[Asterisk-Users] Receptionist Phone

[Asterisk]

>I have a customer interested in an * system, however she wants to
ensure that the receptionist phone will display 
>who is on the phone and who is not.  It is an office of 10 people, and
there are 12 PRI channels available.

You could look at the Snom 220 with its expanded call board.
http://www.snom.com/snom220_en.php

The LEDs on the SNOM phone's keys work very well with *.