This documentation is for CallXML 2, which has been superceded by CallXML 3. The CallXML 2 language is not being updated any longer. CallXML 3, however, has many new features and is actively being enhanced. If you're writing a new CallXML application, you should use CallXML 3. Click here for the CallXML 3.0 documentation.
Introduction to Token-Initiated Calls
Arguably, one of the cooler things about the Voxeo platform is that we have put in place a testing environment where developers may construct and test HTTP initiated phone applications. At its simplest, a token application involves creating a call by the click of a button on a webpage, resulting in the outbound call to the destination that you specify. At its most complex, one can construct a dynamic application that schedules a series of calls to be placed automatically, which is the most common methodology of making a 'notification/broadcast' style application.
How To Get Started
In order to get on the road to token enlightenment, you will want to convince the Voxeo Support team that you are worthy of a dialing token, and outbound dialing rights. In order to get access to these features, check our how-to link that details the process:
Failing all else, you can also bribe the support staff with 2 pounds of cooked bacon, they eat that stuff like it is going out of style.
A Few Words about Token Blasting
More advanced coders will eventually want to set up complex token initiated broadcast applications. When doing so, keep in mind that it is always best practice to use a singular token to place however many calls that you need to send out. You do not, repeat, do not need multiple tokens to token blast, as this defeats the load balancing and failover systems that we have in place on our network. A simple loop structure that repeatedly hits your token initiation string is the best methodology for such an application.
Start URL's
Note that there is a significant difference in the primary start URLs for a token initiated call depending on whether you are working on the Community site or on the Tech Preview site. Also note that the URLs are case sensitive, so be careful when typing them in. If you are using a CallXML token on the Community site, then your start URL should be:
http://session.voxeo.net/CallXML.start
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