iTalk 450 Dual Sim PTT Mobile Radio

iTalk 450 Dual SIM PTT Mobile Radio: in-vehicle push-to-talk over cellular for wide-area fleet communication

PoC mobile radio · Dual SIM 2G/3G/4G failover · Individual, group & broadcast calling · A-GPS positioning · Standard DIN-slot install · 9-36V DC

The iTalk 450 is a push-to-talk over cellular (PoC) mobile radio that uses mobile networks to deliver instant, wide-area communication from inside your vehicle. It installs in a standard vehicle DIN slot and looks and operates like a traditional in-vehicle two-way radio, with a standard or optional keypad and a fist microphone for a familiar, easy-to-use experience. Browse the full range in our iCom Radios collection.

Who it's for

The iTalk 450 suits fleets and mobile teams that need reliable, wide-area voice from the cab without the range limits of conventional radio. Its dual SIM failover and A-GPS positioning make it a strong fit for operators covering large or built-up service areas. If you need a conventional UHF in-vehicle unit instead, see the Icom F6021 UHF Mobile Radio.

Key features

• Push-to-talk over cellular: instant wide-area voice over 2G/3G/4G mobile networks with no repeater infrastructure to maintain.
• Dual SIM failover: two SIM slots automatically switch to the second network if the first loses coverage, keeping units connected.
• Flexible calling modes: individual, group, and broadcast calls with reliable digital voice clarity.
• A-GPS positioning: cellular-assisted GPS improves time-to-first-fix and location accuracy in dense urban areas where satellite signals are weak.
• Dispatcher visibility: an online/offline indicator shows which units are switched on and active.
• Vehicle-ready install: fits a standard DIN slot and runs on 9-36V DC, eliminating the need for voltage converters in heavy vehicles.

Specifications

To order the iTalk 450 or confirm network and SIM requirements for your fleet, contact us at 800-507-6002.

Frequently Asked Questions

What is a PoC radio?

A PoC (push-to-talk over cellular) radio uses mobile networks rather than traditional radio frequencies to deliver instant communication at the press of a button. The iTalk 450 is a PoC mobile radio that supports individual, group, and broadcast calling with digital voice clarity.

How does push-to-talk over cellular work?

Push-to-talk over cellular sends voice over mobile (2G/3G/4G) networks. On the iTalk 450, pressing the PTT button opens an instant voice channel for individual, group, or broadcast calls, and an online/offline indicator shows a dispatcher which units are active.

Do PoC mobile radios need a SIM card?

Yes. PoC radios operate over mobile networks, so they require a SIM. The iTalk 450 has dual SIM slots and automatically switches to the second 2G/3G/4G network if the first loses coverage. Contact us to confirm SIM and network requirements for your area.

Do you need a license for a PoC mobile radio?

PoC radios communicate over commercial mobile networks rather than licensed radio spectrum. For your specific requirements, contact us and we can confirm what applies to the iTalk 450 in your region.

How does the iTalk 450 handle GPS in built-up areas?

The iTalk 450 uses Assisted GPS (A-GPS), which uses cellular-network data to improve time-to-first-fix and provide more accurate device location in dense urban areas where satellite GPS signals may be weak.