Making a telephone call in Java

Hi i have a java application but now i need to know how to make it
connect to the sound card if thats what i have to do.
But i need to know how to make a phone call to a phone through my computer
Can anyone help please?

JustinMuir wrote:
Hi i have a java application but now i need to know how to make it
connect to the sound card if thats what i have to do.
But i need to know how to make a phone call to a phone through my computer
Can anyone help please?Hi...Use java's sound API....
see the following link for more detail about java sound API
[http://java.sun.com/j2se/1.5.0/docs/guide/sound/programmer_guide/chapter1.html|http://java.sun.com/j2se/1.5.0/docs/guide/sound/programmer_guide/chapter1.html]
[http://java.sun.com/j2se/1.5.0/docs/guide/sound/programmer_guide/contents.html|http://java.sun.com/j2se/1.5.0/docs/guide/sound/programmer_guide/contents.html]
The following program will help you how to capture voice through java and how to play it..
[http://java.sun.com/products/java-media/sound/samples/JavaSoundDemo.zip|http://java.sun.com/products/java-media/sound/samples/JavaSoundDemo.zip]
Dhaval Yoganandi.
Edited by: Dhaval.Yoganandi on 25 Sep, 2008 6:06 PM
Edited by: Dhaval.Yoganandi on 25 Sep, 2008 6:24 PM

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JustinMuir wrote:
Hi i have a java application but now i need to know how to make it
connect to the sound card if thats what i have to do.
But i need to know how to make a phone call to a phone through my computer
Can anyone help please?Hi...Use java's sound API....
see the following link for more detail about java sound API
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Since you didn't use code-formatting tags ([ code ] and [ /code ] without the spaces) it's kinda hard to look at it. But I'm sure it DID execute much more than just the return statement - maybe you're not closing a file or db connection, or maybe you're seeing a cached page, so it actually isn't executing ANYTHING on the server (is your browser set to never check for newer pages so it (almost) always returns from cache, for example?)

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}

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class class-default
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gateway
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pvc 1/40
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local-alerting
timeouts call-disconnect 0
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timeouts call-disconnect 0
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dial-peer voice 2 pots
destination-pattern 5258222
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port 3
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destination-pattern 5258444
port 4
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Playing a WAVE file after making a phone call.

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I'm trying to play a wav file after making a phone call. I was able to make the call. But I get an exception when i try to paly a wav file..
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               return;
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     FloatControl pan = (FloatControl) auline.getControl(FloatControl.Type.PAN);
               if (curPosition == Position.RIGHT)
                    pan.setValue(1.0f);
               else if (curPosition == Position.LEFT)
                    pan.setValue(-1.0f);
          auline.start();
          int nBytesRead = 0;
          byte[] abData = new byte[EXTERNAL_BUFFER_SIZE];
          try {
               while (nBytesRead != -1) {
          nBytesRead = audioInputStream.read(abData, 0, abData.length);
          if (nBytesRead >= 0)
               auline.write(abData, 0, nBytesRead);
          } catch (IOException e) {
               e.printStackTrace();
               return;
          } finally {
               auline.drain();
               auline.close();
     }I inserted
new PlayWave("greeting.wav").start();In to a method an called this method in the program where i send commands to the modem.
These are my modem commands
send("ATZ");
    expect("OK");
//Enable voice mode
    send("AT+FCLASS=8");
    expect("OK");
//Dial the number
    send("ATDT"+number);
    expect("OK");
//Choose encoding method //This is the default
    send("AT+VSM=140,8000,0,0");
    expect("OK");
// start sending audio data
    send("AT+VTX");
    expect("OK");
PlayAudio();
send("ATH");The size of my audio file is 100 kb.I'm using a 56 K intel externel voice modem connected to a serial port.I wonder if it's because the buffer is too big. If anyone tried this and succeded please correct me.
Thankyou in advance
goodnews

Hi goodnews!
Did I understand well? Can You record the speech? This is what I want!
Can you help me and send me sample code?
This would be a big help for me!
Thank You!
rflair

Internet connection only when making a phone call

I own a Powerbook G4, I connect to the internet wireless via aiport. I can connect only when making a phone call, my ISP is virgin.net. I've changed the micro-filter. Can any one help me on this problem.
Thanks
Lee

Thanks for the usefull information, I've contacted BT they are my telephone provider here in the UK, and they did a line test, not a mechanical test as by an engineer, and said the line is OK. My in-comming & out-going calls are fine, but with interference on the line. How did you get past this problem?

Normal to not hear my end of a telephone call?

Hello all,
I use an Etymotic hf2 for telephone calls on my 3GS. I can hear the other party, and they can hear me just fine, but I cannot hear my own side of the conversation in the earphones. It just feels like dead air. Is this normal? Is there some setting on the iPhone I can use so that my side of a telephone conversation can be heard on the headphones?

Yes, I'm sure that's true. I can have the sort of "feedback" I find helpful by just using the iPhone without a headset when making telephone calls. It seems it's only with the headset I use that I get the "dead air" effect.
I think the "feedback" effect may only be noticed when it's absent. Speaking into a telephone that is not connected will make the "dead air" effect noticeable.
Rather like talking into a brick.
None-the-less, I can easily avoid the effect by simply not using the headset when making telephone calls.

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