Re: To be honest you can't blame people for going to Zoom
... and prior to Lync, it was OCS (Office Communicator Suite)2007/2010...
Skype for Business is based on the same source code and has the same complex architecture.
Part of me wishes that we had paid the Cisco tax and gone to Jabber - it certainly integrates better with Call Manager and (rumor has it) slightly easier to set up and maintain...