I can say with experience that the phone probably won't help you much in this country though. Brush up on winter survival skills. Truly, there are so few other visitors in this area during the winter months, that you may not see another vehicle all day. Hunting the region Game species that abound that are popular for hunting include gray squirrels and mountain quail. I may not pull the trigger often, but the hours spent afield are plenty worth it.
Most varmint hunters use light caliber rifles to avoid damaging the fur excessively.
It doesn't take much to put down a bobcat or coyote, and even a .22 magnum would do the job at short range. Quail and squirrels are abundant along the snowline too. Hunters can use shotguns for both, though some squirrel hunters would rather plink with a scoped .22, hoping for head shots to save the meat. The quail and squirrel seasons run until the end of January. There is some excellent fall fishing in the mid-elevation Sierra.