Configuring yealink W60B and W53H via ip phone line forbidden

[protel3]

I am having issues getting dect handset working on 3cx instance - the phone configures and shows extension number on the handset but when I try and make an outbound call I get the message on the phone screen "Via IP Phone Line Forbidden. I'm a bit of a novice - the version I am using is 18 and the system is hosted in Amazon Lightsail. I have a number of other extensions registered and working on the system. I initially had the unit provisioned via Stun and I have also tried an SBC and getting the same result with both of them. Any assistance would be greatly appreciated.

 

[JohnS_3CX]

Hello,

Please provide full info as per here: https://www.3cx.com/community/threads/information-to-provide-when-requesting-help.67558/


And also, do internal calls work? (ie. extension to extension, or simply calling into your voicemail)

 

[protel3]

• 3CX Version, e.g. Standard Annual 16.0.2.910 -

I have tried it on version 18.0.1608 and 16.0.9

• Server OS, e.g. Debian 9 / Windows Server 2012 R2 / Raspberry Pi

Debian 9

• Is the 3CX Server Hosted and where?

Hosted - Lightsail

• IP Phone Make/Model/Firmware

Yealink W60B and W53H - updated all firmware to latest recommended

• Provisioning Method: Local / VPN / STUN / SBC

Both Stun and SBC

• Trunk Provider or Gateway Make/Model

Trunk provider is AAPT in Australia

• Has the Firewall Checker passed: YES / NO

Yes

• Are custom Phone Templates being used: YES / NO

No custom templates being used.

I get the same message when trying to call an internal extension.

 

[JohnS_3CX]

Please proceed to factory reset the base and the handset.

Once done, provision it again as per our guide here: https://www.3cx.com/sip-phones/yealink-dect-w52p/

Make sure that your FXS section entry for the base contains the correct information (especially the SBC IP)