Visit the Philips booth at the AOPHA Trade Show Ohio-based Certified Solutions Providers will be on hand at the AOPHA Annual Conference and Tradeshow. ... Visit the Philips booth at the GALFA Trade Show HTS' Georgia-based CSP will be on hand at the GALFA Conference & Trade Show. ... Visit the Philips booth at the CALA Trade Show California-based CSPs will be on hand at the California Assisted Living Association 2009 Fall Conference. ...