Description: FreePBX is an open source web-based GUI that controls and manages Asterisk, an open source communication server. It enables managing extensions, voicemail, call routing, IVRs, and other PBX features through a web browser.
Type: software
Pricing: Open Source
Description: MicroSIP is an open source SIP softphone and instant messenger for making VoIP calls and sending IMs over the Internet. It supports standard SIP accounts from various providers and has features like audio/video calling, chat, presence, and more.
Type: software
Pricing: Open Source