Please find the attached and updated "How to trace the Cisco Codec - TC & TE" PDF document (updated May 2011).
This document describes the process of how to collect relevant logs for system crashes, interoperability issues and problems with placing a call, check configuration etc for units running TC or TE software like the CISCO C-Series Codecs, the EX90 and the E20.
Let me know if you have any questions.
Kind regards,
Arne Østensen
Cisco, TSG