Cisco Systems 5, NAM manual Calls Table, Calling number as it appears in the signaling protocol

Chapter 3 Monitoring and Analysis

Media

•Voice Call Statistics: Number of calls per signaling protocol (SCCP, SIP, MGCP, and H.323) at each interval during the selected interval.

•Top N End Points by Jitter (ms): Endpoints that have the largest average of endpoint reported jitter during the selected interval.

•Top N End Points by Packet Loss (%): Endpoints that have the largest average of endpoint reported packet loss during the selected interval.

•Top N Calls by Jitter (ms): Calls that have the longest endpoint-reported jitter during the selected interval.

•Top N Calls by Packet Loss (%): Calls that have the most endpoint reported packet loss percent during the selected interval.

Calls Table

The Calls Table shows you calls that the NAM detected by inspecting voice signaling protocols’ payload. For this table to have data, the NAM must see:

•SCCP protocol: Call Information message of the call.

•SIP protocol: SIP INVITE message of the the call. Note that SIP protocol will be detected as per call leg.

•H.323 protocol: Call SETUP of the call.

•MGCP protocol: Create connection message of the call. Note that MGCP will be detected per call leg.

Note SIP and MGCP will be detected per call leg. Each call could be 2 or more parties. Each party has its own call leg from the call party to control entity, e.g. Cisco Call Manager or MGCP gateway. Any information that is not detected by NAM will be displayed as "-" or blank on the GUI screen.

To view the active calls, choose Analyze > Media > Detailed Views > Call Table. The Calls Table and RTP Streams for the Selected Call Table display. These tables show a list of all currently active calls.

Note Some values in the Calls table are not available until the end of the call, and Cisco Unified Communications Manager must be configured to have the IP phones send out the call status and quality information.

Note All calculated metrics in Table 3-21, Calls Table, are based on a one minute interval.

Table 3-21provides descriptions of the fields of the Calls Table.

Table 3-21	Calls Table
Field		Description
Calling Number		Calling number as it appears in the signaling protocol.
Called Number		Called number as it appears in the signaling protocol.

	User Guide for the Cisco Network Analysis Module (NAM) Traffic Analyzer, 5.0
3-40	OL-22617-01