I have a Deco M5 mesh system successfully setup for the last few years. In the household we have multiple iPhones -
2x on the Vodafone UK network
1x on the o2 UK network
All have WiFi calling functionality.
I have undertaken address reservation for the devices, but as far as I can see I can only open ports 4500 and 500 for one of the devices, not all 3.
Is there a logical way to sort this out?