Hey there, many people if not everyone needs a solution for phone verification in almost any social network and other websites/apps. To solve this problem we could buy a gsm modem: http://www.ebay.co.uk/sch/i.html?_nkw=gsm+modem+32+port The problem is that these costs a LOT and can't be used with many sim cards. You can find with 8, 16, 32 and 64 ports. Each port is a slot to use a sim card. So I had an idea: if I manage to get 4+ people to pay for it including me, it wouldn't be so expensive. But why would they pay a part of it? This is why: let's say I want sim cards to verify instagram accounts (I actually do), other person wants to verify facebook accounts, another one linkedin accounts, etc. Now everyone would pay a % of the modem, I would buy it, let it running on my home with my own sim cards (I can get them for free). Next I would make an API for everyone who helped buy the modem to use these numbers. If there were enough people interested which used different websites, let's say 5, each one would pay a one time payment of $200 or less and have phone numbers for 1+ years. I would replace sim cards every 1-3 weeks. Would you be interested in something like this? Do you have a better idea/solution or anything to add?