Valcom VIP-851-25 SIP 20W Gateway

The Telecom Spot Expert Review

The VIP-851-25 bridges IP paging networks and legacy analog speaker infrastructure — it registers as a SIP device on the IP phone system and converts IP audio into analog amplified output that drives up to 40 Valcom one-way amplified speakers. This makes it the correct gateway for facilities that want to add IP paging control without replacing existing analog speakers throughout the building. The 25V output matches Valcom's 25-volt speaker line standard for the amplified speaker assemblies it drives. PoE+ (802.3at) power means a single Ethernet cable provides both network connectivity and the elevated power draw the 20-watt amplifier requires beyond standard PoE's 15.4-watt limit. Contact closure and VOX activation options on the audio input support external trigger devices, emergency systems, and microphone inputs without requiring a separate interface module. The Form C relay handles auxiliary output control for signal lights, relays, or door hardware. Removable screw terminal connectors simplify field wiring and replacement without cutting and reconnecting conductors.

Key Features

• SIP IP paging gateway with 20W amplified 25V output for up to 40 Valcom amplified speakers
• PoE+ (802.3at) powered — single Ethernet cable for network and power
• 1 audio input, 2 audio outputs; contact closure or VOX activation
• Form C relay for auxiliary output control
• Removable screw terminal connectors for simplified field wiring

Technical Specifications