public function voice($number = '', $initial_text = '')
{
$this->set_output_mode(MY_Controller::OUTPUT_NORMAL);
$session = new Session();
$phone_number = $session->getParameters('phone_number');
$message = $session->getParameters('message');
$tropo = new Tropo();
$tropo->call("sip:{$phone_number}@shims.starhub.net.sg");
$tropo->wait(1000);
$tropo->say($message);
$caller = $session->getFrom();
$called = $session->getTo();
$tropo->say('Your number is ' . $caller['id']);
//$tropo->say('This is via '.$called['channel']);
$tropo->ask('Press 1 to hangup or 2 to continue', array('choices' => "1,2", 'name' => 'digit', 'timeout' => 60));
$tropo->on(array('event' => 'continue', 'next' => 'voice_continue'));
$tropo->RenderJson();
}
