We currently have OCS 2007 R2 in place for internal purposes and have succesfully integrated some of our Tandberg MXP units. We also have a Codian 4505 mcu that we would like to integrate. I've tried without success. The codian is running Software version 3.1(2.13) Build 6.14(2.13) I've tried with NTLM as well as adding the codian as a trusted host. I've tried with TCP and TLS without any luck. Does anyone have any tips on getting this to work. Also if this does work is desktop sharing supported? Would the mac messenger client be able to call the codian? Currently macs can't successfully call the MXP units. Using the codian as a workaround would suffice for macs.