Chambermaster Multi-Cultural Convention Services Network (MCCSN) Share: Hospitality Multi-Cultural Convention Services Network (MCCSN) 212 Sweetwood St. San Diego, CA 92114 (619) 265-2561 About Map About MCCSN is a woman-owned, full-service Meeting and Event Management company. We provide global hotel site selection and contract negotiation services and unforgettable meeting and event experiences. What's Nearby? Distance: 5 10 15 20 25 50 mi.