Known Issues

  1. SIP ALG enabled by default, and it needs to be disabled to prevent intermittent one-way audio and other call and phone feature failures.


  1. Log into the router > navigate to Security > ALGs
  2. Disable SIP > click Apply
  3. More information is needed on this router.
    • If you have one of these devices, please call Intermedia Cloud Voice Technicial Support so we can document how to make further necessary changes to prevent intermittent problems on Polycoms phones.
    • We need more information on how to change the DHCP DNS server addresses and disable DNS proxy/relay to prevent intermittent registration failures on just Polycom phones.
    • We need to determine if this device features Bandwidth Management (BWM), also known as Rate Control or Rate Limiting.
    • We also need to document how to allow the router to respond to WAN pings from our Call Quality Monitoring and Troubleshooting Servers, and
    • We need to whitelist the following IP supernet:
  4. This device supports IP Precedence QoS Policy Routing.  We strongly recommend that you enable this feature.
    • To Enable, go to Policies > Traffic Shaping > set to Auto