Compare A2Billing vs. Asterisk in 2025

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Description

A2Billing serves as a class 4 and class 5 softswitch featuring inline billing capabilities, aimed at delivering VoIP services for residential, business, and wholesale markets, along with support for calling cards, call-back services, and telephone number resale, all underpinned by our expert support. This free and open source software, tailored for Asterisk, facilitates comprehensive telecom customer management through various interfaces, including those for administrators, agents, customers, and online signups, while offering adaptable inline rating and billing for calls and services in real-time, ensuring a seamless experience. Additionally, its robust features and support structure make it a popular choice for telecom providers looking to enhance their offerings.

Description

Asterisk is a versatile open-source framework designed for creating various communication applications. It transforms a standard computer into a robust communications server. Asterisk serves as the backbone for IP PBX systems, VoIP gateways, conference servers, and numerous other tailored solutions. Its users range from small enterprises to large corporations, call centers, telecom carriers, and government bodies across the globe. Available at no cost, Asterisk thrives under the sponsorship of Sangoma. Currently, over a million Asterisk-based communication systems operate in more than 170 nations. Remarkably, nearly all companies listed in the Fortune 1000 utilize Asterisk in some capacity. Most frequently implemented by system integrators and developers, Asterisk can serve as the foundation for a comprehensive business phone system or can be employed to augment an existing setup or connect disparate systems. Whether you're interested in crafting a personalized system with Asterisk or purchasing an efficient, affordable turnkey solution, explore the options available to determine the best fit for your needs. With its flexibility and wide-ranging applications, Asterisk continues to evolve, ensuring it meets the demands of modern communication.