Cannot Register Yealink T44W Phone

[neshima]

I am using the 3cx hosted trial but cannot connect a Yealink T44W phone/router. Getting error message that my ip 72.235.206.55 register request was rejected. Says Block WAN requests in ON. How do i fix this.

 

[SteveITS]

https://www.3cx.com/sip-phones/yealink-t4-series/

Did you upgrade the firmware first? If it's not current/up to date enough, it will fail and the server will block the IP.

And to be clear you're adding it as "direct connect"?