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7921 PushToTalk button

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7921 PushToTalk button
Answer
6/11/08 11:54 PM
How do I use the 7921 PushToTalk button as a IP Phone Service SoftKeyItem?
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Re: 7921 PushToTalk button
Answer
6/11/08 11:54 PM as a reply to David Nguyen.
<KeyItem>
<Key>PushToTalk</Key>
<URL>RTPMTx:Stop</URL>
<URLDown>RTPMTx:239.1.2.3:20480</URLDown>
</KeyItem>

With the above sample XML snippet, when the corresponding IP Phone XML service is invoked, the PTT button available with wireless 7921 IP Phone device will act as per below:

When the button is pressed it will start transmitting and once released, transmission is stopped.
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Re: 7921 PushToTalk button
Answer
11/12/08 7:57 AM as a reply to David Nguyen.
Hi David,

Do you mean that when the button is pressed, the "RTPMTx:239.1.2.3:20480" command is executed. And when the button is released the "RTPMTx:Stop" command is executed?

I have another question.

If we want to do Push To Talk feature, when no button is pressed, the phone should listen to a multicast channel.

So we should use the following codes:

<!-- it is a snippet of another.jsp -->
<KeyItem>
<Key>PushToTalk</Key>
<URL>http://ip:port/another.jsp</URL>
<URLDown>RTPMTx:239.1.2.3:20480</URLDown>
</KeyItem>

where another jsp would execute "RTPMTx:Stop" and "RTPMRx" when first loaded.

Is it true?

Thanks!!

Tony

Edited by: mvtonytjo on Nov 11, 2008 9:15 PM
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