Hi, i have a little problem.
extension 8122 have a call in course attended.
extension 8xxx or pstn make a new call to 8122.
8122 show in display the new call instead send a busy tone and reject the new call.
users of the new call always ear a ringing tone and think 8122 dont want answer the new call.
i dont know how to solve this problem, and if its a busy tone problem or another configuration in the genera settings.
all the phone are Yealink T21, T40G, W52 and W56.
i will thanks a lot your help.