FANVIL X6U (Rev: B V2) provisionned but SIP REGISTER FAILED

[Mat Pel]

Hi, I am newbie on this subject. I managed to get the system operational on the 3CX app and SIP Provider. I can send and receive calls, my different users can receive calls on their cell phones, the automatic answering machine works too. Everything seems fine.

Why not plug in some Ip Phones then? I bought the Fanvil X6U, verified the version (B V2) and plugged the phone on a small TP link PoE Switch.
I provisionned the phone with the Mac Address and it seemed to work since the setup got through.

But I keep getting SIP Register Failed messages. If I hit the line with the setup, I get INVALID LINE.
And, most frustrating, after a while, my IP gets blacklisted at 3CX for 24 hours and then all testing process stops until tomorrow.

Any idea where to dig?

3CX Version, Web version?

• Server OS : 3CX SMB 10 18.0 Update 8 (Built 917)
• Is the 3CX Server Hosted and where? by 3CX
• IP Phone Make/Model/Firmware version, FANVIL X6U (Rev: B V2)
• Provisioning Method: Automatic by Mac Address
• Trunk Provider or VoIP Gateway Make/Model, CallCentric
• Has the Firewall Checker passed: NO (no firewall yet)
• Are custom Phone Templates being used: NOT YET (all Polycom SoundPoint IP450 unplugged)

 

[Charles_3CX]

The phone seems to be on the incorrect firmware version, causing the public IP to be backlisted.

Firstly, please see this guide for the correct firmware version that this IP phone needs to be using: https://www.3cx.com/docs/phone-firmwares/

Please remove the IP Phone from the extension and, factory reset it, update the firmware to the correct version before adding it back to the system.

 

[Mat Pel]

Resolved!
Thanks Charles. If I had your number, I would call you to show my appreciation...

Mat

 

[Charles_3CX]

No problem at all. You are most welcome. Glad to be of assistance.