will 3cx pbx on DHCP IP automatically update dns record?

[mike louis]

if 3cx pbx runs on a public dynamic/DHCP IP address, will it automatically update myserver.ca.3cx.us when the IP is changed? the ISP changes the IP but not often, and pbx outage for a few hours is not a big concern for my situation.

 

[Saqqara]

Yes, it will if you set the wan to be dynamic instead of static

Std and pro license dns ttl is 6 hours, so could take this long before the fqdn is updated. Enterprise is 5 mins

 

[ChrisC_3CX]

I'm sure you probably already know this but, I do have to mention that we recommend using a static IP only for production environments to avoid these kind of "issues" whenever the public ip changes.

This is also mentioned in our "First Time Configuration of 3CX" guide: https://www.3cx.com/docs/manual/configuring-your-pbx/