I found on a CME install that I had one phone that would not get paging even though it was assigned to the same paging dn that all other phones were assigned to. I thought it was a bad phone so I replaced it with another one which did not fix the problem.
So in the end I moved the phone to an unused ephone number and then it worked.
Has anybody encountered this before? I am running 12.2.24T2 code.