Unknown medical emergency at Willis Rd and Route 1

Engine 203 and medic 203 , unknown problem, Route 1 and Willis Road, cross streets (number withheld) Willis Road and (number withheld) Route 1, fire district 17 , priority one, time 1902 .

Two 16 , you're responding to Commonwealth 20.

Answering route to route one and will respond at next pass.