Latest WCS server has extended logging and debugging options.
You can setup the logging on client side and server-side to get full logging information about calls.

On the client in flashphoner.xml:

<push_log>true</push_log>

On the server-side in flashphoner.xml
enable_extended_logging=true
client_log_level=debug
client_dump_level=2

How to test:

1. Make sure tcpdump is installed because it will be used for traffic dumps.
2. Make a call.
3. Type a couple of words in the ‘submit bugreport’ text field and press ‘submit bugreport’.
4. You will get the bugreport file name which has been saved on server.
5. You can find the bugreport in logs/bugreports folder.
Each bugreport points to the folder which contain all logs related session of the client.