Asterisk is an open source framework for building communications applications. Asterisk powers IP PBX systems, VoIP gateways, conference servers, and is used by small businesses, large businesses, call centers, carriers and government agencies, worldwide. Asterisk is free and open source. Asterisk provides a platform for voice, video and text communications, using a variety of protocols including SIP, H.323, MGCP, IAX2, SCCP, and Skinny. Asterisk supports a wide range of telephony features, such as conference calling, direct inward dialing, call queuing, automated call distribution, interactive voice response, and trunking. Asterisk is used by many organizations, including Cisco, Digium, and Sangoma, to provide VoIP services. Asterisk is also used by many service providers, such as VoIPtalk, to provide VoIP services to their customers. Asterisk is a popular choice for VoIP systems because it is free, open source, and has a wide range of features. Asterisk is also easy to install and configure.
There are many companies that provide Asterisk services, but only a few that are certified. A certified Asterisk service provides support, training, and consulting for Asterisk-based systems. These services are typically more expensive than non-certified services, but they offer a higher level of support.
Asterisk services are becoming more and more popular as a way to save money on business telephone costs. There are many companies that offer Asterisk services, and it is important to do your research to find a reputable company. Once you find a company you can trust, be sure to ask about their certification process to ensure that you are getting the best possible service.