I'm new to ESI; my company took over about 35 S-class systems from a company that went out of business about 2 years ago. However it seems like there is a lot buggy glitches and strange things happening. The s class systems all have frozen or locked up at one time or other;time and date changes but system will not function at all....only fix is to power cycle. We have upgraded all system to latest software...it fixed some..but some are still locking up.

We are also getting some problems with dropped calls, phantom rings and transfer and hold buttons not working at times. Another question is has anyone ever felt how hot an s-class gets inside the KSU? I can't believe there isn't a fan or better ventilation. Why don't the power supplies have a grounded plug?

If we continue to have these problems I may be forced to change these systems out with a Inter-tel or Norstar. Just too many problems for me.