our client (agent) send us recorded call with strange conversation.
agent call to our server on channel 2 and make outbound call to client (tel no 88xxxxxxx) on channel 58.
after start conversation client on channel 58 disconnect, but VG not terminating immediately channel 2.
next client called 10 channel was transfer to channel 58, but connection (between channels, not witch client) channel 2 with 58 was still open.
In this case caller on channel 2 hear Agent on channel 58 active in conversation between channels 10<=>58