asterisk users - Mar 2005 - Manager API calling DUNDiLookup

I am attempting to call DundiLookup from the manager API.

Action: Command
Command: dundilookup 401

I get back "no such command".

I have CVS as of 3/31/05.

What am I missing so I can have the manager API return to me the
dundi lookup information?

Thanks,

jerry