[Asterisk-Users] Line Presence:

[Robert Webb]

On Thu, 14 Apr 2005 11:42:34 -0700
  Sean Kennedy <skennedy at tpno-co.org> wrote:
> Hi all
> 
> With the recent thread on line presence in asterisk, can 
>anybody tell me if there is a phone out there that 
>supports this?  Say I have 20 extensions:  Is there any 
>way, hardware based, for me to see the activity on those 
>lines.  And for a bonus, is there any way for me to 
>interact with them?
> 
> Thank you.
> 
> Sean


Is this what you are looking for???

http://www.grandstream.com/y-gxp2000.htm