I must be the only person without a cell phone.
I used to work in the Main OR and have to tote the "Bat Phone" - the in-hosptial phone as I was needing to be accessed, and access others. Always been a "roving" or "mobile" type. I did have access to a cell phone, never worked, hospital tried another scam...err...company, and it didn't work. I had landlines all over, and used them if need. If really bad, I used a Doctor's personal cell phone [amazing what quality buys over low bids]
Gubmint and Authority? Had a couple of situations serious, and needed Security, or Local LEO. Remember I am in the OR, sterile area, Scrubs or bunny suit.
Bad Boys decided to visit, picked the perfect time during a storm and we were on emergency power, seems they really wanted to visit a "cousin". This at 3 am and cousin has been in the morgue since 1am.
I block that door with a metal rod thru handles, sneak thru a equip storage area, and well, I was trying to get help, but be quiet about it...
Started tossing saline bottles [ more like bowling - sliding ] down the way to where I hoped a guard was...he was, bunny suit brigade (security and one UC LEO, what do I care?) come inside and the rest of security out going after the bad boys.
Saline bottles work better than cell phones IME in an area with lead doors, and other measures.
Doctors and I got compressed air - air horns and coaches whistles, scattered them about and worked out a plan with Security. Added more lights than what provided by Hosptital too.
Just as I have done with folks with kids, and with neighbors, cannot wait for 911 always, alert neighbors in on plan and the kids have Garrity disposable lights around necks and Airhorns . Between sounds and lights folks, especially elderly and kids, can be heard and seen by neighbors and Fire Dept.
Grew up without 911, less Gubmnint meddling, and no cell phones .