Asterisk Unregistering problem

Hey guys! Anyone got the unregistering of asterisk’s user problem. Well the problem is like this:

when i unregister the user the idefisk(softphone) stating there “unregistering user@asteriskserver” and at the same time my asterisk CLI is on but i couldn’t get any output of unregistered although i put the verboseness to 2147483647(max).

I thought the user was logged off so i tried calling the user and even though idefisk stating that he’s off but the call is still being answered on the idefisk.

huh?? Watz happenning ? Any solution guyz?? Thanks guyz!