thetris

a variable is a value that can be shared through vectors and could contain numberous of criteria. Some of them are: stepcount(amount of steps in a vector) time of day, day of year, collect.

Say you want a caller follow a certain maximum of vector steps you can use stepcount. You can use the variable day of year for routing based on a specific day. (Looks a bit like holiday table)
Another variable is collect. With this one you can place collected digits into a digit buffer and use them for further routing(and digit string operations)

There is also a so called MOD10 variable. This is used in a credit card check vector. There is an algorithm that can provide validation for a credit card number.

If you use a variable with the set function you can change the variable for example by phone. In that way you would for example activate a holiday announcement for lots of vectors in one time.

The goal for variables is to minimize the amount of vectors used and to centralize en simplify common shared values in vectors.