Howard County's 911 dispatch center had technical difficulties Monday morning, the Howard County Department of Fire and Rescue Services reported.
"Verizon Wireless is currently down," the department said in a statement after 11 a.m. Monday.
"Callers are reporting hearing a hum when they dial," according to the report, which said that despite the hum, dispatchers could hear callers. People calling 911 should provide their name, address and the nature of emergency, officials said.
By 1:15 p.m., the issue had been resolved, according to the department, which said no calls were lost and there was no negative impact on public safety.