When connecting to the 9999 node with a bluetooth headset in use for input and/or output the following error message is seen. This has been observed on an iMac running OS-X 10.4 and on a MacMini running OS-X10.5.
Sometimes it scrolls repeatedly.
Echolinux error: An error occured while using the portaudio stream
Error number: -9999
Echolinux error: Error message: Invalid number of channels.