ITSS Telecom will be performing a software upgrade to the UNTHSC PBX Phone System this Saturday, May 6th. The maintenance window will be from 10am to 6pm. The phones will not be down for the entire time; however, there will be intermittent outages due to rebooting the phone system and various related services such as voice mail. The upgrade should be complete and all phone services restored by 6pm. Please call the Telecom office at 817-735-2595 if you have any questions about this upgrade. Thank you.