First recheck your call and sound settings to be sure all are correct. If you hearing other normal sounds from your device you know that the problem is not in the hardware. Also using your device in a poor 1x or 3G signal area will delay a ringtone sound.
When I call one specific #, there is no ringing. It has been going on for weeks. It doesn't matter where I am (have called from multiple cities/counties over 200 mile radius during this time). None of my other calls do this, it is only one specific number. I have made sure I am updated. What else can I do?
Due to the age of this thread, it will be locked in order to keep discussions current. If you have the same or a similar question/issue we invite you to start a new thread on the topic.