International Day Pass question
My husband and I just signed up for a mobile share plan, and he added the International Day Pass as we're planning a trip to Canada in a few weeks. We also regularly visit a town that borders Canada without crossing the border. I understand that I can turn off the day pass on my phone or turn on airplane mode to avoid the charge. However, I'm somewhat confused as to what actually triggers the charge. Is it enough if my phone simply connects to a Canadian tower, or does it actually have to have use (for example, a text, a phone call, or data usage)? I understand incoming calls/texts would count as usage, as well as outgoing. I'm just concerned that even being in the vicinity of a tower would do it... Thanks for any help!