1. IBM Sametime is an instant messaging software with integrated voice, data, and video solutions.

  2. InterCall is a service provider of cloud-based unified communications services.

  3. A messaging app for teams who see through the Earth!

  4. Zoom unifies cloud video conferencing, simple online meetings, group messaging, and a software-based conference room solution.

  5. GoToMeeting is a web conferencing service offering a range of services which are available on Mac, PC, iOS and Android devices.

  6. Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

  7. HipChat is hosted group chat and video chat built for teams. Supercharge real-time collaboration with persistent chat rooms, file sharing, and screen sharing.

  8. Cisco Jabber lets you access presence, instant messaging (IM), voice, video, voice messaging, desktop sharing, and conferencing.

  9. Hangouts bring conversations to life with photos, emoji, and even group video calls for free. Connect with friends across computers, Android, and Apple devices.

  10. Skype for Business, formerly Lync, is unified communications platform that enables instant messaging, conferencing and online meetings