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.
-
Direct analog POTS line replacement -
Burglar and fire alarm signal transmission -
Elevator, paging and call-box auto-dial lines - Ring-down telephone circuits
-
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's certifications, listings, carrier approvals, and attestations — grouped by what each record actually is. Tap any badge for details, or see the full Trust Center.
Carrier approvals 3
Device & component certifications 9
Compliance attestations 3
Declared by DataRemote as the manufacturer — not third-party certifications.
Standards & code relevance 2
Standards and codes that govern the systems this appliance serves. Relevance to a code is not a product certification.
Video
See it in action
VAB-1 Install Guide Video — AT&T Internet Backup
Complete VAB-1 installation walkthrough for AT&T Internet Backup — dual-SIM setup, battery install, analog line connections, and failover checks.
Watch with transcript (3:37)Overview
What is the VAB-1?
The VAB-1 is a LTE POTS IN A BOX® appliance that replaces analog copper telephone lines. It presents standard RJ-11 FXS ports locally, so existing analog equipment keeps operating unchanged while the line itself moves to a managed cellular connection. Plug & play analog POTS line replacement
Approved for use on AT&T, Verizon, AT&T FirstNet.
What it supports
Solutions and endpoints the VAB-1 supports
Supported solutions
Supported analog endpoints
Equipment that keeps operating on this appliance after its copper line is retired.
- Analog telephones
- Emergency call boxes
- Fire alarm panels
- Burglar alarm panels
- Elevator emergency phones
- Intercoms
- Fax machines
- Dial-up modems
- Telemetry devices
Verifiable credentials
VAB-1 certifications, listings, and approvals
Each record below covers this specific model, grouped by what kind of credential it actually is — a third-party certification is not the same claim as a listing, a carrier approval, a manufacturer attestation, or an independent test engagement. Where an identifier is shown it is the one issued by the organization named, so the claim can be checked against their own record. Where it reads “identifier not published”, the record is confirmed by DataRemote's records but its identifier has not yet been published here.
Certifications
| Record | Issued by | Identifier | Verify |
|---|---|---|---|
| UL 864 (fire alarm control units) | Intertek Testing Services NA, Inc. | Intertek ATM, Reports 105634656CHI-001 and 105839662CHI-001 | Official record (opens in a new tab) |
| PTCRB certification | CTIA Certification (PTCRB) | PTCRB 117591, 112423, 108703 | Official record (opens in a new tab) |
| UL equipment safety (62368-1 / 60950-1) | UL Solutions | Report E500070-20220921 | Official record (opens in a new tab) |
| UL 2054 (battery safety) | UL Solutions | MH63085 (report MH63085-2022-09-06) | Official record (opens in a new tab) |
Listings
| Record | Issued by | Identifier | Verify |
|---|---|---|---|
| California State Fire Marshal listing | Office of the California State Fire Marshal | 7305-2384:0002 | Official record (opens in a new tab) |
| California Energy Commission appliance listing | California Energy Commission | CEC listings — 4 PSU/battery combinations (MS-V3420R190-065L0/L1-US, MSS-V2500WR120-030E0-US; CLY18650-3S6P, DRI18650-3S6P) | Official record (opens in a new tab) |
Carrier approvals
| Record | Issued by | Identifier | Verify |
|---|---|---|---|
| Verizon Open Development certification | Verizon | Verizon Open Development certificate, 2024-08-22 | Official record (opens in a new tab) |
| AT&T network certification | AT&T | AT&T Network Optimized certificate (ref 214049) | Official record (opens in a new tab) |
Regulatory authorizations
| Record | Issued by | Identifier | Verify |
|---|---|---|---|
| FCC equipment authorization | U.S. Federal Communications Commission | 2AJLF-VAB-1 | Official record (opens in a new tab) |
A certification applies to the models and configurations named in the issuing organization's record. It does not by itself make any particular installation compliant — that depends on the applicable code edition, the configuration, and the authority having jurisdiction.
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.