Prompt types

in any element prompt is there. during creating prompt one option is there variable and in variable two types of variables are there. what is the mean of Audio File variable and how to use it.

There are basically two types of prompts: normal text and audio file. When normal text is used, the gateway automatically converts it to audio using text-to-speech engine. If it is audio file, the gateway simply plays the audio file.

When a veriable is used, the gateway may not know what type the item is referring to. For example, if you use a database operation to get an audio file, and save the audio file path in a variable, then you must specify the type of the variable.

For normal text items, you may also further specify the prompt format:

For example, if you have a text item “100″, the text-to-speech will say it as “one hundred”, but if you specify it as “digits”, then it will say it as “one zero zero”; and if you specify it as “DTMF”, then the system will send DTMF tones 100 (as if you pressed key 1, key 0, and key 0).