HostStandby didnt work. We followed exactly all the details and the configuration provided and tech support logged in to find out why the host stand by didn't work. They couldn't find out anything and never gave us an update.
CPU Utulization extremely high.
Everytime a phonebook were uploaded CPU utl. was at 90% most of the time yeastar s300 hanged and a hard reset was required. Tech support told us it is because of the phone book.
No CallBack internal phones
no option to have call back of internal phone numbers