dscp

  1. 3CX SBC - Set DSCP with nftables

    I noticed in the v20 Update 7 release notes that it says, "marked RTP traffic as high priority (TOS 46) ". When I upgraded to v20 about a year ago, I was surprised that the latest SBC software doesn't set industry standard QoS markings. I got to work in nftables to mark packets with correct...
  2. JulienM

    Enable QoS

    Hello, I am trying to enable QoS on the 3CX server. I changed the "MSRTPTOS" parameter with the value 46 and restarted my server (Debian). When I make a call, I see that my phone (Yealink) correctly tags the DSCP field to the value "EF" : However, for flows from the server to the telephone...