Long Distance Failure 12/26

This is an update after the fact.....Yesterday 12/26 I changed out a bad CLI card in the Phone Switch starting at about 10:00 A.M. The process required me to transfer from Core 0 to Core 1. The campus had a momentary loss of dial tone while the transfer occuried. Once everything was restored I began receiveing complants of Can't call long distance. The Long Distance Cards were all synced up (no alarms). I contacted Qwest Long Distance and it was determined no functional problems existed with them. I then ran a Switch query and Long Distance Loop 51 was disabled. The Card itself showed normal. I reseeded the card and all began working at about 2:15.....