Minimum requirements for Firmware Updates

[Kevin Burns]

I am upgrading the phone system from version 14 to 15. Does it matter what firmware Yealink phones starts a or will 3CX upgrade any older firmware instance to its newest version.

Also related,
I had updated a Yealink T23G phone to its newest firmware which is 44.80.0.70 and in 3CX it says that that firmware is unsupported. It doesn't allow me to upgrade the firmware from within the management console.

For example,
I have a T46G with firmware at version 28.80.0.60 and a T48G at version 35.73.0.40. Will I have to update these firmware's to a newer version before 3cx is able to recognize them and run its own firmware upgrade or will 3CX recognize them and upgrade them without going into the IP of each phone?

 

[YiannisH_3CX]

Hello @Kevin Burns

Please note that the management console will not allow you to downgrade the firmware as your phone has a higher firmware that the supported one which is 44.81.0.60/61 for the Yealink T23g. You should be able to upgrade the rest of the phones with no issues through the management console.

 

[Kevin Burns]

Hello @Kevin Burns

Please note that the management console will not allow you to downgrade the firmware as your phone has a higher firmware that the supported one which is 44.81.0.60/61 for the Yealink T23g. You should be able to upgrade the rest of the phones with no issues through the management console.

Thanks so much!
Just to make sure I 100% understand. Every older firmware will be recognized and is upgradable? For at least Yealink phones? correct?

 

[cobaltit]

@Kevin Burns

Just do the upgrade. One of two things will happen. Either it will allow you to upgrade via the console or it won't. If it won't, you'll have to upgrade the firmware manually which is what you would have to do if the answer comes back as 'you have to be on xxx firmware before you upgrade'. So you aren't really saving yourself anything but following this line of questioning. But yes, to re-iterate what YiannisH_3CX already said:

You should be able to upgrade the rest of the phones with no issues through the management console