VoiceXML::Client is a library that provides Perl programs with the ability to act as a user agent that fetches Voice Extensible Markup Language (VoiceXML) documents, parses them, and then executes the instructions therein by playing prompts and collecting user DTMF input/voice recordings through a handle to some type of telephone or other device interface. VoiceXML::Client's focus is on the client side. The XML documents are generated by a distinct process of your choice, unrelated to the library.
BioCluster is a peer-to-peer clustering platform for Asterisk, the open source PBX, which allows Asterisk to be used as a full carrier-grade telephony solution. It is meant to be installed on several machines together with Asterisk, turning them into a VoIP cluster. While the BioCluster peer-to-peer protocol was initially designed to cater to Asterisk-based clustering solutions, the BioCluster framework is capable of being extended to support various forms of normally unclustered devices or software packages.
Mediastreamer is a portable C library that allows you to create and run audio and video streams. It is designed for any kind of voice over IP applications. It features RTP connectivity, audio codecs (Speex, iLBC, G711, GSM, and AMR), video codecs (MPEG4, H263, H264, and Theora), sound card I/O, wav file streaming, webcam video capture, echo-cancellation, conferencing, parametric equalization, and various other utilities. It has a modular design that makes it extensible through plugins. This is the media-streaming component of linphone, a GPL SIP video phone.
libss7 is a userspace library for providing SS7 protocol services to applications. It has a working MTP2, MTP3, and ISUP for ITU and ANSI style SS7, but was written in a manner that will easily allow support for additional national specific variants in the future. For a working reference implementation, see the various link test programs, as well as the Asterisk Open Source PBX.
Ruby Asterisk Gateway Interface (RAGI) is a framework for bridging the Ruby on Rails Web application server environment and Asterisk, the open-source PBX. RAGI eases the development of interactive automated telephony applications such as IVR, call routing, automated call center, and extended IP-PBX functionality by leveraging the productivity of the Ruby on Rails framework. RAGI simplifies the process of creating rich telephony and Web applications with a single common Web application framework, object model, and database backend.
BtFree is a library for creating client-server applications that communicate over a Bluetooth connection. You can use it in your MIDP application or in a Java application that uses an implementation of JSR82. It allows you to create applications with client-server interaction easily, avoiding the need to know JSR82 and the problems related.