I have a 6s and a 5s but one SIM card. I'd like to use both phones with the same phone number. I don't mean at the same time but I want to set up each phone as identically as possible and then swap the SIM card between the phones. I can already have my photos/email/contacts etc.. sync via iCloud or google apps. However I am more concerned about the imessage/text message forwarding/facetime working with two phones with the same "phone number". Anyone have experience swapping the SIM between two phones and making sure things like iMessage and text forwarding work properly?