[Asterisk-java-users] Excetpion when trying use the channel of live api

[jeff l. <ll...@gm...>]

Hey guys,

  I'm not quite familiar with live api and a little confused by some concept
in it.  What does the channel stand for(same as fastagi)? Why do I get
NoSuchChannelException when trying to use the channel when
NewAsteriskChannel is fired.Some codes:

    public void onNewAsteriskChannel(AsteriskChannel channel){
        System.out.println("Caller ID: " + channel.getCallerId());
        System.out.println ("Name: " + channel.getName());

        try {

//            channel.startMonitoring("/tmp/mlu/live/test.wav");       I do
find two audio files,so this one not failed
//            channel.redirect("extensions-shanghai-sip","628",0);  Failed
              channel.playDtmf("1");
    Failed
        } catch (ManagerCommunicationException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (NoSuchChannelException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
  Logs:
org.asteriskjava.live.NoSuchChannelException: Channel 'SIP/mlu-087c3870' is
not
available: Invalid/unknown command
        at org.asteriskjava.live.internal.AsteriskChannelImpl.playDtmf(AsteriskC
hannelImpl.java:648)
        at test.HelloLive.onNewAsteriskChannel(HelloLive.java:106)
        at
org.asteriskjava.live.internal.AsteriskServerImpl.fireNewAsteriskChan
nel(AsteriskServerImpl.java:730)
        at org.asteriskjava.live.internal.ChannelManager.addNewChannel
(ChannelMa
nager.java:198)
        at
org.asteriskjava.live.internal.ChannelManager.handleNewChannelEvent(C
hannelManager.java:372)
        at org.asteriskjava.live.internal.AsteriskServerImpl.onManagerEvent
(Aste
riskServerImpl.java:838)
        at org.asteriskjava.manager.ManagerEventListenerProxy$1.run
(ManagerEvent
ListenerProxy.java:77)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask
(ThreadPoolExec
utor.java:650)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run
(ThreadPoolExecutor
.java:675)
        at java.lang.Thread.run( Thread.java:595)

  Any suggestions?Thanks in advance.

-- 
Regards,
Jeff