So I have not added any payment options to Twilio and I am still in a trial mode
I have not had any luck with the text messages
But I was able to make a call

So, I’ve got a couple of questions.
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Is it only the text message function that will not work on trial, or from your experience did the calls not work as well?
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What is the TwiML File URL? There is no documentation on it and it is automatically populated. Will this need to be something that is changed when not on a trial account?
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When I want to enable users to call each other, would I simply have the Twilio phone for my account be the ‘from’ number and have the user receiving the call phone number be the ‘to’ number? My goal is to let one user call another without sharing their phone numbers on the site or seeing the phone number on the caller ID.
UPDATE
I am now able to send the SMS as well
The Status Callback URL was not necessary and subsequent tests without it worked still
The only thing I changed in the Twilio account was I updated my GeoPermissions to include the country of my phone number that is registered and verified by Twilio
https://www.twilio.com/console/voice/calls/geo-permissions/low-risk
I can only assume that is what enabled me to use it in trial mode. The other thing too is that it doesn’t make a difference if the numbers have the + in front or not…both ways works now.
One thing that is kind of bothering me though is I am not seeing the messages or phone calls in my Twilio account Usage section.