Since 1986, CSD has been involved with the sales, support and service of products which deal with the communications challenges in the commercial and public safety contact center marketplace. Our experience in these industries, and others, has helped us to provide our customers with the latest telecommunications technological solutions. We at CSD look forward to the opportunity to help with your current communications and IT needs. Please contact us regarding any of the core products listed below so that we can discuss your needs. Our Referral Program too can be of benefit to you when referring someone in need of our expertise. Call 281-579-1600 x 311 for details. ShoreTel VoIP and Alliance Voice recoders.