GNU Bayonne: telephony application server of the GNU project
GNU Bayonne is a middleware telephony server that can be used to create and deploy script driven telephony application services. These services interact with users over the public telephone network. GNU Bayonne can be used to create carrier applications like Voice Mail and calling card systems, as well as enterprise applications such as unified messaging. It can be used to provide voice response for e-commerce systems and has been used in this role in various e-gov projects. GNU Bayonne can also be used to telephony enable existing scripting languages such as perl and python.