Today VoiceXML is the standard scripting language for rendering web pages over the telephone. Developing costs of an interactive phone application have changed dramatically with the new markup language. Voice Application Development with Voice XML works from an application-centric approach, detailing how a programmer proficient in standard web application development tools and techniques can build voice-based applications and interfaces.

Concepts
A single VoiceXML document, or a set of documents, called an application, forms a conversational finite state machine. The user can only be in one state, or dialog, at a time. Each dialog contains information about the transition to the next dialog. The transitions are specified by URI’s. The execution of an application ends when a dialog does not specify a successor, or if it has an element that explicitly exits the application. When we have tried to build our own application we have found out a few things. VoiceXML is a great tool to create voice-enabled applications that are going to be used over the phone.

Online Ticket & Enquiry

An Interactive Voice Response System (IVRS) developed for Road Transport Companies to provide its passengers / callers with information round the clock, seven days a week.

Voice Application Benefits

Voice applications offer several benefits that include the following:

* Voice applications have increased usability over traditional IVR applications, as they use a natural dialog that is appropriate for the application. They offer a level of service that is greater than IVR applications and potentially equal to a live operator without putting users on hold.
* Voice applications are economical, as they don’t require infrastructure set up which is the case with traditional IVR applications. Voice applications are typically hosted with a hosting provider such as BeVocal.
* The ubiquitous presence of the telephone enables almost anyone, anywhere to access web content and services.
* A hands-free interaction through voice commands offers convenience and safety to wireless phone users.
* Information can be retrieved directly with a spoken command. This eliminates sorting through different levels of menus that are common to traditional IVR applications. Voice commands are far more convenient and intuitive to use than punching in letters and numbers on the tiny keypad of a wireless phone. Wireless applications based on Wireless Application Protocol (WAP) are at a disadvantage due to this restriction.

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