Sonim Device Approved for FirstNet PTT
Tuesday, December 08, 2020 | Comments

Sonim Technologies’ XP5s phone is among the initial devices approved for FirstNet Push-to-Talk (PTT), the nationwide mission-critical standards-based PTT solution.

FirstNet PTT is designed to enable public-safety personnel to use their smartphones, feature phones and specialized ultra-rugged devices like they would use a two-way radio, with highly reliable, high-performance calling. The Sonim XP5s, which is purpose-built for critical communications, includes many features that enhance the PTT experience.

The Sonim XP5s is FirstNet Ready, which means first responders can use it on the FirstNet network. FirstNet Ready devices are subject to hundreds of tests that cover several aspects, from security and durability to network impacts. This helps make sure that they can meet the needs of first responders. FirstNet Ready devices support access to the dedicated FirstNet network core, FirstNet First Priority,, which includes always-on priority and pre-emption for first responders, and FirstNet’s band 14 spectrum.

“Sonim has worked closely with AT&T since FirstNet was initially launched, and we’re pleased to now support their new public-safety-only push-to-talk (PTT) offering on our high volume XP5s feature phone,” said Sonim Chief Marketing Officer (CMO) John Graff. “The XP5s is one of the most widely used PTT-over-cellular (PoC) rugged devices in many safety-critical applications, and now with the support of FirstNet PTT, we believe it should further the acceptance and growth of rugged cellular-based mobility solutions in critical communications.”

Sonim has worked alongside AT&T, FirstNet and GPSLockBox in the deployment of many school bus communications systems utilizing the XP5s to provide reliable and secure PTT service to ensure student safety. Beyond instant communications with bus drivers, PTT solutions provide enhanced capabilities like tracking bus fleets and novel bus stop safety solutions not possible with older radio technology.

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