blf problem

for some time, it happens that on phones (yealink t27 and t 23) the blf function disappears.
I'll explain.
for example, a system with s20 and 7 yealink t27, worked regularly for 2 months, and now the keys configured as blf do not display the status. to resume I have to restart the phones.
this had never happened to me until 6 months ago


Please sign in to leave a comment.