Alarm.com XT-512-US-AT Simon XT/XTi VoLTE Module, AT&T
Special Order: typically 2–6 weeks
Ships directly from the manufacturer. This is an estimated lead time, not a guaranteed delivery date.
Availability can change and lead times may be longer. If your project has a deadline, check with us before ordering.
A member of our team will check with the manufacturer and personally reply by email.
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Key Features
- Provides secure AT&T LTE VoLTE signaling so your security system stays connected without a phone line
- Enables interactive monitoring and two-way voice (firmware 185+) to improve response and homeowner communication
- Remotely programmable via the Alarm AirFX Web toolkit for fast updates and reduced service visits
- Hybrid installation supports common control panels for flexible deployment on new or retrofit projects
- Designed for reliable alarm reporting and integration with surveillance and monitoring services
Quick Specifications
- Product Model
- XT-512-US-AT
- Brand Name
- Alarm.com
- Product Name
- XT-512-US-AT Communication Module
- Product Type
- Communication Module
Explore the details
Product information
XT-512-US-AT
Overview
Keep alarm communications resilient and streamlined with the Alarm.com XT-512-US-AT Alarm Communicator Module. Built for professional security integrators, this AT&T LTE VoLTE module replaces vulnerable phone lines and VoIP-only links, delivering encrypted cellular signaling for consistent alarm reporting and improved monitoring reliability. The module supports two-way voice over LTE when control panel firmware is 185 or higher and installs as a hybrid communicator compatible with common control panels. At just 1.87" x 4.06", it fits neatly inside most system enclosures and can be remotely programmed and updated using the Alarm AirFX Web toolkit—cutting truck rolls and speeding service. Ideal for residential and commercial surveillance and alarm systems, it enables interactive alerts, faster event verification, and better end-user engagement. Upgrade legacy communicators to cellular VoLTE to reduce false alarms, improve uptime, and maintain compliance with monitoring standards. Add the XT-512-US-AT to your next installation or retrofit to strengthen security, monitoring, and voice capabilities—order or contact sales to specify for your project.
Features
- Provides secure AT&T LTE VoLTE signaling so your security system stays connected without a phone line
- Enables interactive monitoring and two-way voice (firmware 185+) to improve response and homeowner communication
- Remotely programmable via the Alarm AirFX Web toolkit for fast updates and reduced service visits
- Hybrid installation supports common control panels for flexible deployment on new or retrofit projects
- Designed for reliable alarm reporting and integration with surveillance and monitoring services
| General Information | |
|---|---|
| Brand Name | Alarm.com |
| Manufacturer | Alarm.com |
| Product Name | XT-512-US-AT Communication Module |
| Product Type | Communication Module |
| Product Model | XT-512-US-AT |
| Country of Origin | US |
| Manufacturer Part Number | XT-512-US-AT |
| Technical Information | |
| Device Supported | Control Panel |
| Physical Characteristics | |
| Width | 1.87" |
| Height | 4.06" |
| Product Information | |
| Installation Type | Hybrid (DIY + Professional) |
| Miscellaneous | |
| Compatibility | AT&T |
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Is this right for your project?
Confirm the model, required accessories and delivery needs before ordering.
- SKU:
- XT-512-US-AT
- Manufacturer part:
- XT-512-US-AT
How do I confirm compatibility?
Check the specifications and manufacturer documents for your existing system. Send us your model numbers and project requirements if you need help selecting equipment or accessories.
Ask a product specialistWhen will this item ship?
Availability is shown above. Special-order items and project quantities may need additional lead time. Contact us to confirm a delivery date before scheduling installation.
Shipping, freight and delivery detailsWhat should I know about returns?
Returns require an approved RMA. Consult the linked return policy for deadlines and eligibility. For standard non-defective returns, eligible factory-sealed items carry a 15% restocking fee and customer-paid return shipping; open-box and used items are refused. Defective and DOA claims follow the policy's separate terms. Special orders and other exclusions are final sale.
Read return eligibility and exclusionsAlarm.com XT-512-US-AT Simon XT/XTi VoLTE Module, AT&T
XT-512-US-AT