As a provider of VoIP related services we often use the debug output to help us troubleshoot problems, however, on the latest firmware version simply lifting the handset to go off hook and dialing a phone number produces over 300 messages at Debug Level 3. That's the device getting warmed up as once a call connects there are almost as many debug messages as there are RTP packets.
It would be great if the Cisco engineers could trim the number of messages being sent out