Solved QoS Setting

[Trevor Gordon]

We are using the latest Windows Client on Windows 10 for all our calls. I have been asked to setup QoS to ensure our phone calls get priority.

I can't seem to find any information on whether 3CX Windows Client sets DSCP or not, from my findings it does not. Though that seems very strange that it wouldn't, or is Windows 10 stripping it.

Can anyone help?

Things I have tried.

I am using wireshark have setup a DSCP column and can see the different DSCP settings coming trhough from other applications so far I have seen, blank,CS0(default), CS1 and AF11(Skype Call).



I have tried setting the group policy to tag the 3cx application, which didn't make any difference


So I tried setting it in powershell as someone online suggested group policy doesn't do it in Windows 10

 

[eddv123]

Hi Trevor,

I think something you need to consider in the first instance is that the desktop where the phone resides is in the data VLAN (I would presume without looking at your network configuration).

For VLAN based settings look at the extension itself under "provisioning ".

https://www.3cx.com/sip-phones/vlan-configuration/

 

[Trevor Gordon]

Thanks eddv, however I have just got it working. I had been testing 3CX without a config loaded, so it may be that without that, it doesn't do any communication ie, checking for updates.

My setup that is working is as follows....

3CX with user config loaded
application set to full path and filename
reboot computer after change​

Now I can see the DSCP setting I set in the Local Group Policy Editor on the packets in wireshark.

 

[YiannisH_3CX]

Glad to see the issue has been resolved.