http://blogs.technet.com/b/drrez/archive/2011/04/11/microsoft-lync-server-2010-resource-kit-enterprise-voice.aspxMicrosoft Office Communications Server 2007 and Communications Server 2007 R2 introduced some of the core features needed to address Enterprise Voice requirements. Microsoft Lync Server 2010 communications software builds on those solid investments anden-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.technet.com/b/drrez/archive/2011/04/11/microsoft-lync-server-2010-resource-kit-enterprise-voice.aspx#3420723Tue, 12 Apr 2011 07:24:44 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3420723John Liu<p>Hi, in the call flow chart (pict 10), should there be NOTIFY (200) / 200OK, and BYE/200OK between Ted and Call Parking &nbsp;application to end the communication after he receives the 200 OK from BOB?</p> <div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3420723" width="1" height="1">