Cisco Systems NAM From inspecting the call signaling protocol, Inspecting call signaling protocol

Chapter 3 Monitoring and Analysis

				Media
Table 3-21	Calls Table (continued)
Field		Description
Calling Host Address			RTP receiving address of the calling party detected by the NAM
			from inspecting the call signaling protocol.
Calling Port			RTP receiving port of the calling party detected by NAM from
			inspecting call signaling protocol.
Calling Alias			Calling party name detected by NAM from inspecting call signaling
			protocol.
Called Host Address			IP address of the phone receiving the call.
Called Port			Port of the phone receiving the call.
Called Alias			Alias name, MGCP endpoint ID, or SIP URI of the called party
			phone.
Calling Reported Jitter (ms)			Jitter value reported by calling party at the end of the call.
Calling Reported Packet Loss			Percentage of packet loss reported by calling party at the end of the
(%)			call.
Start Time			Time when the call was detected to start.
End Time			Time when the call was detected to end.
Duration			Duration of the call.
			Note	When the call signaling’s call tear down sequence is not
				detected by the NAM, the NAM will assume:
				- the call ended after 3 hours in low call volume per interval
				- the call ended after 1 hour in high call volume per interval
				(high call volume is defined as call table filled up during the
				interval.)
Called Reported Jitter (ms)			Jitter value reported by called party at the end of the call.
Called Reported Pkt Loss (%)			Percentage of packet loss reported by called party at the end of the
			call.

If you click on a call row in the table, in the RTP Streams for the Selected Call display at the bottom of the page you will see all streams that are associated with the call. It will display the RTP streams that:

•have source address and port matched the call’s calling host address and calling port or called host address and called port

•have destination address and port that matched the call’s calling host address and calling port or called address and called port

Note There is a delay of two minutes of RTP streams statistics. As the result, there may not be any RTP stream information of the call.

The RTP Streams of the Selected Call table shows the overall RTP streams statistics that are calculated by the NAM. You can use this information to compare the views of the call endpoints and the NAM regarding the call’s qualities. The columns of the RTP Stream are described in Table 3-22.

	User Guide for the Cisco Network Analysis Module (NAM) Traffic Analyzer, 5.0
OL-22617-01		3-41