System is Norstar 3.0 w/7310 phone sets handling 4 lines.

I'm trying to give line 4 a different sounding ring than lines 1-3. I'm using it for a separate company than that of lines 1-3 and have assigned a separate Auto Attendant and Table to line 4.

Cannot find instructions for distinct line rings in my manuals. Any help is appreciated.

[This message has been edited by Tim_M (edited April 28, 2005).]