The previous link seems to be removed from my post, please try to use this link (modify the hxxps):
hxxps://yl-us-dmfile.yealinkops.com/firmware/acabd68ce4ee47c69068dbb54310f884/1657268749987/T31(T30,T30P,T31G,T31P,T33P,T33G)-124.86.0.112.rom
Hi oneroit,
We are facing similar issue on the T33G phones, have deployed 19 units of them and all of them are having the same issue.
Have used Pingplotter to ping to a few T33G on the network and can see there's ping loss happening throughout the day.
It seems the T33G with hardware version 2...