asterisk users - Aug 2006 - Has anybody a usefull example for the DIAL-option G(context|exten|prio)

HI lIst,

i'm a little confused about the G option of dial.
which sense hast it to send calle and caller to an context/extension and 
dont bridge the calls,

is ther a way to bridge the two parties???

Has anybody a usefull example for this option?

Looking forward to your answers

KAI