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.
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.
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.
Choose Your Device
Select from rugged portable radios, vehicle-mounted mobile radios, or our smartphone app. Every option works on the same network.
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.
Communicate Instantly
Press and talk. Groups, individuals, and dispatch are all connected in real time. GPS positions update continuously for full situational awareness.
One Network. Every Form Factor.
Whether your team uses radios, vehicles, or smartphones - all devices connect on the same Sentinel network with no silos.
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
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
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
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
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
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
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
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.
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.
Utilities
Coordinate crews across wide service areas with instant group communication.
Construction
Keep job sites moving with instant coordination and noise-canceling audio.
Schools & Campuses
Unified communication for security, facility staff, and administration.
Transportation & Logistics
Track fleets and coordinate drivers with GPS-enabled PTT.
Energy & Mining
Reliable communication across remote extraction sites, refineries, and energy infrastructure.
Government & Public Works
Coordinate municipal services, waste management, and city infrastructure.
Healthcare & Hospitals
Instant communication for medical staff, security, and facilities management.
Hospitality & Resorts
Elevate guest experiences with seamless staff coordination across large properties.
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.
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.