Q:

Twiml getting callers number

In my app I want to enable User A to call a twilio number and then User B to receive a call from the twilio number and let both Users talk. 
When call button is pressed the twilio number is called.
Then the /hello function is executed. 
Xcode
NSString *callString = [NSString stringWithFormat:@"telprompt://TwilioNumber"];

 [[UIApplication sharedApplication] openURL:[NSURL URLWithString:callString]];

I put the twilio number in place of 'twilionumber' and I hardcoded a number in place of 'ToCallNumber'. 
Parse.com Cloud Code
////TWILIO
app.get('/hello', function(request, response) {
    var twiml = new twilio.TwimlResponse('');

    twiml.dial({callerId:'twilionumber'}, 'ToCallNumber'); //working

    response.type('text/xml');
    response.send(twiml.toString(''));
    });
    app.listen();

So far no problem. What I want is to change the ToCallNumber based on who is making the call. I have linked the users in a Parse Datatable. I need to get the caller's phonenumber in /hello function in order to call the correct user. 
In the console I see the callers phone number.  
Input: {"method"=>"GET", "url"=>"/hello?AccountSid=....... From=%2B"CAllersPhonenumber"&.....

I tried getting the From parameter by doing like request.params.From, From, twiml.From, twiml.params.From and other things maybe more than two hours.  Can someone explain how to get that From value please? 

A:

I finally found the answer. It is request.param not params.. 
Twilio $_REQUEST['From'] equivalent for node.js 
request.param('From');

