we use Cisco switches and Nortel Phones. When Monitoring my DSCP on the cisco switches I see alot of incoming packets using DSCP 10. I Dont think I have my Qos setup to accomodate this DSCP setting. Can someone tell me what the packets do. Does someone have the complete cycle of packets and their DSCP tags for an end to end converstaion? thanks.
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DSCP
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It depends on what you are looking for. Nortel use DSCP value 40 for control packages i.e setup of a call, and DSCP 46 for the voice stream. This is tagged both by the media cards, signalling server and the phone itselves by default.
During the setup of a call the ip-phone use a control packet that is setup via the signalling server. When the actual voice is terminated the phones starts talking directly to eachother and the signalling server is not a part of the voice stream.
If you want details you have to be more spesific, because there is not a simple explanation for this...
I2007
During the setup of a call the ip-phone use a control packet that is setup via the signalling server. When the actual voice is terminated the phones starts talking directly to eachother and the signalling server is not a part of the voice stream.
If you want details you have to be more spesific, because there is not a simple explanation for this...
I2007
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