Nova Voice & Data Systems is one of the leading computer network and Internet protocol (IP) telephone solutions providers in San Diego and Orange County area. Based in Oceanside, Calif., the company offers a variety of products, such as headsets, telephones, telephone systems and Toshiba-system cards. It also provides several services in call-center solutions, telephony consultation, telephony designing, voicemail solutions and voice/data cabling. Its service area includes San Diego, Orange County, Oceanside, San Marcos, Vista and Encinitas.