Building an IMSI Catcher with USRP and OpenBTS

I am looking for an Engineer with experience win the OpenBTS, OpenLTE, GNURadio and or similar with a basic understanding of GSM, CDMA, LTE. To build something like that [login to view URL] [login to view URL] There is no contact with the sales of these devices Looking for help for realization SMS Advertising System based on USRP (or other hardware) and OpenBTS (or other soft) and working with gsm (900-1800) and also 3g and 4g Its also called as: SMS sending system I'm interested in functionality All phones that log in to my BTS receive advertising sms, then the phone is logged off my network.