A user sent an INVITE request to a conference, or responded to an INVITE from a conference, but an internal error occurred ...

A user sent an INVITE request to a conference, or responded to an INVITE from a conference, but an internal error occurred parsing the SDP received from the user. This may be due to a malicious client deliberately sending a malformed SDP message body in an attempt to attack the Audio/Video Conferencing Server. The user has been removed from the conference.

Conference URI: %1, User URI: %2, Client SIP URI: %3