On 5/31/17, Snehasish Kar <snehasish.cse(a)live.com> wrote: That statement cannot be true, as I just went to ebay, searched for C139 and got 33 listings; 30 of them are USA units (850+1900 MHz bands), but 3 are from the UK and thus presumably the 900+1800 MHz version. There are also newly made Calypso devices: https://www.freecalypso.org/fcdev3b.html I designed and built the above Calypso board for the purpose of running my own FreeCalypso firmware which is more demanding than OsmocomBB and for which Mot C1xx phones aren't good enough, but OsmocomBB runs on my board just fine as well. However, if you are only interested in OsmocomBB and not FreeCalypso firmware, then buying my expensive board will be a waste of money, as it offers absolutely no advantage over the obscenely cheap Mot C1xx phones for OsmocomBB purposes. M~

On 6/9/17, thayyil09 yil <thayyil(a)yandex.com> wrote regarding Mot C1xx phone availability: If you like, I would be glad to resell you some of the ebay-sourced C139 units in my stash (I have about 50 of them IIRC), and I won't have any problem with shipping to India or anywhere else in the world, but these C139 phones probably won't do you any good as they are all 850+1900 MHz units, whereas you probably need 900+1800 MHz in India. As I already mentioned, I do have a Calypso modem board of my own design and make (FreeCalypso FCDEV3B), primarily intended for running my own FreeCalypso firmware but also capable of running OsmocomBB just fine (certainly no worse than Mot C1xx phones), and it has a 900/1800/1900 MHz triband radio front-end. I am not yet at the point where I can sell these boards, but I am hoping to get there in another few months: I need to make another batch of boards first, and before I order the assembly of that next batch, I need to resolve all of the little issues found on the first batch. But these newly made FreeCalypso GSM MS development boards certainly won't be cheap; I have not yet figured out what the retail price will be, but I estimate somewhere around $500 USD. M~