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Unable to make or receive calls

2: Seeker
2: Seeker

I have an unlocked Samsung Galaxy S8 on Vodafone. The SIM Card is old (pre-2018).

Since 7th February 2024 I am unable to make or receive calls at work. Previously I always had good signal inside and outside the building. Calls from my home are still ok. The features of this issue are:

- on trying to call out, no ring tone is heard and the phone app stops attempting to connect after a few minutes
- occasionally I heard 10 pips, before the phone call drops out, without connecting.
- I have once (in the late evening) managed to make a call, which went straight to the recipient's voicemail with no preceding ring tone.
-I managed two, very poor quality calls outside today. Yesterday I tried multiple different locations outside and was unable to make any calls
- at home calls work as normal
- I always get fair to good signal both at home and work.
- I can still text and use messenger apps and access the internet

The timing of this seems to coincide with Vodafone switching off 3G network, so I suspect the issues are related. Today we were also informed by our IT department that Vodafone network has problems affecting both personal and company phones. However, the problems I am experiencing already started last week.

I have tried the following:

-activating WiFi calling (makes no difference)
-resetting the network settings (as advised by Vodafone support via the chat function)
-removing the SIM card (as advised by Vodafone support via the chat function)
-restarting the phone before trying to make a call

Network settings are currently:


My plan includes 4G calling (VoLTE) but this does not appear in the network settings. I understand Samsung S8 can make VoLTE calls, so this appears to be an issue with the SIM/Vodafone settings.

Any advice would be much appreciated, othewise, it looks as if I will have to switch network as I need to be able to make calls for work, so this is causing quite some issues. I'm happy to provide further information if needed. Thanks in advance!





Hi @mb218. Thanks for reaching out about this. Sorry to hear you've been having some issues with your network recently. Thanks for trying those troubleshooting steps, it's unfortunate that these haven't worked for you. Our Social Media Team would be happy to take a closer look into this for you. Please could you get in touch here