#visudo
User_Alias NETUSERS=foo1,foo2,foo3 #use ur username(s) here
Cmnd_Alias CONNECTPROG=/usr/bin/wvdial
NETUSERS ALL=NOPASSWD:CONNECTPROG
now save the file
and all the users in NETUSERS will be able to connect without furnishing
the root password.
#sudo wvdial
see also : man visudo,man sudoers,man sudo
HTH
P.S.
Please be careful with metaphors.