[asterisk-users] caller id ring tones for Asterisk Phone

[Jeronimo Romero]

I'm going to be rolling out asterisk at a small office and one requested
feature was the ability to have a phone that can be configured so that
ringtones can be configured according to the callerid of the caller. 
Does anyone have Asterisk experience with such a phone? Any suggestions
would be greatly appreciated. 

Thanks in advance!!!