I had the same problem with the M7 and never found a solution. I was distressed to find that the problem continued with the M8. I set my ringtone and notification volume levels very low so as not to disturb people around me with loud rings. But every time I receive a call and forget to reset the volume levels (which I usually do forget) the next call will ring at maximum volume, loud enough to disturb anyone within 50 feet of me. I have searched and searched for some setting to put a stop to this behavior but I haven't found one. If anyone can tell me how to control the volume, I would be most appreciative.
Thanks for reaching out. Your phone has an in pocket mode feature that increases the ringer volume to avoid missed call while in your pocket or a bag.
The good news is there is also has a quiet ring feature that automatically lowers the ringer volume as soon as you move it. You can activate this by swiping down from the status bar>then tap tools Icon> tap sound> select the Quiet Ring on Pick up option. Let us know if this helps.
Sprint Social Care
Thanks for the suggestion. But I have always had the option to Quiet Ring on Pickup checked, both with my M7 and now my M8. It doesn't seem to affect the problem I described at all. The phone always rings quietly on the first call, but if I forget to reset the volume, any later call will be LOUD.
frailer - When your phone has increased in volume after the first call, do you have a headset plugged in? Sometimes with a headset/ear piece or bluetooth connected, it may give a different setting while a head piece is plugged in. Let us know. - Andrew B. Sprint Social Care
No, that's not a solution, either.
I remembered that there used to be a setting in Sound for "system volume," which I never understood. It occurred to me that perhaps it was a kind of "master volume control" that might be affecting my ringtones, but when I looked for it in the latest Sense version I didn't find that setting at all. So I couldn't experiment with that as a solution.
Maybe I'm unusual in having the problem. I don't recall that anybody else has ever reported it. So it may have something to do with the way I use something on the phone, but I can't imagine what that "something" might be.