TTfone Venus 2 (TT31) - Portable Foldable Flip Phone - Big keys - Double Screen - Bluetooth - Camera - SOS button - Unlocked - Black (Wireless Phone Accessory)
This phone is quite handy for that as I did every Sunday solitary walks or wood in forests, always alone. I bought it because I had two crashes in a row without being able to tell someone by lack of network. In TTfone Venus, I have put that 4 contact