Yealink T54W won't provision with custom FQDN and certificates

[wrightwaytech17]

Trying to provision a t54w as a router phone with an enterprise license on v20. On the yealink I put my provisioning url from the 3cx admin page in and the extension for user and then the voicemail pin for password but on reboot it does not provision. https://voip.wrightwaytech.com/provisioning/shtph7rgmcbbr6

 

[SteveITS]

Is it the latest firmware?
https://www.3cx.com/docs/phone-firmwares/

You should not need to manually configure the phone.

 

[wrightwaytech17]

It is the latest firmware. Nothing happens if I do or don't manually configure after reboot. MAC address is copy pasted from the yealink admin page.

 

[SteveITS]

There were a handful of posts since December that the .74 firmware was required instead of .76, though I didn't find that problem myself. Just copy the link on the firmware page and change the number.

Also double check your/phone's IP isn't blacklisted in 3CX.

 

[JohnS_3CX]

I noticed you are using a custom FQDN with your own certificates. Yealink phones might not recognise your Root CA and in addition you may be missing intermediate certificates to complete the chain of trust.

The phones will not be able to work until both those matters are addressed.