I have 20 Cisco SPA504G phones with Attendant consoles.
I set up BLFs for all of them.
After a long struggle, i've got them to work.
But they are unresponsive and unreliable.
When an incoming call to all phones is placed, all phones ring but the flashing red lights are random, very few times they all flash, most of the times only half of them flash.
This is for all sorts of calls. How can we improve the reliability of the BLF?
Here is a screenshot of our config: