api - Cloud service for outbound call messaging -

i integrate service as. apart of our product signin call user give them code.

i can generate codes mp3 without issue don't know of service can place call , play mp3 user.

any thoughts or feedback on sort of app need?

highly recommend twilio cloud communication, can used send code via sms or phone call.

using php example, here how -

text message

<?php // twilio php library http://twilio.com/docs/libraries require "services/twilio.php";  //random code $code = rand(pow(10, 6-1), pow(10, 6)-1);  // set twilio account settings $accountsid = "acxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"; $authtoken = "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy";  //initial twilio instance $client = new services_twilio($accountsid, $authtoken);  //recipient number - must +15555555555 format $recipient = '+18882224444'; $caller_id = '+18008885555'; //twilio phone number  //send message $sms = $client->account->sms_messages->create(     $caller_id,     $recipient,     "your activation code is: $code" ); 

phone call

<?php // twilio php library http://twilio.com/docs/libraries require "services/twilio.php";  // set twilio account settings $accountsid = "acxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"; $authtoken = "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy";  //initial twilio instance $client = new services_twilio($accountsid, $authtoken); $call = $client->account->calls->create(     '9991231234', // valid twilio number     '8881231234', // call number      //when call connected, code @ url executed     '/say-code.php' ); 

say-code.php

<?php // twilio php library http://twilio.com/docs/libraries require "services/twilio.php"; // random code $code = rand(pow(10, 6-1), pow(10, 6)-1);  // generate twiml - xml twilio // execute when caller connected , use text-to-speech // play activation code. // may use mp3 so: // $response->play('http://example.com/code.mp3'); $response = new services_twilio_twiml(); $response->say("your activation code $code"); print $response; 

there lot of other helper libraries out there accomplish twilio. hope helps!