Busy Tone when Using the Cordless Internet Telephony Kit

From Asterisk Australia

Q. What can I do if I'm getting a busy tone when making a call using my wireless IP phone?

If you're getting a busy tone when trying to make a call, this may be due to a SKYPE or PC application that has not yet started, a USB cable that is not plugged in, a PC that is on standby/hibernate mode, or another party is offline. To resolve this, follow the instructions below.</p>

Step 1:
Make sure both SKYPE and the PC application are started on the PC and running properly. 

Step 2:
Make sure the phone is set up correctly. To setup the Cordless Internet Telephony Kit, click <a href="../../../../en/US/products/ps10033/products_qanda_item09186a0080a3594c.shtml">here</a>.

Step 3:
Wait for the remote party to be online.