US regional mobile operator Cellular One, which primarily serves Tribal Lands and rural communities in rural Arizona, New Mexico and Utah, has selected Optiva to support the modernisation of its network and the launch of VoLTE technology. The press release notes: ‘Cellular One partners are phasing out their 3G networks to free up spectrum and infrastructure to support new network services. In response to this phase out, Cellular One is transitioning its subscribers to VoLTE service for both in-network and roaming coverage.’
Cellular One, which is backed by Smith Bagley Inc., currently operates a network of more than 230 cell sites, covering 60,000 square miles.
Source: https://www.commsupdate.com/articles/2023/05/04/cellular-one-phases-out-3g-transitions-to-volte/