My iphone 6 doesn't ring when a call comes in.

On my iPhone 6 with the same issue, I had to turn off the Repeated Calls parameter. It is supposed to prevent ringing when receiving multiple calls from the same person within 3 minutes. It is one of the Do Not Disturb settings.

Just to pick a nit: the setting to which you refer is designed to make noise if a second call from the same number comes within three minutes. That is, you turn that feature on, and if I call you twice in three minutes, your phone will ring.

I dunno if the LTE will make a difference to me, I just flicked the option - but if anybody calls me this time of night,my wife will kill them.. and torture me for weeks.

I have a brand new iPhone 6, worked just spiff for the first week. Then, yesterday, I found messages and missed calls. The phone was in my shirt pocket in a quiet environment, so I didn't just miss them. Later, I was actually looking right at the phone when a call came in - with no ring tone.

No, Do Not Disturb is not active

No, the mute switch is not set to mute

yes, the volume is set high enough to be heard (in the next county)

Yes, i can play music, ring tones, etc just fine. Ergo, hardware seems to be eliminated. I've spent the past 6 hours poking and tinkering and reading the net, and can't find a definitive reason.

I found the remarkably simple answer to this problem (the side switch on the phone was set to silent)on my phone at another thread:

sterling rJun 8, 2013 1:54 PM Re: My Iphone doesn't ring or makes any sound just vibrates

Re: My Iphone doesn't ring or makes any sound just vibrates

in response to Melissa Castañeda

Hello Melissa,

Here is an article about troubleshooting the phone being silent. Called iPhone: No ring or sound from built-in speaker it can be found here http://support.apple.com/kb/TS1205.

Also I would recommend looking at the side switch on the phone. Here is an article that outlines the sideswitch:

iPhone Buttons

http://support.apple.com/kb/ta38625

Flip the Ring/Silent switch to change between ring and silent modes.

When set to ring mode, iPhone plays all sounds. When set to silent mode, iPhone doesn't ring or sound any alerts or sound effects (alarms set using Clock do sound). By default, when you get a call, iPhone vibrates whether it's set to ring or silent mode.

If iPhone is set to ring mode, you can silence a call by pressing the Sleep/Wake button or one of the volume buttons once. Press a second time to send the call to voicemail.

Thank you. I had checked everything else and this was the problem. Easy fix. I didn't think to look at the Do Not Disturb because I don't use that feature but had recently gone through all of the settings to turn off the ones running in the background to save on battery life.

Thank you, this was driving me crazy also, checked everything I could possibly think of.

Thank you - this was invaluable... and now I also know I have a 'silent' feature!

Yeah! Thank you, this is the only thing that worked, I have tried all the other suggestions and have been messing with this off and on for over a month!

The problem seems to be with 4G/LTE Network settings. I reset my network settings first, then switched mobile voice and data to 3G. Now my phone rings just fine.

This was really helpful. I had no clue what that moon icon was and the phone rang on occasion. I thought it was the network, but only turned out to be this Do Not Disturb sign. Once I turned it off, I was good to go.

My wife had the same problem on her iPhone 6. I checked all the settings and everything appeared to be set where it should be, but still no ring. No moon symbol in the top right corner of the screen. I rebooted the phone (power off, wait about 15 seconds, power back on) an it works fine now.

This just helped me!

I Was having the same problem and your post about the moon was very helpful!! Thank you!

I had this problem too and then realized that the side switch on my iphone was accidentally set to SILENT. Duh. Check the little switch on the upper left side of phone, right above volume keys. If it shows RED, the sound is off. Push it to green and you're all set.

My wife thanks you!