POTS IN A BOX®
VAB-1
Plug & play analog POTS line replacement
The plug-and-play LTE gateway for POTS line replacement, carrying voice, fax, alarm, and M2M signals with dual-SIM failover.
LTE · Carrier-certified Trusted. Reliable. Everywhere. 
Capabilities
Key features & capabilities
Plug & Play
Direct plug & play analog POTS line replacement — 8 RJ-11 lines.
Dual-SIM LTE
LTE dual-SIM capable with optional GNSS location-based service.
24 hr Battery + UPS
Up to 24-hour failover battery plus UPS power for approved devices.
Alarm & Ring-Down
Burglar/fire alarm transmission and ring-down telephone circuits.
FAX & M2M
Legacy FAX, analog modem, and native analog M2M support.
Auto-Dial Lines
Elevator, paging, taxi and call-box auto-dial line support.
Use cases
Built for the endpoints your business relies on.
The VAB-1 carries the analog devices your operation depends on — preserving the behaviors each one needs.
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Direct analog POTS line replacement -
Burglar and fire alarm signal transmission -
Elevator, paging and call-box auto-dial lines - Ring-down telephone circuits
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Legacy FAX and analog modems -
Telemetry, command and control (SCADA)
Technical Specifications
Key hardware, power, voice, and connectivity details.
Dual-SIM LTE
2 SIM card slots
8 FXS Ports
With voltage protection
SIM Failover
Automatic switching
Up to 24 Hours
Hot-swappable battery
Interfaces
Interfaces
- 8 × RJ-11 FXS ports with voltage protection
- 3 × RJ-45 Ethernet: 1 WAN / 2 LAN (10/100/1000 Mbps)
- USB Type-A port
- 2 × SIM card slots (2FF)
- Cellular LTE bands: 2, 4, 5, 12, 13, 14, 66, 71
- 2 SMA antenna ports for LTE
- UPS power supply port for approved devices
- LED status indicators & reset button
Power
Power
- DC input 10VDC–16VDC, 5A barrel plug
- AC adapter (bundle-dependent): 12V 2.5A or 19V 3.2A
- UPS power port for external battery backup of approved devices
- Battery: 18-cell 15Ah lithium-ion
- Internal battery standby: up to 24 hours*
- Hot-swappable battery; graceful shutdown (sends battery alert)
Call Features
Call Features
- Voice over IP via LTE
- DTMF: in-band and out-of-band
- PESQ > 4.3 (G.711); 3.7 (G.729)
- Echo cancellation; CPC — Calling Party Control
- E911 support; TTY/TRS capable
- Caller ID / CWCID
- 3-way conference; hold, forwarding, transfer, waiting
- Ring / hunt groups
Environmental
Environmental
- Operating temperature: 0°C to +40°C (32°F to 104°F)
- Storage temperature: -30°C to +70°C (-22°F to 158°F)
- Relative humidity: 10% to 90% non-condensing
Full specs in the VAB-1 datasheet (PDF).
Software & management
Managed by Ara
The VAB-1 is provisioned, monitored, and troubleshot remotely through Ara — DataRemote's device management platform — so your whole fleet stays online from a single pane of glass.
- Alarm communication; modem M2M communication; advanced FAX support
- Secure / restricted web-based management
- Customer management dashboard
- Line status monitoring with alert capabilities
- Mass device management and provisioning
- Developer API for device integration
Certifications & compliance
The VAB-1 is certified across the carriers and standards below. Tap a certification for details, or see the full Trust Center.
Carrier certifications 3
Device & component certifications 14
VAB-1 frequently asked questions
What is the DataRemote VAB-1?
How long does the VAB-1 run on battery during an outage?
What can I connect to the VAB-1?
Is the VAB-1 certified for life-safety use?
Does the VAB-1 support dual-carrier failover?
Get a quote for the VAB-1
Talk to a specialist about deploying the VAB-1 across your sites.
Comparing options? See the 90X5, 90X1, 90X2, or the full POTS IN A BOX® lineup.