Home About Services Parts Contact Address DSI P.O. Box 73893 San Clemente, CA 92673 E-mail sales@dsi-telecom.com Phone (949) 361-3725 Hours Monday-Friday: 9am to 6pm Saturday: 10am to 2pm Sunday: Closed CONTACT US Name Please enter your name. Subject Please enter a subject. Email Please enter a valid email. Your Message Please enter a message. SEND MESSAGE Message Sent! Message failed. Please try again.