About the Company DSB VOICE & DATA SERVICES PTY. LTD. is a specialist electronic security, communications, networking and audio-visual services business operating in Victoria. The company provides installation, maintenance, fault diagnosis, repair, testing, configuration and calibration services for a range of electronic systems and equipment, including CCTV and surveillance systems, security and alarm systems, intercom systems, audio and video doorbells, home theatre and audio-visual systems, …