asterisk users - Apr 2010 - Hangup after 1 second of ringing ?

Hi All,

does the Asterisk's 'Dial' command have some hooks to execute
commands as soon as the 'ringing' signal is received ?

For example: can a call be dropped 1 second after the called party's phone
started to ring ?

I'm using version 1.4.


Thanks for supporting,
have a nice day.
Mike