XMPP is in actually in Cisco VOIP too, and that Cisco VOIP Unified Communications [1] stuff is incredibly popular. The client side Cisco Jabber app is Cisco's

XMPP is in actually in Cisco VOIP too, and that Cisco VOIP Unified Communications [1] stuff is incredibly popular. The client side Cisco Jabber app is Cisco's version of it that works with their VOIP. Believe it is both Client & Server, and that is an interoperable implementation that looks like a reskinned pidgin somewhat in older versions, but has a great deal more functionality now, and looks capable of doing VTC and other things [2] Considering how popular Cisco VOIP is, I think lots more people have XMPP functionality than they realize [1] https://www.cisco.com/c/en/us/products/unified-communications/jabber/index.html https://www.cisco.com/c/en/us/products/unified-communication... [2] https://www.cisco.com/c/en/us/products/unified-communications/jabber/index.html?socialshare=video-jabber-unified-app-exp https://www.cisco.com/c/en/us/products/unified-communication...