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Multi-QoS
Channel Table Details
11
Filtering on Single Channels
You can filter on channels within a single call. For the Channel View table, the
filter menu available with the right-mouse click depends on the channel you select.
For Audio or Video channels, the menu has three filter options,
Quick RTCP and
RTP Channel Display Filter, Quick RTP Channel Display Filter, and Quick RTCP
Channel Display Filter
. You can create a display filter for the selected RTCP/RTP
channel without having to first go to the filter window. For a data channel there is
one filter option,
Quick Data Channel Display Filter.
Call Playback
To get a subjective measure of call quality, you can listen to calls that contain RTP
packets encapsulating PCMU or PCMA voice data (G.711 codec). The PCMU/
PCMA data is converted to wave file format and automatically played.
To playback a call from Multi-QoS, perform these steps:
1. Double click on a completed or active phone call which has RTP packets
containing PCMU or PCMA data.
2. Select
View Channel Details from the Call Detail View window.
3. The Channel Table appears. Right click on an audio channel and select
Playback PCMU/PCMA Data.
4. The
Save As window prompts for the name of the file. The audio data is saved
in a wave file format (.wav). After saving the file, the audio data is played.
5. A small dialog box appears while the audio data is playing. Press the
Cancel
button to stop playback.
Once the wave file is saved, it can be played from other media players.
Note that you will only hear one side of a complete audio communication. The
complete conversation is composed of two channels and you are only listening to
one of the channels.
Low Seq Num Lowest Sequence Number. Lowest RTP sequence number seen.
High Seq Num Highest Sequence Number. Highest RTP sequence number seen.
Table 11-12. SCCP Channel Table Column Descriptions (continued)