Hello Rothhall,
Welcome to the community!
While it is true that you will not get charged for incoming SMS, you should note that receiving (or sending) the data portion of a MMS outside of Canada would be considered roaming data and would trigger the daily roaming fee. You should also note that MMS data does not get transmitted via Wifi so it would still be considered roaming data even if you were connected to Wifi.
In addition, you should also note that rejecting or declining a call while outside of Canada is not the same as not answering the call. If you do not answer a call (ie let the call ring through), the call will get forwarded to your voicemail via the Fido networks. On the other hand, if you reject or decline a call when travelling, the call gets forwarded to your voicemail via a foreign network. The former would not incur the daily roaming fee while the latter will likely incur the fee.
Hope this helps 
Cheers
Hey @rothhall!
Welcome to the Community
You'd only be billed if you send a text message, make or answer a call or use data.
There's no charge for incoming text messages or for incoming calls you don't answer. If you don't answer a call, it will go to your voicemail. This is not billed but you would be billed if you retrieve the voicemail while roaming.
Hope that helps!
