How to Unregister?

Hi all,

When i am using database show command, i can see more
than 100 users are registered but actually they are
not 100 some IP Phones are continue registered even i
closed and switch off the IP Phone.

Actually i am doing Windows based GUI, so i want to
display all real registered users. I am using mySQL
relatime for authuntication.

I will be appriciate if any one can tell me how i can
unregister so i will make some code to do
unregisteration which ip phones are not registered.

I will be appriciate for your replies.

Hi all,

Any Idea Please?