Phone not able to receive or make calls - no dial tone

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  • Updated 2 months ago
As per the title, my Samsung Galaxy S7 on Koodo is having a problem where I am not receiving any calls (there is no notification and callers are directed straight to my voicemail) and I cannot place any outgoing calls. I cannot even call into my own voicemail. When I try to place an outgoing call, the call screen comes up and it says it is "Dialing". However, there is no dial tone or any sound and after about 20 seconds the call stops.

This is the second time I have had this problem. The first time it lasted for about a day, a few months ago. It resolved itself before I was able to determine the cause of the problem. This time the problem has lasted for approximately two days so far. I have not noticed any other problems or symptoms with the phone. I have full strength signal and I can use data and other apps fine on both wifi and the mobile network.

I am interested in determining the cause of the issue and would like to find a way to resolve it. Thank you very much.
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Derrick Dodgson

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Posted 1 year ago

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Derrick Dodgson

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Also, I have confirmed that I can still send and receive text messages. The problem seems limited to the phone app or the phone-related hardware itself.
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Simon Hor

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I have the same issue now while switch to s new phone
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Robert, Mobile Master

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Do you have "Do not disturb" mode activated?
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Suresh Aryal

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Hi Derrick, I have the same exact issue. This started after I got the Nougat (Android 7.0) update. Restarting the phone fixes the issue. The only way to fix it permanently would be:
1. Downgrade to Marshmallow (Android 6.0.1)
2. Wait for an update that would fix this
I think the rumours before the Nougat update that Carriers and Samsung were having issues with Calls and Messages were true. They rushed the update without fixing it. 
Hope it helps.