REQUEST FOR PROPOSALS (RFP): NO: 4000004980 AFTER HOURS CALL CENTER MULTNOMAH COUNTY, OR Proposals due: August 29, 2016 @ 4:00 pm Pre-Proposal Conference: There will be an optional Pre-Proposal Conference on August 11, 2016 at the Lincoln Building, First Floor Pine Room, 421 SW Oak St., Portland, OR 97204 at 9:00 a.m. Proposals must be …