I do not believe that QRT ties into CDR records. When the QRT button is pressed, the current call data is collected through an 'out of call control' process and stored into a database that can pull the information indpendently of a CDR record. Because the QRT reporting is done outside the call details, there is no flag in CDR to indicate that QRT had been triggered for that call.
In a Clustering over the WAN deployment, securing the ICCS (Intra-Cluster Communication Signaling) traversing the WAN can be a requirement. The IPSEC VPN Policy between nodes can be configured to secure the ICCS Traffic.To quickly verify that the IPSEC is...
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Attracted by the concept of dial plan and the passion of writing, I launched a challenge to write a workbook with practical scenarios covering in details this concept, the result is a workbook with 30 practice labs treating many components such route patt...
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Understanding Media Negociation in Interworking / Traversal Call : SIP <-> H323 through Expressway. Inside SDP and H245. Both signaling and Media goes through the Expressway so the IP address of expressway is offered to both SIP and H.323 endpoin...
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Sometimes you troubleshoot the phone presence status issue, or you are wondering how the status is retrieved by IMP, the best place to start is to look at the SIP Publish message sent by the CUCM to IMP, Capture the SIP Publish message using wireshark, in...
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The translation pattern is the most important tool in the Call Routing Process on Cisco Unified Communication manager.By definition a Translation Pattern is used to match the DIALED NUMBER (CALLED). After a match is found we perform a digits manipulation....
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