The oddest thing happened recently. While on a SIP call with with another Spark user (both of us were using Spark version 2.6.3 (12555), Openfire 3.7.1, and a Freeswitch as a SIP server) we suddenly had a video call session. The video appeared for both of us in a separate window. It never happened before, and I can not replicate it. AFAIK, there are no video capabilities in Spark unless a plugin like Red5 is used. Can anybody shed some light on what might have happened? Thanks.