Open Source SIP Phone With Red5 And Flex3 « NPR ‘ S Weblogs

Source : http://www.igniterealtime.org/community/blogs/

ignite/2008/05/05/flashbased-audio-in-openfire-part-ii

Just over a year ago, I blogged about using audio and video with openfire. At that time, I implemented a SIP based softphone in Adobe Flash using AsteriskWin32 and VAC4. My argument for an open-source, standards based, no-install web-based softphone as a requirement for Web 2.0 voice applications is still valid today and the emergence of Ribbit, TringMe, Zingaya

List of SIP software

The following lists of SIP software documents software applications which use SIP as a voice over IP (VoIP) protocol.

OpenStep

OpenStep is an object-oriented application programming interface (API) specification for an object-oriented operating system that uses any modern operating system as its core, principally developed by NeXT with Sun Microsystems. OPENSTEP (all capitalized) is a specific implementation of the OpenStep API, developed by NeXT. While originally built on a Mach-based Unix (such as the core of NEXTSTEP), versions of OPENSTEP were available for Solaris and Windows NT as well. The software libraries that shipped with OPENSTEP are a superset of the original OpenStep specification.

The OpenStep API was created as the result of a 1993 collaboration between NeXT and Sun Microsystems, allowing this cut-down version of NeXT's NEXTSTEP operating system object layers to be run on Sun's Solaris operating system (more specifically, Solaris on SPARC-based hardware). Most of the OpenStep effort was to strip away those portions of NEXTSTEP that depended on Mach or NeXT-specific hardware being present. This resulted in a smaller system that consisted primarily of Display PostScript, the Objective-C runtime and compilers, and the majority of the NEXTSTEP Objective-C libraries. Not included was the basic operating system, or the display system.

OpenMP

The OpenMP (Open Multi-Processing) is an application programming interface (API) that supports multi-platform shared memory multiprocessing programming in C/C++ and Fortran on many architectures, including Unix and Microsoft Windows platforms. It consists of a set of compiler directives, library routines, and environment variables that influence run-time behavior.

Jointly defined by a group of major computer hardware and software vendors, OpenMP is a portable, scalable model that gives programmers a simple and flexible interface for developing parallel applications for platforms ranging from the desktop to the supercomputer.

An application built with the hybrid model of parallel programming can run on a computer cluster using both OpenMP and Message Passing Interface (MPI).