Solved Yealink t46U remote phone not fully provisioning

[dwasniak]

Using Version 20 release 7. I created a new extension and added a new T46U phone as a remote router phone. Booted up the phone offsite and it received the provision file on the phone, changed the password, setup the BLF's but shows No Service. The event log shows it sent the provision file successfully but nothing after that. I updated the firmware on the phone before adding it. The firewall checker was successful, and the IP address is not being blocked. I have deleted the phone from the user and re-created then factory reset the phone with the same result. Any other suggestions.

 

[paulodagraca]

Hello @dwasniak ,

You may have tested one, some or all of these thing, but just want to mention them as being inportant:

1) Time: NTP client running on 3CX server, meaning time is set correct in the OS ? Including timezone, summertime settings.
2) Certificate of 3CX FQDN, do you use own of 3CX provided ?
3) Does the 3CX server also have an IPv6 address? Does the offsite have an internet connection with IPv6 ?
4) Port 5090 TCP (if not changed), the firewall does test UDP not TCP, please check firewall at 3CX server side for TCP on open port *5090.

Let us know, if any of this did help or presented you with some idear on how to fix it.

Paulo

 

[dwasniak]

Thank you for your response. Please see below.

1. The time, time zone and set for daylight savings change on the 3CX windows computer is correct
2. 3CX provide FQDN
3. Both sides have ipv6 enabled
4. Both UDP and TCP objects in the firewall are open

 

[dwasniak]

I am assuming the connection Information should have values.

 

[paulodagraca]

Hello dwasniak,

The Local IP, Public IP and Version will be available when the SBC / Routerphone does connect.
No values means, there has never been a connection yet... not just now, but never yet.

Paulo

 

[RoryJ]

Did you put 3CX firmware on the phone before provisioning?

 

[paulodagraca]

Hello @dwasniak ,

You wrote the 3CX is on a Windows machine?
If yes, than you have 2 firewalls:
-WIndows OS firewall
-Network/internet firewall
Both okay?

Did you try to use a smartphone with the 3CX APP on this 3CX server, does that work?

Paulo

 

[dwasniak]

Yes. Firmware was download from yealink and installedbefore anything else.

 

[dwasniak]

local firewall is off. All local yealink phones work. The App also works off network. I tried another new yealink phone t54w and it does the same thing.

 

[RoryJ]

Firmware was download from yealink

Then there's your problem.

Which version is it? You need to grab 185.87.0.16 from here https://downloads-global.3cx.com/do...s/firmwareupdates/yealink/T7X-185.87.0.16.rom

 

[fxbastler]

Yes. Firmware was download from yealink

Which one?

You should always use the latest 3CX firmware:
https://www.3cx.com/docs/phone-firmwares/

 

[fxbastler]

Which version is it? You need to grab 185.87.0.16 from here https://downloads-global.3cx.com/do...s/firmwareupdates/yealink/T7X-185.87.0.16.rom

pls not the T7x firmware, its a T46U

 

[RoryJ]

pls not the T7x firmware, its a T46U

Sorry @dwasniak , I misread.

T46U should be 108.87.0.16 https://downloads-global.3cx.com/do.../firmwareupdates/yealink/T4XU-108.87.0.16.rom

 

[JohnS_3CX]

3. Both sides have ipv6 enabled

No IPv6, you need IPv4 for router phones to work correctly.

Yes. Firmware was download from yealink and installedbefore anything else.

The firmware must specifically be the one we provide here: https://www.3cx.com/docs/phone-firmwares/

When you are done upgrading, factory reset the phone again. Do not skip this step.


If you still have trouble, please follow our guide and do everything here from the beginning:
https://www.3cx.com/sip-phones/yealink-t4-series/

 

[dwasniak]

No IPv6, you need IPv4 for router phones to work correctly.



The firmware must specifically be the one we provide here: https://www.3cx.com/docs/phone-firmwares/

When you are done upgrading, factory reset the phone again. Do not skip this step.


If you still have trouble, please follow our guide and do everything here from the beginning:
https://www.3cx.com/sip-phones/yealink-t4-series/

Go to know, don't download the firmware from the Yealink site. The firmware from the 3CX download worked for the T46U. It had the .15 firmware and the 3CX site had the .16 firmware download. I deleted the phone from 3CX, upgraded to the firmware from the 3CX site and factory reset. Add back to 3CX and viola!

 

[JohnS_3CX]

Thanks for confirming, glad to hear it was resolved. Always follow our guide and use the 3CX provided firmware, as this firmware has been built and tested by Yealink to work on 3CX as intended.

The official 3CX-certified firmware built by Yealink can be found here, not on their main support website.

https://www.3cx.com/docs/phone-firmwares/
or
https://www.yealink.com/en/solution-detail/resource-for-3cx