[Freeswitch-users] How do I notify FreeSwitch that a phone has been answered to play audio or TTS

[mszlazak at aol.com]

If I originate an outgoing call from FreeSwitch and want to tts a phrase or play an audio once the call has been answered (i.e, someone answered their cell phone or I got their voicemail) then how do I detect that.

Otherwise, I've tried the following but it relies in getting the timing right which won't always work or looping the tts phrase over and over.

var s;
while (tryCalling()) {}
s.hangup();
exit();

function tryCalling() {
??? s = new Session("sofia/gateway/spa3102/12223334444 at 10.0.0.5:5061");
??? s.waitForAnswer(10000);
??? 
??? if (s.cause == "USER_BUSY") { 
??? ?? ?return true;
??? }

??? if (s.ready()) {
??? ?? ?s.sleep(10000);
??? ?? ?s.speak("cepstral","Callie","Hello from FreeSwitch");
??? }
??? return false;
}


Another way is to keep replaying the tts phrase by replacing

? if (s.ready()) {

??? ?? ?s.sleep(10000);

??? ?? ?s.speak("cepstral","Callie","Hello from FreeSwitch");

??? }

with something like:

 while (s.ready()) {

??? ?? ?s.speak("cepstral","Callie","Hello from FreeSwitch");

??? }


Thanks. Mark.
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