Any learning resource to excel SIP troubleshooting?

[ashok_boin]

Hi all, This is for CCIE-Collaboration written exam preparation. We need to troubleshoot SIP messages interpretation among UC components like b/w Cisco CUCM to Cisco IM/presence OR Cisco CUCM-Unity etc. Can anybody advise any great book or learning resources to excel in any SIP message interpretation? I have gone through SIP call flows and troubleshooting located here as well as SIP Configuration guide documents in Cisco web site but not getting complete clarity/confidence on SIP messages yet. Thanks in advance... Regards... Ashok.

[R0g22]

Look into SIP School or Alta3 Research.

[Eric Ingram]

here is a video

https://community.cisco.com/t5/collaboration-voice-and-video/vip-webcast-recording-troubleshooting-sip-in-cisco-unified/ba-p/3105459

This blog Understanding SIP traces ***very helpful***

https://community.cisco.com/t5/collaboration-voice-and-video/understanding-sip-traces/ta-p/3137704

Use the new tool on cisco.com Collaboration Solution Analyzer.  After pulling CCM traces you can drag those files to the tool and it give a good ladder diagram to help you with the SIP message flow.

[ashok_boin]

Thanks a lot, Eric. Will try below options.

[R0g22]

You shouldn't be concerned about learning traces if you are not comfortable with SIP. Every UC product prints logs/traces differently but SIP messaging/components remain the same. Your first emphasis should be on learning and getting better at SIP. Move to traces etc later on.

[ashok_boin]

Hi Nipun,

Thanks for pointers.

As per sample questions for this exam, we need to really look into SIP message traces and need to answer the question. I am comfortable with SIP in general but not sure how Cisco CUCM and Cisco IM&P interact together OR how Cisco CUCM and Cisco Unity in specific SIP messages.

For eg, the question may ask what a given SIP message does towards Unity.