How can Private Computer sending massages to a SIM or mobile no.
Respectively I want to know about how can a Private Computer (PC) sending massages to a SIM or mobile no. without mobile no. This days we are seen various mobile companies and Bank and some government organization has using their computer for trusting to customers and sending informations or massages without mobile no.by some codes. The mobile companies has owner and Bank and other govt. organizations has working by the authorities of government. But how can Private Computer has sending their information to the customers or an individually. The private companies has sending their massages using some codes as TX-KRBEEE, TX-KREDTB, TM-CASHBN,QP-CASHBN,BZ-CASHBN,VMCASHBN etc.What kinds codes uses the companies, if we trying to answer than getting troubles. And some cashes the private companies has call various mobile no.use only one times.