My iPhone doesn't always ring, why?

I have a 4S & it has started to play this little trick on me too. I'm in Australia so it's not caused by AT&T or Verizon because they don't operate here. I have had missed calls before that were puzzling when my phone was in my pocket but I thought I may have been in a noisy place but the vibrate didn't happen either, Tonight I had the phone on my lap in a quiet room & I got an IM "ding" & looked at the sceen to see 2 hangup messages from calls made by my neighbour. I sent her a IM asking had she called & within 30 seconds my phone rang & it was her. I hadn't moved, signal strength was 3 dots & hours later still is..... What's happening

I've noticed this issue on my wife's iPhone 5. We both have an iPhone 5, same IOS build sitting in the same place. However, if her phone sits for a few minutes it's like it goes to sleep. When she receives a call, the first one always goes to voicemail. Then if you call her phone again a few seconds later, it will actually ring just fine. So, you have to call her twice to reach her. My phone always rings fine, I've reviewed all the settings and they are both setup identical.

Another interesting item of note is that her phone will show the calls as missed when she looks at it. Even though it clearly never rang and sent the caller directly to voice mail.

Super frustrating!

I just started having this issue with my 5s which I've owned for 2 weeks. Never had it with 4s. Reading this forum alerted me to check my Do Not Disturb setting and sure enough, it somehow was set to ON. I did not got there so it had set it by itself. Now I recall noticing the little moon icon and wondering what it was. It indicates Do Not Disturb is on. This setting sends first call to voicemail but allows second calls from same caller to ring, explaining previous posts about sometimes going to voice mail and then ringing. I hope this will fix it for me. My wife has iPhone 5 with updated OS 7.0.3 with no problem. I have previous 7.0.2. Perhaps it's the OS and is now fixed with the update. I'll get it when I have access to wifi and won't be usiing my Verizon data allowance.

You may be correct. Although I did find Do Not Disturb enabled, I also have intermittant signal problems. But my wife's phone has not failed to ring, even with the signal problem. In other cases, my guess would be that the call comes in when there is no signal and then goes to VM as the signal restores. I think that may be reaching, though. Good luck to us all with this.

Same problem for me. Apple replaced my phone today, iphone 5. Problems still there, called Verzion, support ran all kinds of tests, re-provisioned my phone etc. He tried to call me twice, and if didn't ring. He said it shows my phone is not evne on the network when it's not ringing - it's like it's powered off (which it clearly isn't)

I was told to go get a new sim card. I did, called from the store, it worked, got in my truck and my wife called me three time..... On her end it rings 3 or 4 times and to voicemail. We tried from her cell which is AT&T and my office landline at home.

Went back in, guy offered to swap my phone out again and a new sim. What's the point? Both the sim and phone were less than 3 hours old.

I notice this mostly if my phone is in my pocket, coat pocket, jeans pocket etc. Had verzion for almost 1 year with NO issues until this. I'm on the latest build of iOs 7. What a nightmare of a problem to have. Unless its some junk call - No one leaves voicemails really anymore, so I guess I'll have to live with not knowing what calls I'm missing.

Experiencing same problem. Phone won't ring, only vibrate. But rings with earphones on.

I have a iPhone 4, in Kenya where there are obviously no Apple stores..... & no the phone is not jailbroken. Tried everything under the sun, including changing ringtones, resetting all settings. Who can help?

I have had the same issues for weeks, and it was the "do not disturb" option,

I now remember how it got turned on to begin with, it was when i had a reminder go off on phone then i clicked "do not disturb" to make it go away and ever since it has been that way , it wont ring even when i call it and look at it, but will ring if someone keeps calling back over and over, i wasnt even getting anything until i turned on the phone to see i missed calls, texts, voicemails,

I thank you all for helping me , my wife and family has been bothering me forever to find out why 🙂 🙂 🙂

The Do not Disturb works in conjunction with the lock feature. So if the phone is locked and do not disturb is on the phone will not ring. However, if the phone is unlocked and a call comes in, the phone will ring even if the Do not disturb is engaged. THis was bothering me for a while until I figured it out.

I went to apple store today with problems discussed in this forum. My phone was not ringing,had no alerts. I could be looking at the phone and see it but I would not get ring. I would then get a voice mail without any alert. These symptoms were also irratic. Apple did quick test and suggested a reset. Go to settings > General> Scroll toReset at bottom and select Reset All Settings. You do lose some settings but nothing that can not be reset. My iphone 5S is operating normally now. HOPE THIS HELP

I have the same problem. Sometimes the phones rings, and the next time it doesn't and goes right to voicemail. I'm a realtor, and my clients feel frustrated because they can't reach me. I also called Apple store. They said I could come in for a 15 minute consultation or pay $19.99 for a support call. This only started once I updated my phone.

Try what I did to solve this problem. Check bottom entry on page 4of these posts. The reset worked for me. Hank 4123. It has been days since I reset and my phone is working correctly. Hope it works for you.

I went to apple store today with problems discussed in this forum. My phone was not ringing,had no alerts. I could be looking at the phone and see it but I would not get ring. I would then get a voice mail without any alert. These symptoms were also irratic. Apple did quick test and suggested a reset. Go to settings > General> Scroll toReset at bottom and select Reset All Settings. You do lose some settings but nothing that can not be reset. My iphone 5S is operating normally now. HOPE THIS HELP

Thanks, slsonline's suggestion of checking the switch that is just above the volume buttons worked for me - sure enough, it had been flipped to silent.

I have a fancy Otterbox case that covers up that switch, so never would have known to check it...