hi @Daisyppwang
what phone do you have? Which province you are at?
If you are in Manitoba, PM has decommissioned their 3G network already and you need a phone that has VoLTE and is compatible with PM.
If you are not in Manitoba, you can still use 3G voice in most area but the voice calls could still be a problem as Telus is refarming all of their 850 to 10 MHz LTE B5 in their markets, mainly BC, AB, Windsor, Ottawa, GTA area Montreal, Quebec City. Bell networks, which Telus/PM use as well, is also working on that as well
If you phone has VoLTE and is compatible with PM VoLTE, you shouldn't be impacted at all. Use the IMEI checker on this page to confirm:
https://www.publicmobile.ca/en/get-help/articles/volte
But if your phone is not not on PM's VoLTE whitelist, and if your phone has only 850 Band 5 on the phone but lacks 1900 Mhz, if your phone were bought from another country, or an imported model, then you might be impacted with no 3G voice service at all
On the other hand, if the phone has 1900 Mhz, or it is a Canadian/US model, it likely won't be impacted as much but the voice calls quality might still degraded.
https://www.publicmobile.ca/en/get-help/articles/850-turndown
