You can make a call right within the mobile app to other users in your organization as well as to external phone numbers. To use this feature, your app administrator(s) must first enable phone features at the account level.
Users with Digital Lines must ensure their emergency addresses are up to date, otherwise, they will only be able to make calls to other people within the same company. Additionally, emergency calls placed from the mobile app are handled by the native carrier and certain mobile devices will require that you grant permissions to the mobile app to dial via the native dialer.