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QoS VoIP.ms

MichaelGonzalez

I'm trying to setup QoS for voip.ms (vancouver server). I setup a traffic shaping policy but cant seem to get anything meaningful setup. I am hoping someone has a walk through of how to set this up.

Thanks



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  • 0

    Michaeil,

    can you share some screenshot of your configuration? Rules and traffic shaping policy.

    Thanks.

  • 0

    Hi Michael,

    Greetings.

    Please refer the link and cross check the configurations for QoS over VoIP services.

    https://community.sophos.com/kb/en-US/123057

    Please post screenshots of the configuration as requested from 

    Let us know if you have any further questions.

    Thanks

    Sachin Gurung

  • 0

    Thanks!! I did this. But don't I need to also add the RTP ports? I also don't notice any traffic going through the policy. The UDP port is correct. VoIP.ms uses SIP: 5060 UDP RTP Range: 10001-20000 UDP

    I have attached the screenshots. 

  • 0 in reply to MichaelGonzalez

    Thanks!! I did this. But don't I need to also add the RTP ports? I also don't notice any traffic going through the policy. The UDP port is correct. VoIP.ms uses SIP: 5060 UDP RTP Range: 10001-20000 UDP

    Absolutely!  Just doing SIP 5060 isn't going to do much of anything for you.  SIP is just signalling, very minimal traffic.   The RTP stream is carrying your voice packets and is the important traffic to provide QoS to.  That KB article is not complete.

    So, you want to create the RTP service.  And you also want to create FQDN hosts for the voip.ms servers (single or group depending on your needs).  This will ensure the policy is only applied to traffic to those destinations and doesn't catch other UDP traffic on those ports.

    Then set the DSCP and apply the QoS policy.

  • 0 in reply to DavidWilliams1

    I believe this worked! Thanks a lot for the help! 

  • 0 in reply to DavidWilliams1

    Hi, I know your posting is a bit older but I have a question regarding the DSCP Marking about which I can find nothing in the forums and helps.

    We have a customer whose VoIP telefones send with DSCP Marking 46.

    If in the firewall rule I set the DSCP Marking to 46 does it mean, that it will apply the rule only for those packets that carry this marking?

    Or does it just mean that the firewall will add the DSCP Marking to the packets?

    And if second option is the case, is there a way to create firewall rules that discriminate on the incoming DSCP Markings coming from the clients?