Release notes for Avaya Client Applications (ACA) 6.3.x as well as another ACA document for integration with Microsoft Lync show support for 96x1 SIP phones, but do not show support for 96x0 SIP phones. The reason that was given is that 96x0 SIP phones do not support shared control. I was wondering if this is really the case for the 9650 SIP phone, and that it cannot be an end point with ACA 6.3.x?