Asterisk is an open source toolkit for building communications applications, now owned and supported by Sangoma (acquired with Digium in 2018). Most Asterisk-based systems and solutions require additional components (e.g. IP-phones, VoIP gateways or telephony interface cards, and other hardware), and expertise.
Most Commonly Comparedto Cisco VoIP PBX (discontinued)
Best Cisco VoIP PBX (discontinued) Alternatives for Small Businesses
Sangoma's Communications Platform, including the former Switchvox and Business Voice+ from Star2Star, is a UCaaS system, allowing users to simplify communications down to one solution delivered on-premise, on cloud, or via hybrid deployment.
Higher Rated Features
Popular Integrations
Cyprus based company 3CX offers an IP PBX phone system.
Higher Rated Features
Popular Integrations
Best Cisco VoIP PBX (discontinued) Alternatives for Medium-sized Companies
Asterisk is an open source toolkit for building communications applications, now owned and supported by Sangoma (acquired with Digium in 2018). Most Asterisk-based systems and solutions require additional components (e.g. IP-phones, VoIP gateways or telephony interface cards, and other hardware), and expertise.
Higher Rated Features
Popular Integrations
Cyprus based company 3CX offers an IP PBX phone system.
Higher Rated Features
Popular Integrations
Best Cisco VoIP PBX (discontinued) Alternatives for Enterprises
Asterisk is an open source toolkit for building communications applications, now owned and supported by Sangoma (acquired with Digium in 2018). Most Asterisk-based systems and solutions require additional components (e.g. IP-phones, VoIP gateways or telephony interface cards, and other hardware), and expertise.