Lesson 2. Variable

The first 3 steps of the sample application is listed below:

1. The sample IVR application answers a call
    
2. Plays a welcome message, asking the caller to enter password
    
3. If the password is incorrect, go back to step 2. If the caller has tried more than 3 times, log the caller ID and hang up the call

Lesson 1 implemented half of the step 3. This lesson finishes step 3.

Video: Use Variables

Variable

A variable is used to keep track of the number of password attempts. A variable is a symbolic representation used to denote a quantity or expression. The quantity of a variable is usually called the value of a variable. The value normally changes during the execution of an IVR application. In IVR Studio, a variable is presented as ${name}.

This lesson covers the following topics:

• Create a new variable
• Update variable value
• Use variable
• Log caller ID
• Test Lesson 2