ropo_auto_attendant_rev1.php

<?php

// User defined constants.
define("COUCH_DB_USER", "");
define("COUCH_DB_PASSWORD", "");
define("COUCH_DB_NAME_LOGS", "call_logs/");
define("COUCH_DB_NAME_EXT", "call_settings/");
define("COUCH_DB_DESIGN_DOCUMENT_NAME", "");
define("COUCH_DB_SHOW_FUNCTION_NAME", "");

// Base URL for accessing Couch DB instance on CloudAnt.
define("COUCH_DB_BASE_URL", "http://%USER%:%PASSWORD%@%USER%.my_couchdb_host.com:5984/");

// Function to lookup phone number by extension.
function getPhoneNumberByExtension(&$ch, $baseURL, $ext) {
	
	$fullURL = $baseURL.COUCH_DB_NAME_EXT.$ext;
	curl_setopt($ch, CURLOPT_URL, $fullURL);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
	$output = curl_exec($ch);

	// HTTP response on a GET should be '200' for success, 400 class response on error.
	if (curl_getinfo($ch, CURLINFO_HTTP_CODE) != '200') {
	 		return NULL;
	}
	return $output;
		 
}

// Function to log call record
function logCallRecord(&$ch, $baseURL, $callLog) {

	$fullURL = $baseURL.COUCH_DB_NAME_LOGS;
	curl_setopt($ch, CURLOPT_URL, $fullURL);
	curl_setopt($ch, CURLOPT_POST, true);
	curl_setopt($ch, CURLOPT_POSTFIELDS, $callLog);				 
	curl_exec($ch);
			 
	// HTTP response on POST should be '201' (created) if successful, 400 class on error.
	if (curl_getinfo($ch, CURLINFO_HTTP_CODE) != '201') {
			return false;
	}
	return true;
}
												 
// A CURL handle that will be used to connect to our CouchDB instance.
$ch = curl_init();

// Create the base URL that will be used to connect to our CouchDB instance
$baseURL = str_replace(array('%USER%', '%PASSWORD%'), array(COUCH_DB_USER, COUCH_DB_PASSWORD), COUCH_DB_BASE_URL);

// Start the call.
answer(30);
prompt("Hello, welcome to my sample cloud telephone application.", array("bargein" => false));

// Prompt the caller for the extension they want to call.
$event = prompt("Please select an extension.", array("choices" => "[4 DIGITS]", "choiceMode" => "dtmf", "repeat" => "3", "timeout" => "5"));

if($event->name == 'choice') {

  	_log("*** User selected ".$event->value." ***");

	// Get the number to transfer to based on the extension selected.
  	$calledPartyInfo = getPhoneNumberByExtension(&$ch, $baseURL, $event->value);
	if(!is_null($calledPartyInfo)) {
  
	  _log("*** Extension information for ".$event->value." successfully retrieved from CouchDB. ***");
	  
	  // Decode the JSON response from CouchDB.
	  $extensionDetails = json_decode($calledPartyInfo, true);
	  
	  // Transfer the call.
	  prompt("Please hold while your call is transferred to ".$extensionDetails["first_name"]." ".$extensionDetails["last_name"].", ".$extensionDetails["title"]);
	  $tran = transfer("tel:+".$extensionDetails["phone"], 
	  		array("answerOnMedia" => false,
	              "callerID"      => $currentCall->callerID,
	              "timeout"       => 60,
	              "method"        => "bridged",
	              "choices"       => "1,2,3,4,5,6,7,8,9,0,*,#",
	              "playvalue"	  => $extensionDetails["ring_tone"],
	  			  "playrepeat"	  => 10,
	              "onSuccess"     => create_function('$event', '_log("*** Caller Transfered to:  '. $event->value->calledId.');'),
	              "onError"       => create_function('$event', '_log("*** Transfer error ***");'),
	              "onTimeout"     => create_function('$event', '_log("*** Transfer timeout ***");'),
	              "onCallFailure" => create_function('$event', '_log("*** Transfer failed ***");')
				));
	}
	
	// If the user selected an invalid extension, just hang up. This can obviously be tailored to make it more user friendly.
	else {
		prompt("That was not a valid extension.", array("bargein" => false));
		hangup();
	}
}
// Log the call record when transfer is over.
$callLog = json_encode(array("sesion_id" => $currentCall->getHeader("Call-ID"), "number_called" => $extensionDetails["phone"], "caller_id" => $currentCall->callerID, "call_timestamp" => time()));
if (logCallRecord(&$ch, $baseURL, $callLog)) {
	 _log("*** Call record successfuly logged. ***");
}
else {
	_log("*** ERROR: Could not log call record. ***");
}

// End the call.
curl_close($ch);
prompt("The call is now over. Goodbye.", array("bargein" => false));
hangup();

?>