LAN Messenger - LAN Messenger is a decentralized UDP IM-style chat client which supports usernames...
Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where you’re located, all in one platform.
MyChat - Secure instant messenger for any network
Skype - Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.
BORGChat - BORGChat is a LAN messaging software program.
WebEx - Cisco WebEx Web Conferencing, Online Meetings, Desktop Sharing, Video Conferencing