Known Issues

  1. SIP ALG is enabled by default.
  2. DNS proxy is enabled default as well, causing intermittent registration failures on Polycom phones.

Resolution

  1. Login to the router.
  2. Go to Security > Rules > Scroll down to the bottom of the page > Do the following:
    1. Enable SIP ALG: Uncheck.
    2. Enable DNS proxy: Uncheck.
      • This option is only needed if you have or plan to purchase Polycom phones.
    • Respond to Ping on Internet Ports: Check.
      • This optional step is needed to allow your firewall to respond to our our Call Quality Monitoring and Troubleshooting server.
    • Click Apply to save.
  3. This step is only needed if you have or plan to purchase Polycom phones:
  4. Go to WAN Setup:
    • There will be WAN1 ISP and WAN2 ISP options there.
    • Detemine which WAN connection your phones are using.
    • Click on WAN1 or WAN2.
    • If you do not know, you will need to contact your IT or a tech-savvy individual who can help you determine this.
      • Scoll down to Domain Name Server (DNS) Address > Set the following:
        • Primary DNS: 8.8.8.8
        • Secondary DNS: 8.8.4.4
        • Click Apply to Save.