I’m running FreePBX 2.5.2.
I haven’t changed anything is 6 months, but all of the sudden I can no longer transfer calls.
During a call, I enter *2, my transfer code. I head “transfer”. I enter the extension and get an error “that’s not a valid extension.”
The log shows that when I entered the extension number it logged
WARNING res_features.c: Did not read data.
I see posts on the internet going back 5 years about this error, but I couldn’t find any responses or helpful information.
The phone was an Aastra 57i.