Solved Samsung Galaxy S8+ Cannot Make Calls But Can Receive Calls

Welcome to another installment of our troubleshooting series where we aim to help our readers who own the #Samsung #Galaxy #S8+ fix the issues that they are experiencing with their phone. This is a flagship phone released last year that has a large 6.2 inch Super AMOLED display which makes it great to use for viewing various multimedia content. Although this is a solid performing phone there are instances when certain issues can occur which we will be addressing today. In this latest installment of our troubleshooting series we will tackle the Galaxy S8+ cannot make calls but can receive calls issue and other related problems.

If you own a Samsung Galaxy S8+ or any other Android device for that matter then feel free to contact us using this form. We will be more than happy to assist you with any concern that you may have with your device. This is a free service we are offering with no strings attached. We however ask that when you do contact us try to be as detailed as possible so that an accurate assessment can be made and the correct solution can be given.  

If you would like to browse the previous parts in this series then check out this link.  

S8+ Cannot Make Calls But Can Receive Calls

Problem: I have Samsung S8+, the SIM card in tray #1 (SIM 1) receives incoming calls normally but doesn’t make calls (outgoing) while SIM 2 make and receives calls normally, I switched the sim cards and the same problem appear in the SIM card in tray #1 which was working normally in  tray#2 and the SIM card in tray#2 work normally (the one was not making outgoing calls in tray#1). In brief; the SIM card in tray#1 receives calls but doesn’t make outgoing calls. the physical check up shows normal conditions in tray # 1, your support will be highly appreciated in advance.

Solution: Try checking if fixed dialing is activated for the SIM 1 of your phone.

  • Tap the Phone app
  • Tap the menu icon
  • Tap Settings
  • Tap the More Settings
  • Tap Fixed dialing numbers
  • Tap Enable FDN
  • Enter your PIN2 then tap OK
  • Tap Disable FDN

Once the fixed dialing option has been disabled try checking if the issue still occurs. If it does then I suggest that you backup your phone data then do a factory reset. This allows you to check if the problem is caused by a software glitch.

In case the above steps fails to fix the problem then you should bring the phone to a service center and have it checked.

S8+ Needs To Be Restarted In Order To Make Calls

Problem: I have an S8+ that I have to restart multiple times daily in order to send/receive calls.  What happens is that my phone rings, i go to answer it and my phone either freezes or there is silence on the other end (i can’t be heard and the caller can’t hear me).  A restart will sometimes fix it, but sometimes i need to remove the sim card and then reboot. I thought it was related to the bluetooth since it seemed to always happen after i was driving (i have always been able to hear fine though bluetooth) but now it’s happening at random intervals during the day.  I’ve factory reset the phone and booted it up in safe mode. While making a phone call in safe mode, i got a text. My phone call all of a sudden went silent and i couldn’t hear or be heard. Resetting the phone got me connected again. I’m going to try replacing the sim card today, but if that doesn’t work… any other suggestions?

Solution: If replacing the SIM does not fix the problem and since you have already performed a factory reset then this is most likely caused by a faulty hardware component. The best thing that you can do right now is to bring the phone to a service center and have it checked.

S8+ Calls Go Straight To Voicemail After Software Update

Problem: Here’s an issue that has me stumped.  Perhaps you’ve seen something like it before: Sometime after upgrading my Galaxy S8+ (Verizon) OS to Oreo v8, virtually all incoming calls started going directly to voicemail.  I checked call blocking and “Do Not Disturb” and neither one is enabled. Is there anything else I should be checking? I appreciate any help you can offer.

Solution: The first thing you need to do in this case is to check the call forwarding setting of the phone as it might be forwarding all your calls to your voicemail.

  • Go to your Phone app
  • Click MORE (or three dots icon) in the top right corner of the screen
  • Tap Settings
  • Tap Call forwarding
  • Tap Voice call
  • Tap Always forward and then Disable

You should also try turning off the VoLTE feature of the phone.

  • Go to your PHONE app
  • Tap MORE (or three dots icon) in the top right corner of the screen
  • Find and disable VOICE OVER LTE

In case the above steps fails to fix the problem then I suggest that you backup your phone data then do a factory reset. This way you can eliminate any software glitches that could be causing the problem.

S8+ No Network Signal

Problem: Galaxy S8+ Cell radio appears to have failed. I was listening to youtube and then signal went from full to 0 in an area with great coverage. Went all over local area all day still had 0 signal the whole time. Wifi calling works but turn off wifi and its not connected to mobile network. All the settings (apn, lte, etc. )look good. It just stopped Working. Is this normal to lose a radio?

Solution: Try restarting the phone as sometimes this will fix the problem. In case the issue still persists then proceed with the steps listed below.

  • Turn off the phone then remove the SIM card. If you have another phone then insert this SIM card in this other device then check if it is getting a signal. This way you can check if the SIM card is faulty and if it is then you will need to replace it with a new one.
  • Insert the SIM card back to your phone then start the device in Safe Mode. If the phone is getting a signal then the problem could be caused by an app you downloaded. Find out what app this is and uninstall it.
  • Backup your phone data then do a factory reset.

If the above steps fails to fix the problem then you will have to bring the phone to a service center and have it checked.


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Chad Buenaflor

Chad has been in the tech industry since 2000. He has a degree in Electronics Engineering and is interested in the hardware and software side of technology. Initially working for a Japanese semiconductor company as a Test Engineer for nearly 10 years, he then pursued his passion for internet technology by working for the support team of Time Warner Cable then finally joining TheDroidGuy as one of their troubleshooting and tech writers. On his free time he plays his favorite games on his PC, Xbox Series X, and Android phone. Contact me at Email

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