Используйте приложение APKPure
Историческую версию Nextiva App можно получить на Android
Nextiva приложение для унифицированных коммуникаций
The Nextiva App is a business phone service app that enables complete mobility for Nextiva customers. Stay connected when you're away from your office phone, or replace your desk phone altogether when you utilize voice, video, instant messaging, and presence services from your mobile device. It's like carrying your office in the palm of your hand.