t26p don't transfer

[Yealink Support]

Hi Malafaia,
The transfer is the same between T20P and T26P.
Last time, you said in your client side, T20P works well, while T26P doesn't work? And both of them have V70 firmware? (9.70.0.140 and 6.70.0.140)
Do T20p and T26p in the same network environment? If they are in the same environment, and the same V70 firmware, and also after reset to factory default, there shouldn't be have problem on T26p while T20p do not have problem.
If they are not in the same environment, maybe it will be the network problem.