SSO stands for Single Sign-On. SSO makes it so that you log into one service, and are authorized for other programs. Companies use SSO to make it easier for their customers to use several services. They let you use your account to access other programs and services that they integrate with. Nextiva utilizes Single Sign On for its platform. A customer logs in once to their NextOS domain and can access multiple products that they have with Nextiva, like Voice, CRM, or Surveys.