Resolved: Mitel/ I2 Session Border Controller Maintenance Work
Monday morning June 1st from 6:00AM to 7:00AM, maintenance work will be performed on the session border controller that
handles Mitel/I2 voice traffic. Inbound and outbound calls could be interrupted during this time interval.
Change ID: CHG0032409
More information: Resolved: Mitel/ I2 Session Border Controller Maintenance Work
Story added 1. June 2015, content source with full text you can find at link above.