VoIP Software

11 tools available

VoIP Software moves business phone calls to the internet. A new employee gets a working extension in minutes — just download an app. No wiring, no desk phone, no IT request. International calls cost almost nothing.

Voicemail transcription, call forwarding, and video meetings come built in. The entire phone system travels with each person, whether they're at a desk or working from the couch.

For remote teams and growing companies, VoIP is usually the single biggest telecom cost cut they'll ever make. Once the switch happens, the old copper phone line starts to feel like a fax machine — which is to say, ancient.

1

Mumble

Free open-source low-latency voice chat for gaming, communities, and self-hosted audio

Free Free to use
2

FreePBX

Open-source PBX management platform built on Asterisk for self-hosted business phone systems

Free Free to use
3

Avaya

Enterprise-grade unified communications and contact center platform for large organizations

Free Free to use
4

Linphone

Open-source SIP softphone for secure voice and video communication

Free Free to use
5

WhatsApp

Global messaging app for secure chats, calls, groups, and media sharing

Free Free to use
6

Jitsi

Open-source, privacy-focused video conferencing for secure online meetings

Free Free to use
7

Zoom Phone

Cloud-based VoIP phone system with AI features built into Zoom Workplace

Free Free to use
8

voip.ms

Pay-as-you-go cloud PBX and SIP trunking for businesses and power users

Freemium Free plan available
9

TeamSpeak

Low-latency voice communication platform with free client, self-hosted server licensing, and private voice channels

Free Free to use
10

Wildix

AI-powered unified communications platform focused on sales-driven business growth

Free Free to use
11

Asterisk

Free open-source telephony framework for building PBX, VoIP gateways, IVR, and custom communications apps

Free Free to use