So I was double-checking before bed. But the Samsung SOS system also records and sends 5 seconds of audio. It is located under 'privacy and security'. Also the Google Location recording is default ON. 

If you're confident in the 3 quick taps not being accidently pressed, you could list '911' in the recipient section as well, for situations that you may not be able to call but merely press in your pocket. I'm 90% sure our 911 system has been updated to recieve txts. ADN reported that Fairbanks was done, and the rest began in mid-2015...unsure of completion and wouldn't rely on txting 911 without knowing for sure. (I'll ask tomorrow)