Hello Dears,i have changed DNS ip to ESXI  & vcenterbut i failed to change it on admin, it give me ( invalid ip).it possible to be a network connectivity access issue?   thanks for your help in advanceTHXMichel 

dears,can i get some help to add some Avaya phones to my CUCM 10.5i have followed the manual with no luck.

Hi, how i can get all my device serials on CCM 10.5.2 i need the software name. THX Michel

how to decrease the meeting  conference ID generated by the system from 9 digit to 4 digit.example Meeting Number:995 839 430THX