Does the Windows Zoiper application tag DSCP without any additional Windows configuration?

Question

I set the DSCP value to EF in my Windows Zoiper application but when I made a call within my network and ran wireshark, I don't see where the traffic is being tagged.  Is there any additional configuration in Windows that may need to be done to have this happen.

Note: I've checked QOS Traffic Prioritization on my NIC and it is enabled and Priority and VLAN is enabled on the NIC as well.

I can supply wireshark captures if that helps you to see.

Thanks

Comments

Which version of windows are you using and what version of Zoiper do you experience the issues with?

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Windows 7 Professional 64-bit

Zoiper 3.9.32144 32bit
Library Revision: 32121

Thanks for your time

Answer 1

Due to certain limitations it is no longer possible to achieve this on windows 7 from the
 application itself.

Please find guidelines to configure it on windows below:
 https://technet.microsoft.com/en-us/library/dd919203%28v=ws.10%29.aspx