In this video I take you through a basic introduction to CUCM SIP normalization with an example and a few tips on how to trouble shoot. I am passing through a header in this example for a differentiated ringtone. CUCM support the "Alert-Info" header but does not pass it through when placing a call.
I discuss the topology, explain where these scripts would get applied and then show a few key tricks I prefer when troubleshooting.
I mentioned a few documents in the video. First, this uses the Lua scripting language which you can find a decent book on it here: https://amzn.to/2lYxeF4
Here is the Cisco documentation on this process:
https://www.cisco.com/c/en/us/td/docs...
And finally, the Cisco LIVE presentation I mentioned as well: https://www.ciscolive.com/c/dam/r/cis...
That tail command I used:
file tail activelog /cm/trace/ccm/sdl recent regexp "SIPLua"
Finally, I have some additional notes on my blog if you wanted to check that out as well... http://technologyordie.com/cucm-sip-n...
#cisco #cucm