Fullerton Business Phone Systems is the leader in providing Avaya business phone systems to businesses throughout Fullerton, CA. Whether you are a small startup or an international corporation, our experienced technicians can assist you with selecting and installing the perfect system for your specific needs. Furthermore, our team provides customers with support and expertise when it comes to service and maintenance of their Avaya Partner systems. Lastly, we carry a wide selection of Avaya IP Office 500 systems, replacement handsets, analog cards and spare parts for Avaya Partner systems in case of any malfunctions. Contact us now to learn more regarding what we offer that can take your business communication to the next level!