Push-to-Talk Over Cellular (PoC) vs Two-Way Radios
Two-way radios (LMR — land mobile radio) talk device-to-device or through a repeater on licensed frequencies. Push-to-talk over cellular (PoC) sends the same instant voice over 4G/5G and Wi-Fi instead. Here's how they compare for a frontline team.
Side-by-side
| Two-way radio (LMR) | Push-to-talk over cellular | |
|---|---|---|
| Range | Limited by power/repeaters; dead spots | Unlimited wherever there's cellular/Wi-Fi |
| Hardware | Dedicated handsets + repeaters | The phones staff already carry |
| Licensing | Often needs a spectrum licence | None |
| Safety | None built in | Panic/SOS + GPS, check-ins, man-down |
| Records | None | History, recording & audit logs |
| Outage | Works in a total cellular outage | Needs a data connection |
When a radio still wins
If you operate where there is genuinely no cellular or Wi-Fi — deep mining, remote wilderness, or sites that must work through a total network outage — LMR's independence is a real advantage. Many operations keep a few radios for that edge case while moving day-to-day comms to PoC.
When PoC is the better choice
For most security, retail, logistics, hospitality and field teams on covered sites, PoC wins on cost, range, setup and safety. You get instant voice plus panic alerts, location and accountability a radio can't provide, with nothing new to buy.
Move to push-to-talk over cellular
Sentriplex is PoC done right — instant voice, panic/SOS and dispatch on existing phones.
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