How to Enable/Disable SIP OPTIONS

Enabling this sends a SIP Options packet is sent to the SIP Provider every 60 seconds. Depending on your router, this may help to keep the NAT entries active and your SIP device won't be moved to another port due to (SIP) inactivity. It's also can be used to determine the latency of the far end, response latency for these requests are shown in the System Status page. 

To enable or disable:

1. Go Setup > Voip Providers

2. Click Modify Voip Provider

3. Select Connection Settings

4. Set Qualify Hosts to YES or NO to enable/disable