Hi, haven't talked to you in awhile!
Twice when we went to Progresso we used our cell phone. After we were home again we got calls from our 'server' asking about all the long distance calls being made from Mexico!!
They use technology and manage to get the information from your cell phone and can make calls from their cell phones using our number!
No, the missed calls arent attributed to something like that.
We no longer turn our cell phone on when down at the border.
Thanks for the info. You're braver than me, actually traversing the border. Keep your powder dry!