Scenario: at 2PM, I have a message (ex: your money has been transfered) I want to deliver to 20 phone numbers via an outgoing call not SMS.
the Calls should happen at exactly 2PM with a 1 or 2 minutes of error margin.
What it is the best aproach to implement this scenario?
do I need 20 Twilio phone numbers or less/one to make simultaneous call? if yes, is there a best practice on how to manage a pool of available Phone numbers.
NS: I am new to Twilio