I knew you'd ask why.
Unfortunately, it's about creating some compatibility with old POTS callerid tech. I have an application running on a PC that is being fed callerid information from a callerid box. The PC sees, for example, callerid information for lines 1 through 8.
I'm simulating this in Asterisk, assigning calls to "lines" and sending the callerid info (simulating the callerid box) to the PC app. The only piece missing is simulating that on the phone - i.e. so the when the user picks up a ringing D40, they can match the call to line 1-8 on the PC screen.
My thought was to change the line label to "LINE1" or "LINE2", etc., for the duration of that call.
However, I could just as easily have my app display "LINE1" on the screen. Having it up there on the line label seemed more natural.
One other semi-related question. Is there a way to change the font size of the callerid information that is automatically displayed by the D40?
Thanks! I appreciate the quick reply and your help.