We recommend that you apply the Quality of Service (QoS) settings detailed below in your network.

Traffic prioritisation

Physical phones provisioned directly to PBX Blue and not through an SBC:

  • DSCP tag 46
  • Destination port TCP + UDP 5060
  • Destination port range UDP 9000-10999

Physical phones provisioned through an SBC:

  • DSCP tag 46
  • Destination port TCP + UDP 5090

Soft clients:

  • Destination port TCP + UDP 5090

Bandwidth reservation

If your internet connection bandwidth is low, we recommend that you apply a bandwidth reservation of 3-4 Mbps for VoIP traffic (depending on the number of endpoints you have). VoIP traffic can be defined by the traffic specified under Traffic prioritisation above. Consult your router or firewall documentation for instructions on how to set this up.