Ascendon System Upgrade

Ascendon System Upgrade. Means a major upgrade CSG makes to the Ascendon System on a [*********] basis. Promptly after CSG establishes the dates for the Ascendon System Quarterly Upgrade (but in any event no less than [*** *** ******] prior to a given upgrade), CSG will notify Customer in writing (email acceptable) of such dates. Unless otherwise agreed by the Parties, the Ascendon System [********* Upgrade will occur between **** ** *** **** ** *******] on the upgrade date.