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Tait and local mission-critical communications integrator PMC Associates showed users’ two-way portable radios seamlessly roaming to available cellular operators whenever the Project 25 (P25) radio signal was compromised, for instance inside shopping malls and other structures.
Current push-to-talk (PTT)-over-cellular applications, such as Tait’s UnifyVoice, allow increased access to two-way radio communications via a smartphone app, meaning staff members who do not carry portable radios or those outside the mobile radio coverage area can take part in radio communications. Tait is creating a network of networks that seamlessly identifies the best-available bearer, such as P25, Long Term Evolution (LTE) or Wi-Fi, to connect the user to a mission-critical network.
"The Monmouth County Sheriff’s Office is eager to be working with Tait on this emerging technology,” said Monmouth County Sheriff Shaun Golden. “We currently have a very robust digital radio network throughout Monmouth County. The ability to use Tait’s roaming technology by using the existing cellular and Wi-Fi networks for additional communications assures our first responder partners that they can do their jobs without the worry of losing radio communications with our center.”
The Tait solution can integrate with any manufacturer’s system over the P25 Inter Subsystem Interface (ISSI), therefore maintaining identifications (IDs) and encryption end to end. Another key benefit of the solution is that it uses the first responder’s smartphone as an alternative to having to purchase high-end LTE-equipped radios.
“The user experience doesn’t change,” said Matt Crossan, general manager of PMC Associates. “All the roaming across networks happens seamlessly in the background, with no user intervention. In a life-safety situation, public-safety professionals tell us all time, ‘I don’t care how the radio works, just that it works; I need to know that the call will go through when I push the button for help.’ And that’s how this works.”
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