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OpenSIPS (former OpenSER) is an GPL implementation of a multi-functionality SIP Server that targets to deliver a high-level technical solution (performance, security and quality) to be used in professional SIP server platforms.
IMPORTANT: this is no longer the main hosting for the project. This was moved on GITHUB - https://github.com/OpenSIPS/opensips
...Generating Pick up tune
4. Generating Ring tone.
5. Handling telephone dial.
This project is forked from https://savannah.nongnu.org/projects/usbb2k-api/ and https://sourceforge.net/projects/kb2kskype/
KAMAILIO (OpenSER) - robust, secure and scalable Open Source (GPL) SIP (RFC3261) server implementation with large features set (over 90 extension modules). As of May 2009, source code is hosted by GIT repository at http://sip-router.org
An open source implementation of SS7 Message Transfer Part (MTP). This is a fork of DIGIUM LIBSS7. This project will focus on Distributed MTP, MTP in the cloud, MTP over TCP, MTP over SCTP, MTP over TLS, MTP API, ...etc.
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OpenAL mixer aims to provide a multiplatform API built on top of OpenAL to get/set volume values (including support for capture devices) and list, select and mute input and output lines.
Java version of Dialogic's SwitchKit API. This API is actually a more "Java Centric" API, with listeners, filters, and a very extensible and modular framework that finally uses JNI to access the native libraries provided by Dialogic.
J8051 is an API for communication between a 8051 microcontroller and a cell phone using Java ME, Bluetooth and "C" language callback functions, providing a easy way for embed systems developers build a communication between.
MOR is Billing System for Asterisk PBX. It supports postpaid/prepaid billing with LCR and Fail-Over. Realtime Asterisk management using web interface. Reporting and advanced rating. Based on fast C application for Asterisk and Ruby On Rails GUI.
Yeastar: Business Phone System and Unified Communications
Go beyond just a PBX with all communications integrated as one.
User-friendly, optimized, and scalable, the Yeastar P-Series Phone System redefines business connectivity by bringing together calling, meetings, omnichannel messaging, and integrations in one simple platform—removing the limitations of distance, platforms, and systems.
This an open source project for Paliha P750 and similar corded phones http://www.paliha.ru (only Russian language). The original project "Teleport-Paliha" was written for Windows OS, but I want the same on my Linux!
Tool (C) to split the WURFL XML mobile browser database into individual device files with symlinks (stubs for NTFS) to reduce access time and server load. Includes a simple PHP library/API as an example how to access the data and an example phtml file.
Skypegate is a userspace daemon that connects Skype with a USB-B2K type telbox device, allowing Skype to be used with a normal telephone. It uses D-Bus 0.23 to communicate with Skype and usbb2k-api as the USB-B2K driver.
The LA/OpenBP billing platform provides high performance/volume, industry independent billing functionality. It is designed for easy integration into complex environments such as those found in the telecommunication, utility and finance industries.
SMSec is a free , open source, GPLed implementation of two-factor authentication via SMS (Short Message Service). It uses SMSD to "talk" to GSM modems, provides a flexible XMLRPC web-service for web-developers integrate SMSec into their web-apps.
KAlcatel allows you to manage messages, calls, contacts, todos and the calendar in your Alcatel (tm) One Touch 50x and 70x mobile. This project is not maintained anymore, use Wammu instead (http://wammu.eu/)
PyTele implements a Python extension for the Linux Telephony API. The first objective, already completed, is to provide Python commands to allow an answering machine or IVR (Interactive Voice Response) application to be implemented in Python.
Open Source SIP Back to Back User Agent) and Billing system. Has an Embeded TCL interpreter making session control and session mediation limitless in flexibility. Useful for: Routing Engine, Calling Cards, SBC, Peering, Wholesale and more!
This project is aimed primarily at users of the Icom R20 Communications Receiver and it's predecessors (R3, R5, R10). The intent is to provide ability to extend the capabilities of the radio, and provide an API to programmers interested in it.