Interception of SMS messages in iOS 6 Jailbroken iPhone with tones / logos

I am trying to intercept text messages from my iphone using hooking method via theos. I tried to hook into different headers in the ChatKit framework and use the methods described on the web, but many of them are from older OS and different headers are included in iOS 6 ChatKit.

I'm just wondering if anyone succeeded with intercepting SMS with theos / logos on iOS 6. If so, what headers should I look for or what methods should I try? I've already gone through many of the headers and methods, but have no success so far.

Any help would be greatly appreciated. Thank!

PS I am doing this because I have several phones and want to forward all my incoming and outgoing texts to these phones. It's probably software that already does this, but I'm kind of a DIY type of person and this is another opportunity for me to learn something new :)

Thanks again!