Send the following on WhatsApp
Continue to ChatSMS using Twilio Rest API in ASP.NET Core https://elanderson.net/2016/03/sms-using-twilio-rest-api-in-asp-net-core/
SMS using Twilio Rest API in ASP.NET Core https://elanderson.net/2016/03/sms-using-twilio-rest-api-in-asp-net-core/