UC Phone Transition Day was on Tuesday, May 29, 2012, and is meant to be a proactive measure to ensure a smooth transition from the old phone system (Centrex) to the new phone system (UC Voice) for the campus community. CITES is asking campus users to begin using UC Voice as the sole means of phone communications from here on out. For most users this will mean using Microsoft Lync on their computers or IP phones instead of using their current desk phones. In addition, resource lines such as conference phones, common area phones, and departmental main numbers should be transitioned to UC Voice. More information on the importance of UC Phone Transition Day can be found on the new UC at Illinois Telephone Number Migration page.