SAN FRANCISCO (KGO) -- Pocket dialing has become overwhelming at San Francisco's 911 call center.
Researchers found 30 percent of 911 calls coming from cellphones in San Francisco in 2014 were mistakenly dialed.
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The new report from Google suggests this is putting a large strain on the system because workers have to follow up with every single pocket dial.
On average it took operators more than a minute to determine whether a call was real.
All cellphones are required to allow 911 calls without unlocking the phone.
FILE - A woman is seen taking calls at an emergency call center in this undated image. (KGO-TV)