Best Ivoz Provider Alternatives & Competitors

FreePBX is a web-based open source GUI that controls and manages Asterisk (PBX).

Open Source

Hosted PBX with CRM integration and mobile apps

FlexiQuiz is a powerful online test generator that enables you to create engaging online quizzes, tests, or exams in minutes. Choose from 100's of features to create a customized quiz that meets your objectives for business, education, or fun.

Try for free freemium $25.0 / Monthly (Essentials plan)

An open source telephony switching and private branch exchange service for Linux.

Open Source

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.

FusionPBX is an open source FreeSWITCH GUI.

Open Source

Kamailio® (successor of former OpenSER and SER) is an open source SIP server released under...

The most advanced interface for managing Asterisk PBX with Multitenant and Realtime capabilities

Thirdlane PBX - VoIP Phone System and Unified Communications Solution for Small Business to Enterprise. An easily tailored, scalable white-label communications platform perfect for managed service providers, UCaaS specialists, and esteemed resellers.

paid Free Trial

VitalPBX is a full-feature PBX (phone system) based on Linux and Asterisk.

RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies

Open Source freemium $19.99 / Monthly (All-in-One Phone, Team Messaging, and Video Conferencing.)

Elastix is an open source Unified Communications Server software that brings together IP PBX...

Incredible PBX is a secure and feature-rich implementation of the Asterisk® PBX.

Work locally, grow globally

Open Source paid Free Trial $25.0 / Monthly