If you have bell phones with 10-4 capabilities I would go that way. It works like walkie-talkies but there is no interference. You would have to subscribe to it, if only for a month, and then cancel it when you get home. Once you subscribe to it, you can 10-4 anyone in North America for no charge. We did this on our recent trip. We were able to stay in contact with family at home who had these phones and since both dh's parents and my mom came with us (all having 10-4 phones), we were able to keep in constant contact.