Capitol Communications Group Communication Solutions For Your Business Call Today Services How We Help You Succeed… Phone SystemsWe offer reliable and professional certified installation, service, and maintenance of Panasonic Business Phone Systems.We also carry Konftel and Polycom Conference Phones. Data CablingWe provide cabling installation for all your data and Phone System needs.We provide estimates for all sizes of businesses; small, medium, and large. Door EntryWe offer Door Entry installation using the proven ISONAS access control solution.Once installed, you will have the convenient flexibility of the ISONAS cloud-based solution to control every access point.