A little brusque perhaps @Crazy_Al ? If you don't understand something then perhaps just ask instead of shout?
I was simply referring to your comment that "Need to rethink ot all and keep in mind that optus sms and mms are not reliable ways to communicate."
No its not a solution for now (although RCS is available now for some Android Phones). It basically SMS 2.0 and should provide more secure messaging (SMS is not a 'reliable' method for sending over any carrier - it just works almost all of the time)
Text communication is a bit fraught. "What the hell" typed with a smile on your face doesn't translate as well as if we were talking face to face. (I don't like smileys but I've learned the hard way they are helpful 😀).
Appreciate the feed back though. On of the main reasons I like posting is to learn stuff myself (including being a better communicator)