Skype
From Miranda IM - Wiki
Skype is a protocol developed mainly for voice calls over the internet, but functions such as instant messaging, file transfer, and video conferencing are also available.
Miranda IM has some limited support for Skype via a plugin. The biggest drawback is the fact that the original Skype software needs to be running for the plugin to work.
The Skype plugin was first released in 2004 by leecher but is now maintained by tweety.
