I'm just getting used to my Jabra, but it looks like you can use "VoiceOver" feature to read texts and emails. I've linked the 'Triple Click' home button to turn "VoiceOver" feature on/off. Then go to txt/email and click on paragraph/words - you may need to hold and scroll ... so that's a bit of a pain..
(Done in Settings > General > Accessibility > Accessibility shortcut (at bottom of list) > VoiceOver)
Also, figured out you can easily send Hands Free text msg by enabling Siri by holding home button, tell Siri to "send message to Jack mobile", dictate msg and command to send
You may or may not first need to enable phone commands on your Jabra. I did it first time by pushing "Voice" button on Jabra and saying "Phone commands" now it instantly enables Siri voice input.... seems pretty cool so far, I think I'll keep it.
-ST