Help ... Need callback program sources for Sun 3.x O/S

[Greg White]

Help, I need a program that will initiate a callback for a Sun running
3.x O/S. 

Any help would be greatly appreciated.
Greg White
..!{ihnp4,ptsfa,pyramid,rutgers,dual}!lll-lcc.llnl.gov!white
(The usual disclaimers)

P.S. This is my first posting, so please be patient with me