Sentinel Push-to-Talk Logo
    LTE/5G Push-to-Talk Communications

    Instant Communication.
    Anywhere Your Team Works.

    Sentinel PTT delivers push-to-talk over nationwide LTE and Wi-Fi - connecting your team across any distance with the reliability of multi-carrier coverage, zero infrastructure, and instant deployment.

    AT&T + T-Mobile + Verizon Coverage
    Instant Push-to-Talk
    Redundant Network
    Group Calling
    GPS Dispatch Console

    Nationwide LTE & Wi-Fi

    AT&T, T-Mobile, and Verizon redundant network for true coast-to-coast coverage.

    Portable, Mobile & App

    Rugged radio devices and smartphone app - one network, every form factor.

    Multi-User Group Calling

    Connect entire workgroups instantly with a single button press.

    Dispatch & GPS Visibility

    Full dispatch console with real-time GPS tracking for your entire fleet.

    Redundant Infrastructure

    Geographically diverse servers ensure mission-critical uptime.

    Simple by Design

    Up and Running in Minutes, Not Months

    No towers to build. No licenses to obtain. No complex infrastructure. Sentinel PTT works over the cellular networks already in place nationwide.

    01

    Choose Your Device

    Select from rugged portable radios, vehicle-mounted mobile radios, or our smartphone app. Every option works on the same network.

    02

    Connect to the Network

    Your devices connect instantly over LTE or Wi-Fi using our multi-carrier infrastructure - AT&T, T-Mobile, and Verizon working together for maximum coverage.

    03

    Communicate Instantly

    Press and talk. Groups, individuals, and dispatch are all connected in real time. GPS positions update continuously for full situational awareness.

    Products & Solutions

    One Network. Every Form Factor.

    Whether your team uses radios, vehicles, or smartphones - all devices connect on the same Sentinel network with no silos.

    Most Popular
    Built for the field

    Portable Radios

    Rugged, durable handheld radios designed for demanding environments. Drop-rated, water-resistant, and built for all-day battery life.

    • LTE & Wi-Fi connectivity
    • Long battery life
    • Rugged durability
    • Simple PTT operation
    Request Info
    Vehicle-ready power

    Mobile Radios

    Vehicle-mounted units for fleet operators, first responders, and logistics teams that need reliable in-vehicle communication.

    • Vehicle power integration
    • Loud speaker output
    • GPS module built-in
    • Wide coverage antenna
    Request Info
    Any device, same network

    PTT App

    Turn any iOS or Android device into a push-to-talk radio. Perfect for supervisors, remote workers, and organizations with mixed device needs.

    • iOS & Android
    • No extra hardware
    • Group & private calls
    • Works over Wi-Fi or LTE
    Learn More
    Command & control

    Dispatch Console

    A full-featured web-based dispatch console giving your operations team visibility over every user, group, and GPS position in real time.

    • Live GPS tracking
    • Group management
    • Call recording
    • Web-based - no install
    Learn More
    Precision visibility

    Indoor Location Tracking

    Track personnel inside buildings where GPS fails. Uses iBeacon technology to provide sub-room accuracy and floor-level visualization.

    • Sub-room accuracy
    • Floor plan visualization
    • Multi-floor support
    • Low-power iBeacons
    Learn More
    Complete your setup

    Accessories

    Speaker mics, earpieces, charging solutions, and vehicle adapters to equip your team fully from day one.

    • Speaker microphones
    • Earpiece options
    • Multi-bay chargers
    • Vehicle adapters
    Request Info
    Coverage & Reliability

    Coverage That Keeps
    Your Team Connected

    Single-carrier solutions leave gaps. Sentinel utilizes AT&T, T-Mobile, and Verizon networks, so your team stays connected by automatically switching to the strongest available signal in any given area.

    • Multi-carrier redundancy - AT&T, T-Mobile, and Verizon network access
    • Automatic switching when one carrier has degraded signal
    • Coverage across all 50 states, U.S. territories, and Canada
    • Wi-Fi fallback ensures connectivity in buildings and basements
    • Geographically distributed server infrastructure
    • 99.99% network uptime SLA for mission-critical deployments
    Coverage
    Nationwide LTE/5G
    Carriers
    AT&T + T-Mobile + Verizon
    Nationwide LTE coverage map with AT&T, T-Mobile, and Verizon redundant network
    3 Carriers
    Redundant coverage
    99.99%
    Network uptime
    Key Features

    Built for Teams That Require Maximum Uptime

    Every feature is designed around one requirement: your communication works when you need it, without complexity or delay.

    Sub-Second Push-to-Talk

    Press the button and your voice reaches the group in under a second. No dialing, no ringing - instant.

    Unlimited Group Channels

    Create as many talk groups as your operation requires - by shift, department, site, or incident.

    Real-Time GPS Tracking

    Know exactly where every team member is at all times. Dispatch consoles update positions live.

    Scales With Your Team

    Add users in minutes. Whether you have 5 or 5,000, Sentinel scales without hardware changes.

    Interoperability

    Bridges existing radio systems so your current equipment can communicate with Sentinel devices.

    Lower Total Cost

    No repeater towers, no infrastructure maintenance, no FCC frequency licenses required.

    Industries We Serve

    Trusted Across Critical Industries

    From first responders to logistics fleets, Sentinel PTT serves teams where reliable communication is not optional - it's essential.

    Public Safety

    Mission-critical communication for law enforcement, fire, and EMS.

    Learn More

    Utilities

    Coordinate crews across wide service areas with instant group communication.

    Learn More

    Construction

    Keep job sites moving with instant coordination and noise-canceling audio.

    Learn More

    Schools & Campuses

    Unified communication for security, facility staff, and administration.

    Learn More

    Transportation & Logistics

    Track fleets and coordinate drivers with GPS-enabled PTT.

    Learn More

    Energy & Mining

    Reliable communication across remote extraction sites, refineries, and energy infrastructure.

    Learn More

    Government & Public Works

    Coordinate municipal services, waste management, and city infrastructure.

    Learn More

    Healthcare & Hospitals

    Instant communication for medical staff, security, and facilities management.

    Learn More

    Hospitality & Resorts

    Elevate guest experiences with seamless staff coordination across large properties.

    Learn More
    Why Sentinel

    We Work Until Your Team Does

    Choosing a communications provider is a long-term decision. Sentinel is built to be a partner - not just a vendor - with the infrastructure and expertise to back it up.

    Real Communications Expertise

    Our team comes from backgrounds in public safety, enterprise communications, and network engineering. We speak your language and understand your requirements.

    Dedicated Support

    You get real people - not a chatbot - when something needs attention. Our support team is available and responsive for all account sizes.

    Proven Deployments

    Sentinel PTT is deployed with public safety agencies, utilities, and enterprise teams across the country. Our network is tested in production daily.

    99.99%
    Network Uptime
    3 Carriers
    AT&T + T-Mobile + Verizon
    <1 sec
    PTT Latency
    50 States
    Nationwide Coverage
    Professional dispatch center with GPS tracking and push-to-talk communication
    Get Started Today

    See Sentinel PTT In Action

    Tell us about your team and we'll walk you through a live demo tailored to your industry. No commitment required - just a clear picture of what Sentinel can do for you.

    Live product demonstration
    Coverage review for your service area
    Pricing estimate based on your team size
    Q&A with our communications specialists

    Request a Demo or Quote

    No spam. We'll reach out within one business day.