There are many variations on building simple applications with Twilio that can be used with offline business to generate leads for them.

This lesson will show you how to build a simple application that will perform the following functions:

1) Greet the caller with your own personal message (i.e. NOT a robot voice)
2) Forward the number to an offline business (i.e. your client)
3) Record the call
4) Send you a text (SMS) message letting you know that a call has come in on that number

Follow the instructions and in 5 minutes you can build an application that can be used with an offline client. Be sure to point the Twilio number you use to the application URL! You will find the recordings for these calls in your Twilio account under Logs>>Recordings. After you get it set up, all you need to do is start generating calls with your ads, flyers, etc.

Let me know if you have any questions.