Cannot upload ringtone via web interface T46G

[CloudConnect]

Firmware 28.72.188.4
T46G
When trying to upload a new ringtone via the web interface through Settings->Preference and then under Upload Ringtone, I get the following results:
when using any filename other then Ring1...Ring8, I get "Error:The destination folder does not exist!". When I try to upload a file with the Name Ring1.wav ... Ring8.wav, then I get "Exist the ring!" in a pop-up window.
The file is 250kB, 8kHz, 16 bits wav. I did not try to auto provision, I assume that would lead to the same result.
What is going wrong here?

[danielsan85]

We were having this issue as well. Updating to the latest firmware removed the error, however, the ring tone doesn't work (just silence).

Has anyone else had issues with this?

[anonymous1712222627012]

Hello All,

Pay attention that the ringtone must be '.wav'. Additionally, if the name is the same with ring1, ring2,... of course, it will pop-up a window.

And there is some restrictions about the ringtone, such as the size, the frequency. For more details, you can refer to the following doc for help:
ringtone guide

Thanks.