMA mobile phones should be supplied only through the network providers. Hence there was no separation of the handset manufacturer and the network provider. The handsets freshly out of the factory were handed over to the network providers who flash programmed the handset (to their network specifications) and marketed it to their customers. This is how reliance and tata markets their handsets. Recently (a few years back) when the technology became widespread, companies started manufacturing the handsets that could be used in any CDMA network as the user pleases (Like what happens in GSM phones). A standard for the CDMA subscriber identity module was created, called RUIM (Removable User Identity Module) which is analogous to the SIM card in the GSM network. The current RUIM standard borrows heavily from the GSM SIM specification (GSM 11.11). Most of the leading manufacturers of CDMA phones support the RUIM standard. So, if you remove the battery of some of the new CDMA handsets, you would find a RUIM slot. The glitch is Reliance and TATA disable the RUIM support (by software) and market the phone, so that they can hold on to their customers. May be you could speak to Reliance or TATA and see if they can support you, which is the right way of doing things. Alternatively you could take your phone to a Mobile Phone Doctor who will hack the phone for you ( which I think you should not do !!). Hope it helps, JPlacid Share this post Link to post Share on other sites
theking 35 Report post Posted February 16, 2006 And may I please ask why in this world u think that this not illegal ? Share this post Link to post Share on other sites
ashoksoft 83 Report post Posted February 17, 2006 Legality is not a question here ... at least in india (and considering reliance's / tata's plans) the user is purchasing the handset downright.... and for all anyone cares, the phone is urs... and when it is urs u sure have the right to fry it in oil, or dip it in the commode. now getting to the issue, when someone gets a CDMA handset from abroad, which supports RUIM, u can use any CDMA RUIM anywhere. .. and well the same thing can be done (by little hacks (read tweaks)) to the phone. As far as disabled RUIM slots are concerned, for nokia handsets, it is a small flash (RH-17) that counts, to activate the same. Cheers Ashok Share this post Link to post Share on other sites
sajokj 8 Report post Posted February 17, 2006 So Ashok what u say is that If I get a handset from abroad its possible to get reliance connection into it rite? Share this post Link to post Share on other sites
theking 35 Report post Posted February 17, 2006 (edited) Obviously thats possible....but once reliance comes to know of that, may b u wont be able to use ur no. again..and yeah, ric normally never comes to know of that i guess Once u take a service connection, u abide by the norms of the concerned...escalated to TRAI? Edited February 17, 2006 by theking Share this post Link to post Share on other sites
cybergal 0 Report post Posted February 24, 2006 how to do it anyone can give the details? Ashok? thanks. Share this post Link to post Share on other sites
theking 35 Report post Posted February 25, 2006 When ya ask it out here, hope the admin's not around Share this post Link to post Share on other sites
Utsav 0 Report post Posted February 25, 2006 Can anyone describe the procedure elaborately? I think MODs will not allow this over the thread. Please PM me. Share this post Link to post Share on other sites
theking 35 Report post Posted February 25, 2006 i guess there's a post on cloning by Arun....an article from times, if i do remember it well.... Share this post Link to post Share on other sites
kshah 452 Report post Posted February 25, 2006 Explaining Procedures may illegal. About SIM and RUIM, in US mobile communication standards has requirement that each mobile is identified by IMSI, Serial of Handset (ESN or IMEI) and another serial of SIM or RUIM that is know as MSI. Hence if one has seen GSM handsets of US, they have 2 serials mentioned over it. IMEI and MSI. That is the reason why US GSM handsets are SIM locked. It is not because service providers sells handsets at subsidized rates. Since CDMA is US technology they prefer close control over technology (Many members disagree with me for this statement) but if you peek in to standards it will be evident that authentication is far more complex in CDMA than GSM Take an example of PRL, in GSM your handset will show all network, it may not register to some of networks. Where as in CDMA it will not show ant network other than present in PRL. In GSM foreign network log in is based on IMSI attached to SIM, where as in CDMA it is IMSI, PRL and MSI or ESN. Since CDMA is more polpular in US (Not really) and now in India due to its lower cost (as CDMA is spectrum efficient) it is still not having full fledged RUIM support. ARUN: 5 second issue is A-KEY issue. Share this post Link to post Share on other sites
petar 15 Report post Posted February 27, 2006 Many people are bored with Gtan phones.... i may be able to pick one used Gtran up for like 500 Rs. Then once i shift from existing handset to RUIM of Gtran.... i can buy any foreign handset which supports RUIM & use it on reliance. would this be as simple as this ?? I think thats what all the non-technical people would be intrested in. Some of our experts please explain this Share this post Link to post Share on other sites
