I'm trying to do something pretty simple that is straight from the Twilio blog at https://www.twilio.com/blog/2009/05/dialing-multiple-numbers-simultaneously-with-twilio.html
Namely, this:
<?xml version=“1.0” encoding=“UTF-8”?>
<Response>
<Dial action=“/handleDialStatus.php” method=“GET”>
<Number>877-555-1212</Number>
<Number>877-999-1234</Number>
<Number>877-123-4567</Number>
</Dial>
</Response>
But it's returning 'Invalid TwiML'.
Any ideas?