Here's our scenario: The operator logs in to our system, and has their UUID parked. The system calls the customer when requested, which creates a UUID. The operator and customer UUIDs are bridged. We watch for events from the customer UUID to determine when the customer has hung up their end of the call, which causes the operator to be parked again. However, I'm seeing some unrecognized UUIDs after bridging the call (i.e. that weren't returned by the place call code.) Are there any events which might indicate that a UUID is being changed by the system, and that I should be watching for a new UUID instead? -- Mark Sobkow Senior Developer MarkeTel Multi-Line Dialing Systems LTD. 428 Victoria Ave Regina, SK S4N-0P6 Toll-Free: 800-289-8616-X533 Local: 306-359-6893-X533 Fax: 306-359-6879 Email: m.sobkow@marketelsystems.com Web: http://www.marketelsystems.com Visit our Blog for industry related information. http://marketel-systems.blogspot.com/