Skype for Business Server also supports remote users, both corporate users on the Internet (e.g.
Skype for Business Server uses Interactive Connectivity Establishment for NAT traversal and TLS encryption to enable secure voice and video both inside and outside the corporate network. This includes support for rich presence information, file transfer and voice and video communication. One basic use of Skype for Business Server is instant messaging (IM) and presence within a single organization.
