Hi, I have a SIP.CONF with a user section like this:- [1234] accountcode=HABITAZ type=friend callerid="HABITAZ/1234" context=milkshake userName=1234 secret=1234 host=dynamic dtmfmode=rfc2833 qualify=yes callgroup=1 pickupgroup=1 canreinvite=no When I login from a X-Lite phone, with "Username", "Authentication User" and "Password" set to '1234', everything works fine. The account code is set to 'HABITAZ' and everything seems fine. But when the "Username" on X-Lite is changed to pretty much anything else, eg. '4321' - and the "Authentication User" and "Password" left to be '1234', Asterisk still allows calls to be made from the phone, but the CDR countains a blank accountcode. How can I disallow login if the "Username" field on X-Lite is not set to a valid user section in SIP.conf? Andre