Several users have reported problems when trying to make a call. The reported problems include, but are not limited to, call failing and no sound.
Fix
There has been similar Siri related problems with outgoing calls where there is no sound while a connection is established. It has been reported that updating to the latest iOS fixes this problem.
If you have a call failing issue and updating your iOS does not fix your problem, try each of these steps until you resolve your issue:
- Make sure that you are in range of the cell network by checking cell signal indicator bars.
- Reset your network by tapping Settings > General > Network
- Reset your iPhone by holding down the sleep and home buttons until the Apple logo appears
- Try Settings > phone > show my caller ID. Just visit and let the device load your settings.
- Try disabling airline mode.
