Hi, I am working on an application using PHP and Asterisk, the application should perform some tasks such as subscription, un-subscription, adding items (tones) to play list, removing items from play list...<br><br>Most of the above requirements are developed using PHP.<br><br>My question is, how can I dial a number (destination) and play back ground music (tones) during the call, i.e., once the destination picks up? Also, once the call is generated, how can I receive DTMF digits pressed by the caller (source)?<br><br>Thanks.<br><p> 
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