Q: No noise on incoming texts?

Hey Betlav!

Here is an article that will help you understand these alerts and what may cause them to not make any sounds:

iOS: Understanding sounds, ringtones, and alerts

http://support.apple.com/kb/HT5800

If you are still having issues, use this article to troubleshoot:

iPhone: No sound or distorted sound from speaker

http://support.apple.com/kb/ts5180

Thanks for using the Apple Support Communities. Have a good one!

-Braden