Wikipedia
Zultys
Zultys is a manufacturer of Voice-over-IP ( VoIP) communications systems for organizations with 10-10,000 users, with corporate headquarters in Sunnyvale, California. Zultys products include IP phone switches ( PBXs), a wide variety of IP business telephones, web and audio conference solutions, contact center systems and unified communications solutions through a global network of Zultys Certified Partners.