Ports and services for WebRTC


PureCloud WebRTC has specific ports and services configurations to consider before you configure a firewall in various network scenarios. The diagrams presented here show how to configure the ports and services for various scenarios.

As you view the diagrams to determine which one best illustrates your particular WebRTC set up, keep the following questions in mind:

  • Are you using BYOC Cloud/PureCloud Voice Edges or BYOC Premises/LDM Edges?
  • Are your agents:
    • Inside the same network/firewall as the Edges?
    • Outside or in a separate network/firewall from the Edges?
    • In both (some inside and some outside)?
  • Is the firewall configured as Endpoint Dependent (Symmetric) or Endpoint Independent (Asymmetric)?

PureCloud Voice – Asymmetric/Symmetric NAT

BYOC Cloud – Asymmetric/Symmetric NAT

BYOC Premises – Asymmetric NAT

BYOC Premises – Symmetric NAT


This diagram illustrates a symmetric NAT configuration that applies only to the firewall for external traffic. If your symmetric NAT configuration applies to the firewall for both internal and external traffic, see the next diagram titled Client inside firewall – 2.


This diagram illustrates a symmetric NAT configuration that applies to the firewall for both internal and external traffic. If your symmetric NAT configuration applies only to the firewall for external traffic, see the previous diagram titled Client inside firewall – 1.



For more information, see Ports and services to configure on your company firewall.