Single Sign-on allows employees to access all the company applications with one set of credentials. The credentials can include email, phone number, username, and password, depending on the company. The company routes all logins through an Identity provider (IDP) with which the company has a purchased license. The IDP usually hosts a login page to enter their company credentials before entering any application. Single Sign-on provides better security at the central authentication point, limiting the possibility of phishing.
Each user contact email address must be unique when creating user extensions or call queue extensions to ensure no conflict with Single Sign-on for your account.
Note: RingCentral does not currently support Single Log Out (SLO).