Where cellular phone service is not available, travelers might consider an unlocked (no frequency restrictions) VHF/UHF radio or a satellite phone.
An emergency satellite communication device is an excellent tool to carry. This device can synch with a mobile phone to send routine and emergency messages, usually via text. Where cellular phone service is not available, travelers might consider an unlocked (no frequency restrictions) VHF/UHF radio or a satellite phone. Several countries worldwide require users of handheld radios and satellite phones to have permits, however; advise travelers that restrictions might exist at their destination, and to learn what they are before departing.