I am about to switch my girlfriend from her trusty (but old) Nokia E66 with native SIP support to the iphone SE and I wonder which SIP client should I use to connect her to my asterisk. I particular I wonder whether ios supports integration of voice and SIP dialling (like the android does - when dialling the number I get to choose whether the call should go out as SIP or over the normal phone network). Or does this require a jailbreak? Thanks for any suggestions...