When hiking, I often find myself in areas where cell phone reception is poor or intermittent. Sometimes the signal is not good enough to make a call, but it is still possible to send text messages (SMS). I have often wondered how I could use this to summon help in case of an emergency.
I'm in the US, and as far as I know, it isn't possible to send text messages to 911. The only idea I've come up with is that I could send a text to a friend, and ask them to call 911 or the local authorities in my area and relay the information. This is inefficient, and requires that I find a friend who is by their phone. Is there a more direct way?
I'd prefer answers that don't require special equipment or pre-arranged services other than a standard cell phone.