I have implemented a program which can automatically dial a call to a specified B-number and then collect results such as the dialing time, the hanging up time and all visiting status of voice call into a log file. My program will write the result into the log file when the remote party hangs this call up, my program calls the Hangup() function or There is an error occurring. In the testing process, My program made a call using Nokia N70 and then the remote party recieved this call. After that, The reciever terminated this call. I got the status changing from "EStatusUnknown" to "EStatusDisconnecting" but referring to Nokia's web -http://www.symbian.com/Developer/techlib/v9.1docs/doc_source/guide/Telephony-subsystem-guide/N1013A/one_call.html#guide%2esimpletelephony%2eoneCall- ,the status should change from "EStatusConnected" to "EStatusIdle". Why does the actual result differ from the reference?