Asterisk is a complete PBX and telephony toolkit in software. It runs on Linux, *BSD, MacOSX, and Solaris. It provides all of the features you would expect from a PBX and more as it enables developers to build customized voice applications of many types. Asterisk does voice over IP in many
... [More] protocols, and can interoperate with almost all standards-based telephony equipment using relatively inexpensive hardware. [Less]
Asterisk-Java, a free Java library for Asterisk PBX integration, consists of a set of Java classes that allow you to easily build Java applications that interact with an Asterisk PBX Server.
Asterisk-Java supports both interfaces that Asterisk provides for this scenario: The FastAGI protocol and
... [More] the Manager API.
The FastAGI implementation supports all commands currently available from Asterisk.
The Manager API implementation supports receiving events from the Asterisk server (e.g. call progess, registered peers, channel state) and sending actions to Asterisk (e.g. originate call, agent login/logoff, start/stop voice recording). [Less]
blue.box is an open-source configuration and management software enabling the use of the FreeSWITCH and Asterisk switching libraries. It supports multi-tenancy, skinning and is completely open-source. It can be used with database and file replication to scale up to thousands of registered devices
... [More] and simultaneous phone calls. It can operate in the cloud or on the premise.
blue.box development is hosted and funded by the 2600hz project. http://www.2600hz.org [Less]
A2Billing complements the Asterisk project by enabling the following features on both TDM and VoIP calls:
Traditional calling card services
Credit limit on both pre-paid and post-paid customers
Callback services
Residential VoIP services
Wholesale minutes termination
Monthly/weekly free
... [More] calling packages
Invoicing
Paypal, Moneybookers and Authorize.net integration.
The project is easy to use and is frequently seen on FreePBX installations to bring accountability to small offices' phone usage.
For ITSP and traditional telco wholesale usage it has been seen to easily scale to millions of minutes per month, with 100,000s rates across many trunks. Work is in progress to further enhance A2Billing's scalability and availability. [Less]
Yet Another Telephony Engine is a next-generation telephony engine; while currently focused on Voice over Internet Protocol (VoIP) and PSTN, its power lies in its ability to be easily extended. Voice, video, data and instant messaging can all be unified under Yate's flexible routing engine
... [More], maximizing communications efficiency and minimizing infrastructure costs for businesses. [Less]
Elastix is an appliance software that integrates the best tools available for Asterisk-based PBXs into a easy-to-use interface. It also adds its own set of utilities to make it the best software package available for open source telephony.
IAXmodem is a software modem written in C that uses an IAX channel (commonly provided by an Asterisk PBX system) instead of a traditional phone line and uses a DSP library instead of DSP hardware chipsets.
IAXmodem was originally conceived to function as a fax modem usable with HylaFAX.
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