Yealink W73 - Call Failed and Global Error

[crenegar]

3CX Free and hosted by 3CX. Using a Fanvil X4U V2 as a router phone. All was fine since the install a few weeks ago but now the W73 handset on a W70B cannot call out. It can still receive calls but all outgoing, even to voicemail or the X4U fail with Global Error. Everything shows green in the console and we've rebooted the W70B and done a battery pull on the W73.

 

[JohnS_3CX]

Somebody probably messed with the line assignments in the base.

If you can't find and fix them, simply set it up again and it will take the defaults:

1. Delete handset from the base
2. Factory reset the base and the handset
3. Reprovision the base
4. Re-assign the handset

 

[crenegar]

There is only one line assigned to this base and we have already unassigned and reassigned the handset, didn't help. I guess factory reset both is next but this is not cool with a customer who is about an hour away. Should be able to do it with a Quick Assist session as he is cooperative but if someone had to drive that would be huge waste of unbillable time. I've also ordered a spare W70B and hand set in case it's a hardware issue - will report back, thanks for the input John.

 

[crenegar]

There is only one line assigned to this base and we have already unassigned and reassigned the handset, didn't help. I guess factory reset both is next but this is not cool with a customer who is about an hour away. Should be able to do it with a Quick Assist session as he is cooperative but if someone had to drive that would be huge waste of unbillable time. I've also ordered a spare W70B and hand set in case it's a hardware issue - will report back, thanks for the input John.

 

[JohnS_3CX]

Also ensure please that the firmware used on the base and handset is the one Yealink has certified for 3CX:

https://www.yealink.com/en/solution-detail/resource-for-3cx

Make an internal call or to voicemail or to echo test *777 to confirm.

 

[crenegar]

The base def is, system was just deployed a few weeks ago and I just double checked. No firmware for the W73 is listed on that page. This is the only "Free' install we maintain and we've seen firsthand how not updating the firmware first essentially bricks the system for 24 hours by blacklisting the IP (this is horrible!) with no way to white list.
Can not make any calls from the handset, not internal, not voicemail...I don't think he tried Echo, will ask him.