Callers get the message that my phone is switched off

[AC Question]

Anybody calling me on my new htc one m8 eye gets the above message the first time they dial me, but subsequently get connected and the phone rings. I have been using the same sim previously without any such issues on my samsung. The phone is always placed with screen up. Any idea what the problem could be?

 

[the tall guy]

Sounds like a signalling issue - speak to your service provider, they might offer assistance.