{"product_id":"italk-450-dual-sim-ptt-mobile-radio","title":"iTalk 450 Dual Sim PTT Mobile Radio","description":"\u003ch2\u003eiTalk 450 Dual SIM PTT Mobile Radio: in-vehicle push-to-talk over cellular for wide-area fleet communication\u003c\/h2\u003e\n\u003cp\u003ePoC mobile radio · Dual SIM 2G\/3G\/4G failover · Individual, group \u0026amp; broadcast calling · A-GPS positioning · Standard DIN-slot install · 9-36V DC\u003c\/p\u003e\n\u003cp\u003eThe 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 \u003ca href=\"https:\/\/www.2wayradiosolutions.com\/collections\/icom-radios-1\"\u003eiCom Radios\u003c\/a\u003e collection.\u003c\/p\u003e\n\n\u003ch3\u003eWho it's for\u003c\/h3\u003e\n\u003cp\u003eThe 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 \u003ca href=\"https:\/\/www.2wayradiosolutions.com\/products\/icom-f6021-uhf-mobile-radio\"\u003eIcom F6021 UHF Mobile Radio\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePush-to-talk over cellular:\u003c\/strong\u003e instant wide-area voice over 2G\/3G\/4G mobile networks with no repeater infrastructure to maintain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual SIM failover:\u003c\/strong\u003e two SIM slots automatically switch to the second network if the first loses coverage, keeping units connected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible calling modes:\u003c\/strong\u003e individual, group, and broadcast calls with reliable digital voice clarity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA-GPS positioning:\u003c\/strong\u003e cellular-assisted GPS improves time-to-first-fix and location accuracy in dense urban areas where satellite signals are weak.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatcher visibility:\u003c\/strong\u003e an online\/offline indicator shows which units are switched on and active.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle-ready install:\u003c\/strong\u003e fits a standard DIN slot and runs on 9-36V DC, eliminating the need for voltage converters in heavy vehicles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003ePush-to-talk over cellular (PoC) mobile radio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNetworks\u003c\/th\u003e\n\u003ctd\u003e2G \/ 3G \/ 4G mobile networks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSIM\u003c\/th\u003e\n\u003ctd\u003eDual SIM slots with automatic network failover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCalling modes\u003c\/th\u003e\n\u003ctd\u003eIndividual, group, and broadcast calling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVoice\u003c\/th\u003e\n\u003ctd\u003eDigital voice clarity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePositioning\u003c\/th\u003e\n\u003ctd\u003eAssisted GPS (A-GPS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDispatch\u003c\/th\u003e\n\u003ctd\u003eOnline\/offline unit indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOne-touch buttons\u003c\/th\u003e\n\u003ctd\u003e3 pre-programmable or over-the-air programmable buttons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVoice messaging\u003c\/th\u003e\n\u003ctd\u003eRecords dispatch voice messages for playback; built-in echo suppression\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAudio\u003c\/th\u003e\n\u003ctd\u003eInternal speaker; optional external speaker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating voltage\u003c\/th\u003e\n\u003ctd\u003e9 to 36 volts DC (no voltage converter required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInstallation\u003c\/th\u003e\n\u003ctd\u003eStandard vehicle DIN slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControls\u003c\/th\u003e\n\u003ctd\u003eStandard or optional keypad, fist microphone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVendor\u003c\/th\u003e\n\u003ctd\u003e2Way Radio Solutions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eTo order the iTalk 450 or confirm network and SIM requirements for your fleet, contact us at 800-507-6002.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat is a PoC radio?\u003c\/h3\u003e\n\u003cp\u003eA 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.\u003c\/p\u003e\n\n\u003ch3\u003eHow does push-to-talk over cellular work?\u003c\/h3\u003e\n\u003cp\u003ePush-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.\u003c\/p\u003e\n\n\u003ch3\u003eDo PoC mobile radios need a SIM card?\u003c\/h3\u003e\n\u003cp\u003eYes. 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.\u003c\/p\u003e\n\n\u003ch3\u003eDo you need a license for a PoC mobile radio?\u003c\/h3\u003e\n\u003cp\u003ePoC 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.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the iTalk 450 handle GPS in built-up areas?\u003c\/h3\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is a PoC radio?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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. 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