Some IM services provide video calling, file sharing and PC-to-phone calling and allow users to switch back and forth. See text messaging vs. instant messaging. To use instant messaging ...

The inclusion of video in an instant messaging (IM) system, turning it into a video call. For example, in 2003, Apple introduced its iSight video camera for use with its iChat instant messaging.

Scheduled for release as part of Windows XP on October 25., Windows Messenger will for the first time allow users of the Microsoft IM tool to send audio and video files from computer to computer. Now, ...