Alarm.com XT-510-US-DP-AT Simon XT/XTi VoLTE Dual Path Module, AT&T

Protect premises with uninterrupted alarm communication using the Alarm.com XT-510-US-DP-AT VoLTE Dual Path Module. Built for Simon XT/XTi systems, this Alarm.com alarm communicator provides resilient cellular + IP signaling over AT&T so your security and monitoring remain active without a traditional phone line. Dual-path operation automatically switches between VoLTE cellular and an IP path to maintain surveillance and alarm reporting during outages or line tampering.

Installers and integrators benefit from remote programming through Alarm.com's AirFXWeb toolkit, reducing truck rolls and accelerating deployments. The module also supports two-way voice over LTE (requires firmware version 185+), enabling real-time voice verification and faster emergency response—ideal for high-value commercial or multi-site residential applications. With hybrid installation flexibility and wireless connectivity, the XT-510 helps modernize legacy Simon XT/XTi panels to meet current security monitoring standards.

Upgrade your alarm communicator to a dependable, carrier-backed dual-path solution for improved reliability and lower maintenance. Add the XT-510-US-DP-AT to your next security or surveillance project to enhance monitoring performance and reduce downtime.

• Provides reliable dual-path communication (cellular + IP) to keep alarm signals and monitoring online even if one path fails
• Eliminates the need for a phone line with AT&T VoLTE support, simplifying installations and reducing telco costs
• Enables two-way voice over LTE for verified alarm response (requires firmware 185+), improving incident handling and false-alarm reduction
• Remotely configurable via Alarm.com AirFXWeb for faster deployments and fewer on-site service calls
• Designed for Simon XT/XTi systems for seamless integration with existing alarm panels and monitoring services