For me it was in the settings for RCS texting. It required me to input the phone number manually, I also asked Bell to correctly register the phone, as it isn't one they sell.
So checked IMEI for Oneplus 12, it was good. Phone supports all 3 5G bands on the Bell network, the Oneplus canada website says it supports 5G, but still no 5G. I am in 5G supported zones, so phoned bell to get phone registered correctly on the Bel...
So after a 43 minute call with a lovely tech support lady, she reset at her end, I turned my messages off then on and suddenly the number changes to the one I have. Side note, I tried to have this fixed at a BELL store near me and they were unable t...
Having the exact same problem, as well my USA calls are frequently dropped, or don't work at all. Tried manually to choose the network as outlined in the FAQs but still huge network problems with the calling and texting.