Show which FXO Line is Called with UC540 and SP-50x

[kmmehlkmmehl]

is this possible to show? so my customer can see for example line 3 is called (which is the private line) and take the call....?

Thanks!

[Steven DiStefano · Accepted solution]

You can assign a CO Line button to the phone for that line. When it's called it turns red and you should be able to pick it up. You should also be able to press it when it's off to seize the line and place a call