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Clarified my experience with FaceTime audio.
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TMHahn
TMHahn
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I don't know of any way to force a call to use data instead of cellular minutes, or everyone would be doing it.

One option you have is to enable Wi-Fi calling. If you are logged into a wi-fi network, you can make calls using the wi-fi. Go to Settings > Phone > Calls: Wi-Fi Calling and switch it to ON. Not every carrier allows this, so if the setting isn't there, obviously you can't use it.

You can also use Google Voice for free. You could probably get a number local to your Canadian origination and still be able to call home while you're on the road. Skype calling has a similar option. Both have apps for the iPhone.

It was brought to my attention that you can also use FaceTime audio (as the other answer suggests). I've had problems with this personally, but others have had success with it!

I don't know of any way to force a call to use data instead of cellular minutes, or everyone would be doing it.

One option you have is to enable Wi-Fi calling. If you are logged into a wi-fi network, you can make calls using the wi-fi. Go to Settings > Phone > Calls: Wi-Fi Calling and switch it to ON. Not every carrier allows this, so if the setting isn't there, obviously you can't use it.

You can also use Google Voice for free. You could probably get a number local to your Canadian origination and still be able to call home while you're on the road. Skype calling has a similar option. Both have apps for the iPhone.

I don't know of any way to force a call to use data instead of cellular minutes, or everyone would be doing it.

One option you have is to enable Wi-Fi calling. If you are logged into a wi-fi network, you can make calls using the wi-fi. Go to Settings > Phone > Calls: Wi-Fi Calling and switch it to ON. Not every carrier allows this, so if the setting isn't there, obviously you can't use it.

You can also use Google Voice for free. You could probably get a number local to your Canadian origination and still be able to call home while you're on the road. Skype calling has a similar option. Both have apps for the iPhone.

It was brought to my attention that you can also use FaceTime audio (as the other answer suggests). I've had problems with this personally, but others have had success with it!

Source Link
TMHahn
TMHahn
  • 1.2k
  • 9
  • 17

I don't know of any way to force a call to use data instead of cellular minutes, or everyone would be doing it.

One option you have is to enable Wi-Fi calling. If you are logged into a wi-fi network, you can make calls using the wi-fi. Go to Settings > Phone > Calls: Wi-Fi Calling and switch it to ON. Not every carrier allows this, so if the setting isn't there, obviously you can't use it.

You can also use Google Voice for free. You could probably get a number local to your Canadian origination and still be able to call home while you're on the road. Skype calling has a similar option. Both have apps for the iPhone.