GDS3710 not ringing Desk Phones (Yealink T21P_e2

[rbalderaz80]

I have recently installed a GDS3710 and have it set to ring certain extensions when the "call" button is pressed. The GDS3710 successfully calls the extensions, but only the 3CX Mobile Application rings for the extensions. The Desk Phones do not ring. Anyone come across this and know the fix?

3CX Phone System Version 18.0 Update 8 (Build 939)
Yealink T21P_e2 firmware 52.84.0.140

Thanks everyone for your help!

 

[Alejandro_3CX]

Hi @rbalderaz80 could you please check that the GSD3710 is using the supported firmware

Are you sending video to the phones too? if you disable the video on the doorphone do you have the same result?

 

[rbalderaz80]

The firmware that was shipped and is loaded on the device is 1.0.11.20

I looked through all of the settings on the GDS3710 and I do not see an option to turn off the video

 

[TheodorosG_3CX]

The latest tested and supported firmware though is 1.0.7.24
Try to update to this version first and check the behavior.

 

[rbalderaz80]

The latest tested and supported firmware though is 1.0.7.24
Try to update to this version first and check the behavior.

I wasn't able to get the firmware downgraded, but we did test it out with a couple Yealink T33G's and T53W's and it worked with no issues. So I'm guessing it's an issue with the outdated phones, firmware, etc... Thank you for your replies.

 

[TheodorosG_3CX]

Yes, the device should be using the latest 3CX Supported Firmware. If you are not able to manually install the firmware you will need to contact vendor for further clarification.