Thank you guys for quick reply.
But, when I use this program 81, its not working at all for ext 213 (port 013). I found same problem with some other extensions too (i am using appropreate ports).
Ext 213 is stays quite even for Door.
Do I need to turn light on for Door and Intercom key too?
I have 8 POTS lines connected to line port 1 to 8, Door is Line 9.
Thanks,
RD