Hi! If you purchase an E-SIM in Portugal, you would have to pay the rates of that provider to that provider. The phone is essentially a computer, and the SIM or E-SIM is what connects it to a provider.
I thought I could purchase a data only esim and use the data from that esim, but the voice and text from the Videotron sim.
So if that doesn't work... If I just stick with wifi (no esim) and assuming I disable roaming on my Videotron sim, does the Videotron wifi calling feature mean I can make calls and send texts on my phone (ie my Canadian Videotron phone number) to Canadian or Portugese phone numbers at long as I am connected to a wifi network in Portugal.
Hello there, regarding Wi-Fi calling, all details are included on this page: https://www.videotron.com/client/residential/wificalling
if your phone is dual SIM/natively supports eSIM, you might be able to assign a specific profile per use and your device should follow those rules. Most devices that are dual SIM capable offer you through the OS settings to specify which default SIM to use for 1- mobile data 2- calls.
Kindly check the available features and user manual of your device.
Hope that helps! Have a nice evening.