View Invisible Contacts and If Your Message is Seen (2017) HD

This is how to view seen Skype messages and invisible contacts: http://trustedinstalls.com/extensions/skype-multi-addon-seen-function-invisible-viewer/ This addon allows you to see which contacts are invisible without calling or texting. it will also show if your messages have been delivered and seen by the recipients. The addon allows you to call people even if they have do not disturb mode set on. Works with all Skype versions and all operating systems (MAC OS, Windows, Linux).