This tool helps you analyze SIP call in the diagnostic logs from Expressway and VCS. It provides an overview of all the SIP Calls present in the logs as well as all the RTP Streams (when a packet capture is present in the archive):
For each call additional details are provided, such as:
Calling and Called Party information
Routing information (inbound and outbound zone used)
Duration, Disconnect Reason
The relevant RTP streams for each call leg are shown including selected coded, total number of packets, packet loss
The complete SIP signaling flow is available as well as a detailed view of each SIP Message by clicking on SIP message you are interested in:
The icons indicate what is advertised in the SDP (audio, video, content, encryption capabilities,...); if you hover over the icons you can see more details on this:
Some diagnostic checks and actions to resolve are suggested
Ability to export the signaling and media to a pcap file, which can be used for further analysis in Wireshark enabling users to make use of the advanced tools in Wireshark (the signaling is always exported as UDP)
Kristof Van Coillie - Technical Leader Services Vladimir Sidimak - TAC Engineer Necati Cehreli - TAC Engineer
Customer Use Cases
Analyzing diagnostic logs and packet captures can be time consuming and difficult as you need to find the call you are interested among possibly hundreds of other calls. This tool gives you a quick overview of all the SIP Calls, provides you useful information and shows you the relevant messages.
It helps to troubleshoot:
Failing Business To Business Calls
Failing MRA Calls
Failing calls for endpoints registered on VCS
Registration issues (by exporting all the SIP messages to pcap)
Cisco Expressway Cisco Video Communication Server
How to use this tools:
Upload the diagnostic log archive and click on Analyze
An overview is given of all SIP Calls found and all RTP Streams found
When selecting a call additional information is displayed for this call and you can switch between the different tabs to see the call details, the SIP signaling, issues found (when applicable)
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