- On the left, navigate to Network > Interfaces.
- Click the Configure button under WAN.
- Select the Advanced tab, and then enable both Egress and Ingress Bandwidth Management.
- Set your speed in Kbps in both of the boxes.
- Ingress= Download Speed (this should be set to your download speed in Kbps (x Mbps * 1024)Egress = Upload Speed (this should be set to your upload speed in Kbps (x Mbps * 1024
- Hit OK to save changes.
- Next, navigate to the Firewall Settings Menu, and then to BWM
- Ensure that Bandwidth Management Type is set to "Global"
- Ensure that at a minimum one priority above Medium (the default) is selected. In this case, we have selected "High"
- Set this to a guaranteed reserve of between 20-30%. (Make sure the guaranteed numbers add up to 100% as well)
- OPTIONAL - An Audian technician can give more details on the percentage number if needed, but essentially each voice channel uses around 50Kbps, so if you expect a maximum of 5 simultaneous voice calls, you would want to "guarantee" around 50Kbps * 5 = 250Kbps of bandwidth. In our example, the maximum upload is 5,120Kbps, so we would want to set aside 250/5,120 = 6% of the available connection as guaranteed. In most cases, 10% is a good number to use. Also keep in mind that this just GUARANTEES that much connection. If no voice traffic is being used, the full connection will be used for your data and other connections.
- Hit Accept to save your changes.
- Navigate to Firewall, Access Rules, and then to the LAN -> WAN rule that was created to allow VoIP traffic previously (in the Sonicwall Guide).
- Select the configure button
- Select the "Ethernet BWM" tab
- Check to enable both Inbound and Outbound Bandwidth Management
- Select the Priority that you set in the previous Firewall settings (in this example, "2 High")
- Select OK to save
You have now configured your sonicwall to automatically give a higher priority to any traffic that is going to the Audian servers, and to allow a percentage of your connection to be "guaranteed" for that traffic. This should eliminate any call quality issues with high usage clients. |