A rockslide on the Annapurna Circuit in Nepal buried Japanese solo trekker Akiho Sugiyama. Luckily a group of ex-army Israeli backpackers, including a medic, heard her cries, treated her and used their Chabad-supplied satellite phone to organize her rescue via Chabad in Katmandu.

http://www.israel21c.org/israeli-backpackers-save-life-of-japanese-tourist-in-nepal/