Have a client that didn't report any troubles or notice any problems but simply wanted to add a new extension for a new hire along with a new phone. Figured piece of cake so went into comm closet and noticed the SL1100 unit flashing blue followed by red. I logged in with PCPro and found that the system was not seeing one of the extension/co cards. So in programming, I can't see anything below extension 113. But yet extension 101 and those below 113 are working but can't be updated.
Any ideas?