No incoming or outgoing calls

[DeeKid]

For the past 2 weeks my galaxy a20 will not dial out or receive any calls.  In and out texts still works fine.  Done hard reboot etc and no changes.

[hTideGnow]

hi @DeeKid 

did you get a text from PM earlier, similar to this one after what is happening:
https://productioncommunity.publicmobile.ca/t5/Get-Support/text-my-service-will-degrade-in-2-days-pl...

and this is the background to the network change that affected you 

https://www.publicmobile.ca/en/get-help/articles/850-turndown

basically, Telus is refarming all of their 850 to 10 MHz LTE B5 in their markets, mainly BC, AB, Windsor, Ottawa, Montreal, Quebec City.   Bell has not done this, so it won't affect area that has Bell networks which Telus/PM use

So, it might affect voice calls for phones that has only 850 Band 5 on the phone but lack 1900 Mhz, those phone people bought in other country.  That's why your iPhone , Pixel are working but not Vivo.  Vivo is not designed for North American and not have all the required 3G bands

[softech]

@DeeKid 

A20 is not a North American model of phone and hence it likely impacted by this recent change:

https://www.publicmobile.ca/en/get-help/articles/850-turndown

You need another phone that designed for Canada with the proper bands PM needs, like Samsung A16 or A36.