After reviewing submissions, state officials settled on the FirstNet State Plans provided by AT&T.
"These new sites will lead to a top quality public safety network for our first responders and enhanced coverage for all of our citizens", said Sununu.
USA territories have until March 12, 2018 to decide whether or not to participate in the FirstNet Radio Access Network, the communications network for America's first responders.
Earlier this month, Sununu announced that the state would indeed opt-out of the network, and select an alternative network that would plug into the nationwide network powered by AT&T and FirstNet.
By moving to opt in at the deadline, New Hampshire will retain AT&T's commitment to build 48 new tower sites across the state - an opportunity that may have been lost had the state held out beyond December 28.
In September, FirstNet delivered state buildout plans to all 50 states, the District of Columbia, and two U.S. territories, Puerto Rico and the U.S. Virgin Islands, according to FirstNet Responder Network Authority.
Sununu said opting out and going with Rivada would have given the state better coverage, more system control and an opportunity to share in revenue streams.
Although Brown made an "opt-in" decision, his letter referenced concerns about the FirstNet state plan for California that were detailed in another letter authored by Mark Ghilarducci, director of the Governor's Office of Emergency Services (CalOES). American Samoa, Guam, and the Northern Mariana Islands are also eligible for inclusion and have until March 12, 2018, to decide if they want to opt out. "Many of these states had previously expressed serious interest in pursuing an independent opt-out path".
Florida has joined a national program created to improve mobile communications for first responders. "FirstNet looks forward to our continued partnership with the state's public-safety community".
Phil Bryant today announced that he has accepted the nationwide public-safety broadband network (NPSBN) deployment plan offered by FirstNet and AT&T on behalf of his state, making MS the 46th state-not including three territories-to "opt-in" to the FirstNet system by today's deadline.
The opt-out decision, and the entire process leading up to a decision allowed the state to maintain leverage to "ensure that the AT&T proposal was one of the best in the country", Sununu said.