Hi @Alexbw,
Thanks for your message.
We’re very sorry to hear that you’re experiencing issues with Wi-Fi Calling, especially while you’re also having signal problems. We understand how frustrating this can be.
To help resolve this, please try the following steps: restart your phone, toggle Wi-Fi Calling off and back on, and reset your network settings by going to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings. Once done, reconnect to Wi-Fi and check if Wi-Fi Calling starts working again.
Please keep us updated, and we’ll be happy to assist further if the issue continues.
Thanks,
Kwanele