One conference site line class is not defined by service desk checking though MCU operation desk, when booking a conference by service desk. For example, the line type of conference site A is ISDN, but in the MCU operation desk it is “direct connection”.
This conference site cannot be joined into other conference when scheduling conferences.
The operation desk of conference site A has been defined as ISDN. After deleting and re-adding this conference site, it turns normal.
The data is error when we operate on database file MCU.dbf which is mapped by MCU operation desk through service desk. This phenomenon is attributed to network mapping insecurity. We can solve it by resetting conference site or rebooting service desk.