Hello Sahil, Other than the network elements you need to do this, you will have a major hurdle in getting into the actual roaming world. Unless you are a legitimate MNO or MVNO with your own MNC, point codes in ss7 world, last but not least be a member of GSMA. Have you studied all these ? Are you trying to implement a standalone network to facilitate this ? Who is the provider willing to extend you roaming ? Is it a GRX or a MNO ? Do you have your own MNC and point codes ? Put some more info so we can see how best you can get this done. cheers. Nik On Fri, Mar 28, 2014 at 4:07 PM, Sahil Gupta <sguptaau(a)gmail.com> wrote:

Still I do not understand. Is the first step the free wifi, that points to the GSM network, or should the GSM network point to the wifi? Ralph. From: Sahil Gupta [mailto:sguptaau@gmail.com] Sent: Friday, 28 March, 2014 11:38 To: Ralph A. Schmid, dk5ras Cc: openbsc(a)lists.osmocom.org Subject: Re: OpenBSC and Roaming Hi there, If we take the airport for example, there are two other major mobile providers offering services there. I'd probably offer free Wifi provided the customer dials a particular number after signing onto our network in order to receive a sign-on code by SMS. I know StarHub did this for years in Singapore and I always ended up roaming on their network. The other thing we would do is oviously have substantially lower costs on our network as opposed to others in order to encourage mobile providers to have our network as part of the list. Cheers, Sahil On 28 March 2014 21:33, Ralph A. Schmid, dk5ras <ralph(a)schmid.xxx> wrote: One question.how do you want to attract those mobiles? Usually high traffic locations offer high field strength of all providers, and no mobile phone has the need to search for a different network, unless it is already roaming and suddenly sees its home network. Ralph. From: openbsc-bounces(a)lists.osmocom.org [mailto:openbsc-bounces@lists.osmocom.org] On Behalf Of Sahil Gupta Sent: Friday, March 28, 2014 10:41 AM To: openbsc(a)lists.osmocom.org Subject: Fwd: OpenBSC and Roaming Hi there, I'm fairly new to the mobile world and am still coming to terms with a whole new world of terminologies. The project is to test out a theory in my lab before wanting to scale this at a larger level for commercial purposes. The intent is to be able to have roaming available with a roaming aggregator in the United States with a small-scale mobile network enabled using OpenSource software. We are probably looking at implementing no more than 15 BTS's nationwide to attract roaming customers at high traffic locations. Our roaming aggregator would like us to send them MAP SS7 Messages from our MSC. My understanding of the requirements so far are: 1 x BTS (this could be a PC with some radio cards or something like a nanoBTS) 1 x MSC/BSC/VLR We won't be issuing any sim cards on our own network in the long run and hence I don't see the point in us having a unique HLR. Are there any gurus here that would be willing to share their intelligence? -- Thanks, Sahil -- Thanks, Sahil -- Thanks, Sahil