VoIP Software

32 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

Hubspot VOIP

HubSpot calling feature for CRM-connected sales and service conversations

Freemium Free plan available
2

smrtPhone.io

CRM-connected cloud phone system for real estate, sales, texting, dialing, and call tracking

Paid From $0/mo
3

Nextiva

All-in-one VoIP and AI-powered customer experience platform for modern businesses

Freemium Free plan available
4

Quo

AI-powered business phone system for startups and small teams

Freemium Free plan available
5

3CX

Flexible business VoIP phone system with self-hosted and AI-powered options

Freemium Free plan available
6

Zoiper

Cross-platform SIP softphone with secure voice, video, messaging, and AI features

Freemium Free plan available
7

Grasshopper

Simple virtual phone system for small businesses and solopreneurs

Freemium Free plan available
8

8×8

Enterprise-grade unified communications platform for voice, video, and contact centers

Freemium Free plan available
9

GoTo Connect

Unified cloud phone, messaging, and meeting solution for modern businesses

Freemium Free plan available
10

Mumble

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

Free Free to use
11

Coval VoIP Software

VOCAL Technologies VoIP software modules for embedded, secure, and specialized communications systems

Custom Price Contact for pricing
13

FreePBX

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

Free Free to use
14

Avaya

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

Free Free to use
15

Linphone

Open-source SIP softphone for secure voice and video communication

Free Free to use
16

Textfree

Free second phone number app for texting and calling

Freemium Free plan available
17

WhatsApp

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

Free Free to use
18

Jitsi

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

Free Free to use
19

Ooma

Affordable VoIP phone, internet, and security solutions for homes and businesses

Freemium Free plan available
20

VoIP Software

Flat-fee business VoIP software with unlimited calling and texting

Freemium Free plan available
21

Zoom Phone

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

Free Free to use
22

MicroSIP

Lightweight open-source SIP softphone for high-quality Windows VoIP calling

Freemium Free plan available
24

Google Voice

Free cloud-based phone number for calls, texts, and voicemail management

Freemium Free plan available