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CoS tagging for Voice

connect101
Level 1
Level 1

I'm using IPCommunicator,

How can I tag the voice stream to have a high priority than other application.

There is no IPPhone. There are just Softphone.

Thank you

2 Replies 2

4rmorris
Level 1
Level 1

Check out the SRND for end to end QoS:

http://www.cisco.com/application/pdf/en/us/guest/netsol/ns432/c649/ccmigration_09186a008049b062.pdf

There are specific examples for tagging traffic from PCs with softphone in there.

Good luck!

Ryan Morris

michaelchoo
Level 1
Level 1

AutoQoS has a parameter that allows you to extend the "trust boundary" to the PC. I think the syntax is "auto qos voip cisco-softphone". Problem with this, you have to ensure that you're not running high-bandwidth apps that can also set DSCP values, or you may encounter prioritization issues on your PC's NIC.

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