Vodavi Technologies CXZ-638831 Key Service Unit

The Vodavi XTSC-IP KSU Key Service Unit is a centralized call processing and extension-management hub for IP-enabled business telephone communication systems. It is a networked telecommunications control unit from Vodavi (MPN XTSC-IP KSU; Reference CXZ-638831) that enables IP telephony and voice communications while centralizing management of lines and extensions across offices, commercial facilities, customer service centers, and enterprise networks that rely on multi-line configurations. Common replacements include Vodavi XTS KSU, Vodavi Infinite KSU, and Vodavi Starplus STS KSU, underscoring its role within the Vodavi XTSC-IP KSU family for maintenance, repair, or system expansion in commercial communication systems.