Modern instant messenger for business
Take a look at MyChat, the company secured corporate instant messenger and collaborate solution. This program includes many various features, such as Active Directory integration, voice/video calls, private chats, multi-user conferences, server with powerful administrating tools, files exchange, common tree-like contact list, built-in scripts engine, integrations with 3rd software and many others. This IM works under Windows and in any modern web browser. Works well in terminal sessions, through the Internet, NAT and multi-level networks. Up to 20 online users — totally free.