Public Safety & Health

Public safety and Enhanced 9-1-1 for wireless callers.

America’s national 9-1-1 calling system is designed to make sure that there is a nationwide, seamless communications infrastructure for reaching emergency services across all 50 states. Wireless carriers and legacy phone companies must meet specific standards for 9-1-1 calling – as established by the Federal Communications Commission.

Enhanced 9-1-1 location accuracy

Enhanced 9-1-1 Phase 2.

The current Enhanced 9-1-1 requirement (Phase 2) is that the phone number of the wireless device and information about the location of the caller are automatically provided to the emergency dispatcher who answers the call. The FCC currently requires location accuracy to within 100 meters (328 feet) for 67% of calls and 300 meters (984 feet) for 95% of calls.

Achieving greater accuracy.

New voluntary agreements reached by the industry in late 2014 will lead to more accurately locating indoor 9-1-1 callers, as well as their vertical location in high-rise buildings.

Emergency coverage is more than calling.

GPS helps locate heart attack victim.

“Air Idaho Rescue pilots were able to pinpoint the location of a local hunter in crisis at 7,200 feet using his cell phone GPS. The heart attack victim phoned Air Idaho himself and was located, retrieved, and transported to East Idaho Regional Medical Center all within 17 minutes of the call.”

Tweet saves life of injured biker.

“Lost and unable to walk after hitting tree roots and flying over the handlebars, an injured biker didn’t have a strong enough signal to dial out but tweeted: “I’ve had a serious injury and NEED Help!” At least six people called 9-1-1, and within minutes ambulances were dispatched.”

Texting after an earthquake keeps family in touch.

“A Georgia man was trekking through Nepal when a massive earthquake ravaged the country. He texted his wife to tell her he and his guide were alive and well after the disaster struck.”

+per day
T-Mobile handles more than 110,000 9-1-1 calls every day. Upward of 70% of all U.S. 9-1-1 calls are initiated on a mobile phone.
With nearly half of U.S. households using only mobile phones, 9-1-1 location accuracy has become a primary function of mobile infrastructure.
FCC requires 50-meter location accuracy on 67% of 9-1-1 calls.

Radio waves are part of America’s history.

Radio frequency (RF) is the same technology that has been used for radio broadcasts since the late 1800s. Mobile phones and wireless antennas use RF energy to send voice and text messages, as well as photos and videos. RF enables home electronics in kitchens, living rooms and bedrooms. Wireless routers, baby monitors, cordless telephones, video game controllers and microwave ovens are additional examples of every-day devices that use radio frequency.

What leading organizations say:


“Studies have shown that environmental levels of RF energy routinely encountered by the general public are far below levels necessary to produce significant heating and increased body temperature.”

American Cancer Society

“Public exposure to radio waves from cell phone tower antennas is slight for several reasons. The
power levels are relatively low, the antennas are mounted high above ground level, and the signals are transmitted intermittently, rather than constantly.”

The World Health Organization

“Studies to date provide no indication that environmental exposure to RF fields, such as from base stations, increases the risk of cancer or any other disease.”

U.S. Food & Drug Administration

“Available scientific evidence … shows no increased health risk due to radio frequency (RF) energy …”

FACT: According to the FCC: “ … the weight of scientific evidence has not effectively linked exposure to radio frequency energy from mobile devices … with any known health problems.” FCC Guides – Wireless Devices & Health Concerns