I'm writing an app which can test different SMSC (Short Message Service Centers) from an operator. Therefore I need to change the SMSC the iPhone is using for sending SMS. Is there a way doing this ?

Android offers an sendMessage method with the SMSC as an parameter, is there a equivalent in iOS ? I don't care if it's using private API Calls since I won't release my app anyway (just for internal testing purposes). Any help appreciated, thanks.