Change Transmission Rule of SD-WAN Network

In Yeastar SD-WAN network, traffic is automatically routed based on network conditions of the servers in the SD-WAN network. If necessary, you can change the transmission rule on the Working Server to force traffic to a preferred path.

Background information

Yeastar SD-WAN PBX networking supports the following two transmission rules:
  • Auto Forward: Intelligently choose between Peer-to-Peer (P2P) and Forwarding based on network conditions of the servers in the SD-WAN network to optimize traffic routing. When the servers are in good network condition, P2P is utilized for direct communication. Otherwise, traffic will be redirected through a dedicated Forwarding Server.
  • Forced Forward: Prioritize and redirect TCP or UDP traffic through a dedicated Forwarding Server, this helps avoid potential network latency and slow data transmission when using Auto Forward, ensuring the delivery of critical data.


  1. Log in to the PBX web portal of the Working Server, go to System > SD-WAN PBX Networking.
  2. At the top-left corner, click beside Transmission Rules.

  3. In the pop-up window, select a transmission rule and click Save.