This happens for both incoming and outgoing calls, with or without earphones, and regardless of whether I turn speaker on or off. The only way I can hear and be heard during calls is to enable WiFi calling, set it to WiFi preferred and call over WiFi while connected to a WiFi network. I am WELL within coverage area since my 4g LTE speeds are 25.91 Mbps DL 15.97 Mbps UL (signal strength -76 dBm 64 asu) so I shouldn't have to call over WiFi to make calls. Choosing "cellular network preferred" and completely disabling WiFi calling both result in me not being able to hear or be heard during calls.
I doubt this is an audio hardware issue (or anything to do with toggling volumes) since, as I've mentioned, calls work perfectly the moment I enable calling over WiFi. (I test it by calling voicemail-- with WiFi calling, I can hear the greeting, and without it I can't. ) Rebooting does not resolve the problem-- only calling over WiFi resolves the problem, which means I can't make or receive calls whenever I'm outside WiFi coverage.
One user suggested that it might be a problem with handset vs speaker, but I have Google Voice and have used it to test both handset and speaker... speakers and both work fine. (To listen to VM on Voice you can toggle between handset and speaker).
No water damage. No recent physical blows. Doesn't even have a scratch. Never rooted, never flashed, never fiddled with except for OTA updates. I don't think I installed any new programs between the time when my calling was fine and when it started going wrong.
I have the same problem!! No sound from either end of the phone when making calls. And this has been going on for weeks now.. I bought it into the tmobile store and they weren't able to resolve the issue. I have tried factor resetting the phone but to no avail. And like the OP, everything else works. I am able to make and hear calls via wifi but not without wifi. So I doubt it is a phone issue.. Even using speakphone or a headphone does not fix the problem.
Also not sure if this helps but I have a Samsung 4S and live in NYC. Please help!!!
I am having the same issue with my phone. I want to contact customer service, but this is my only phone so enabling wifi calling to make the call doesn't seem to make much sense since I will then be unable to use the phone for troubleshooting. Additionally, the Live Chat function always seems to say "Agents are busy now." It would be nice to know what the fix is for this issue.
Am also having this issue! I make voice calls so seldom, I can't say for sure when it started, but it's more than a week and less than a month. Works fine over WiFi, and I can browse web, use apps, text, etc, over 4G. Milwaukee, WI here, with an HTC One.
Do any of you guys use call recorder apps or anything? I'm just curious if there is anything screwing with the codec. Just thinking.
having the same issue. This has been the 3rd replacment phone in less than 2 months. each one has their own weird issue. So disappoint with Samsung. I used moto smart phone for years, never have any problems.
I don't think it is hardware issue, because I can use Skype to make and receive phone calls. It looks like a common problem for many users here. Samsung still can't find a solution for that!
I think I found the problem. My phone has the same issue as mentioned in earlier message. I just found out that if I am answering a phone call through a Bluetooth device, the problems are gone, both with and without wifi calling setting. I think the problem might relate to the Bluetooth setting, so the sound always goes to the Bluetooth device. If there are no BT device connected, I cann't hear nothing. I tried to turned on/off the Bluetooth for the phone, I still can't make/answer phone calls without wifi +BT device.
These must be some bugs in their software system, I hope engineers can use this information to get a permanent solution.
If you guys have VoLTE on turn it off and see if anything changes.
Once I stopped using the google now app launch from every screen this issue stopped happening to me, you may want to try that.
Can you please explain the procedure you took to fix your issue
Are people only on KitKat seeing this issue? Because I think the Google now launch from every screen is a KitKat thing.
Turning off Call Recorder has solved issue on my Galaxy S4. Thanks for the pointer.
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