Log into the SmartNode via telnet with HyperTerminal, PuTTY, TeraTerm or any other terminal program that supports logging to a file (you will probably also want to switch off line wrapping).

Enable session capturing and then issue the following commands


show running-config

debug context sip-gateway signaling detail 5

debug context sip-gateway error detail 5

debug call-control detail 5

debug call-router detail 5

Make your test call

Wait for the traces to stop outputting

Close the captured file & inspect in your favourite text viewer.