Based on our record, Asterisk seems to be more popular. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on Reddit, HackerNews and some other platforms. They can help you identify which product is more popular and what people think of it.
Perhaps asterisk / FreePBSX or similar would suite your goals? asterisk.org. Bit of a learning curve, but there is lots of documentation and examples too. - Source: Reddit / 7 months ago
Asterisk? Foss telephoniserver, been around for a long time so mature and solid https://asterisk.org. - Source: Reddit / 11 months ago
These are all just sound files, and from what I can recall I'd bet at least 97% are the standard Asterisk (open source PBX software) set (probably core perhaps plus some extras en + es for some). -- It's certainly Alison's voice, and and all the same jokes are there (e.g. zombies, lotso-monkeys). - Source: Reddit / over 1 year ago
FreeSWITCH - FreeSWITCH is an open-source media application designed to support popular protools such as SIP and WebRTC and provides a platform to develop voice and video applications.
freepbx - FreePBX is a web-based open source GUI that controls and manages Asterisk (PBX).
Kamailio - Kamailio® (successor of former OpenSER and SER) is an open source SIP server released under...
VitalPBX - VitalPBX is a full-feature PBX (phone system) based on Linux and Asterisk.
3CX Phone System - 3CXPhone is a free VoIP phone available for Windows, iPhone or any Android based smart phone such...
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies