a Tropo script to learn SIP and SIP headers: on incoming call, speak the username of the calling SIP address; on outgoing call, speaks a basic text

sip-headers.js

// New incoming call
if (currentCall) {
  answer();

  say("Welcome to Tropo SIP demo");
  wait(500);

  say("Let's guess your username !");
  wait(500);

  // Extract username from the "From" header:  XXXXX <sip:username@sip2sip.info> 
  if (currentCall.getHeader("From")) {
    var from= currentCall.getHeader("From").match(/\<sip\:(.*)\@(.*)>/);
    if (from[1]) {
      say("Found it! Hello " + from[1]);
      wait(500);
      say("<speak>which spells as <say-as interpret-as='characters'>" + from[1] + "</say-as></speak>");
    }
    else {
      say("Sorry, could not infer your username");
    }
  }
  else {
    log("no SIP From header found ?!");
    say("Sorry, could not infer your username");
  }
  wait(500);

  say("Hope we'll see you soon on DevNet: Cisco's Developer Program");
  wait(500);

  hangup();
}

// script launched from the Tropo Token URL
// please either specifiy a sipaddress, a sip2sip username or a phonenumber if in US
else {
  if (typeof sipaddress !== 'undefined') {
    call("sip:" + sipaddress, { network: "SIP", headers: { "x-nickname":"Tropo scripting"}} );
  }
  else {
    if (typeof sip2sip !== 'undefined') {
      call("sip:" + sip2sip + "@sip2sip.info", { network: "SIP", headers: { "x-nickname":"Tropo scripting"}} );
    }
    else {
      if (typeof phonenumber !== 'undefined') {
        call (phonenumber);
      }
      else {
        log("bad usage, no valid parameter found");
      }
    }
  }
  wait(1000);
  
  say("This is an outgoing call from Tropo");
  wait(500);
  
  say ("Bye Bye dear Tropo developer");
  wait(500);
  
  hangup();
}