This is the basic process of opening a users local SIP UCCAPI logs within Snooper to use for analysis. Snooper is a valuable tool to help diagnose SIP traffic between clients and servers. Snooper.exe comes part of the Lync/OCS resource kit, which if you don’t already have you can download here. It’s a self-executable so you do not need to install it, just copy Snooper.exe to a client or server you intend to view the log files of and run it.
Also view the ms_diag.html file to view the number code descriptions that are used in the results.
Once you have it opened, select the Messages tab and it will be laid out like a Network Trace. From here you can see the SIP connects inbound and outbound to this client.