AIM Call Out is a Voice over IP PC-PC, PC-Phone and Phone-to-PC service provided by AOL via its AOL Instant Messenger (AIM) application that replaced the now defunct AIM Phoneline service in November 2007.
AOL launched an Open Voice platform which is a developer's toolkit that allows developers to more easily develop products that will interface with AOL's network. This will allow AOL customers to use third-party software clients or hardware devices to bypass the their normal telephone infrastructure.