New answers tagged calls
It may be a Samsung omission rather than an android one as from manuals that Google has provided, Call Waiting is referenced in their documentation. http://www.google.com/help/hc/pdfs/mobile/AndroidUsersGuide-2.3.4.pdf
The icon that displays a blue circle with diagonal line through it in the Phone app's Log tab appears when the user receives a call and manually rejects it with a swipe when the phone rings. As soon as the user swipes to reject the call, the caller will hear the tone of the phone call change from a ringing signal to a busy signal. The icon that displays a ...
With stock Sony ROM you can't do phone calls on the Xperia Z, Z1 and Z2 tablets. Might work if you install an own ROM but I'm not sure. The new Sony Xperia Z3 Tablet Compact ( http://www.sonymobile.com/global-en/products/tablets/xperia-z3-tablet-compact/ ) can make phone calls, even if you better get a bluetooth headset to make it useable.
Use "Screen On Call" app to keep screen on during call. There is no need to turn proximity sensor off. It will keep working and if you move you phone to your ear, screen will go off, but if you keep it on the table or away from any blocking objects, screen will stay on, so you will be able to use keypad to punch more numbers or for whatever reason you want ...
Try resetting the screen lock on your phone. Worked for me. I have a nexus 4 too.
This issue seems to be in cyanogenmod for some time. See this bugdescription. A fix for MTK-compatible phones was posted here
This is certainly not the default behavior of the M7 or M8; I've used both. The way I see it, it's one of the following: Some option in HTC's phone app or system settings has been enabled to invoke this behavior. I'd suggest reviewing the settings to confirm this isn't the case. You may be experiencing some troubles with your touch screen. It's possible ...
Based from OP's comment, you have to calibrate the proximity sensor: Go to "Secret Menu" by dialing 3845#*880# Select "Device Test" Select "All Auto Test Menu Full" Choose "ALC / Proximity Test"
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