Dialpad

It is a cross-platform instant messaging and voice over IP application provided as freeware for the Microsoft Windows, macOS, Linux, Android and iOS platforms.

Skype’s text, voice and video make it simple to share experiences with the people that matter to you, wherever they are.

Zoom unifies cloud video conferencing, simple online meetings, and cross platform group chat into one easy-to-use platform. Our solution offers the best video, audio, and screen-sharing experience across Zoom Rooms, Windows, Mac, iOS, Android, and H.323/SIP room systems.

Discord is a modern free voice & text chat app for groups of gamers. Our resilient Erlang backend running on the cloud has built in DDoS protection with automatic server failover.

It is the business-oriented version of Google's Hangouts platform and is suitable for businesses of all sizes. It allows users to dial in phone numbers to access meetings, thus enabling users with slow internet connection to call in.

It is a cross-platform mobile messaging app for iPhone, BlackBerry, Android, Windows Phone and Nokia. It allows users to send text messages and voice messages, make voice and video calls, and share images, documents, user locations, and other media.

It is a free, open project that enables web browsers with Real-Time Communications (RTC) capabilities via simple JavaScript APIs. The WebRTC components have been optimized to best serve this purpose.

Jitsi (acquired by 8x8) is a set of open-source projects that allows you to easily build and deploy secure videoconferencing solutions. At the heart of Jitsi are Jitsi Videobridge and Jitsi Meet, which let you have conferences on the internet, while other projects in the community enable other features such as audio, dial-in, recording, and simulcasting.

Collaborate with colleagues across your organization, or halfway across the planet. Meet online and share files, information, and expertise. Collaborate from wherever you are with Webex mobile apps for IPhone, iPad, Android, or Blackberry. If you can get online, you can work together.

With one click, anyone can join your online meeting, from any device. You can choose to meet right away, or schedule from Outlook for later. The meeting URL is personalized just for you.

Its aproprietary software for remote control, desktop sharing, online meetings, web conferencing and file transfer between computers.

Since RingCentral is cloud based, you enjoy the freedom to connect and manage multiple locations, devices and workers within your cloud phone system. You can easily customize users, departments, and call handling rules. No matter where you, or the users, are. You only need a high-speed Internet connection and your phone system is ready to work lightning fast, anytime and anyplace. There’s no PBX hardware.

It is a communication platform which includes messaging, video chat, and VOIP features.

Aircall is an app that you can install and setup in a few minutes. It lets you buy one or several phone numbers across the world, add teammates to your dashboard, and place & receive calls on your existing devices. Everything is managed inside the Aircall app.

Message contacts, start free video or voice calls, and hop on a conversation with one person or a group.

It is a set of user experience development tools that unify design, prototyping and implementation of high quality, native apps for iOS and Android.

More secure, more flexible, and completely free video conferencing. Go ahead, video chat with the whole team. It is a fully encrypted, 100% open source video conferencing solution that you can use all day, every day, for free — with no account needed.

Make virtual spaces to bring people together and connect authentically. It combines video calling with fun features in a custom 2-D world, making it more spontaneous and enjoyable to get together for work, life, or play.

It is an online meeting, desktop sharing, and video conferencing software package that enables the user to meet with other computer users, customers, clients or colleagues via the Internet in real time.

It is an open standards IP PBX that offers complete Unified Communications, out of the box. Suitable for any business size or industry it can accommodate to your every need; from mobility and status to advanced contact center features and more, at a fraction of the cost.

Amazon Chime is a communications service that transforms online meetings with a secure, easy-to-use application that you can trust. Amazon Chime works seamlessly across your devices so that you can stay connected. You can use Amazon Chime for online meetings, video conferencing, calls, chat, and to share content, both inside and outside your organization.

It is a graphical programming interface that provides designers access to parametric modeling and data-driven customized workflows for building information modeling (BIM). It can run as an addin for Autodesk Revit and Autodesk Vasari, with the ability to manage Revit project files and family definitions, or it can run as a standalone program. It allows users to control complex geometry, construct parametric relationships, manage data, and automate tasks.

It provides free conference calling. Simple, visual, and free to use, you can easily set up and join free conference calls without PINS, see who is on the call, and use powerful conferencing features.

It is a voice-based communication platform that recreates an office-like environment where you can jump in and out of conversations with your team. It’s super easy to use: Login with Slack. Tap to talk. See the team on 1 screen. Record, transcribe, and assign action items. Connect like you’re in the same room.

It is an online meeting, desktop sharing, and video conferencing software package that enables the user to meet with other computer users, customers, clients or colleagues via the Internet in real time.

It is a cross-platform messaging app. Privacy isn’t an optional mode – it’s just the way that Signal works. Every message, every call, every time.

It is the modern webinar solution for all customer training sessions, demo webinars and employee onboarding. Everything works inside the browser, in real-time, without any download.

Mediasoup and its client side libraries provide a super low level API. They are intended to enable different use cases and scenarios, without any constraint or assumption. Some of these use cases are: Group video chat applications, One-to-many (or few-to-many) broadcasting applications in real-time, and RTP streaming.

Manage projects, assign tasks, share files, and communicate with your team in a real time workspace.

Quick, next-gen video calls. It combines inventions in audio technology & a fresh perspective on video UI. Introducing major inventions in signal processing, AI-based background noise filtering, voice proximity detection, and UX.

It is a free software for universal communication which respects freedoms and privacy of its users. Its main goal is to provide a communication framework and end-user applications to make audio or video calls, send text messages and make generic data transfers. It makes this possible via multiple paradigms: a modern decentralized approach using a DHT to find peers or classical centralized SIP as a soft-phone.

Open source video conferencing apps for iOS, Android and web. Deploy your own video collaboration app in five minutes or less. The purpose of these open source apps is to provide a more comprehensive demonstration of Programmable Video features.

Sound more professional and stay connected with Grasshopper, the Virtual Phone System designed for entrepreneurs. Grasshopper works just like a traditional phone system, but requires no hardware to purchase or software to install.

It allows its users to set up video conferences with up to 200 speakers (video+audio) or up to 1000 speakers (audio). It’s unique option of customization video quality is perfectly tailored for launching conferences during the periods of network overload.

Stay connected, organized, and on task with an easy-to-use phone solution that fits organizations of any size.

It is a product to have highly interactive events over the web. Here are a couple of things it does for you: Register Users for a highly interactive webcast. Automatically sends reminders.

Fuze is the highest quality most reliable way to meet, share, and get work done. Fuze supports 12 HD video conference streams and up to 250 participants with clear HD voice. Share high resolution interactive content with powerful co-annotation controls.

Hubl.in is a free and open source video conference solution built with love and designed with ethics in mind. It's the best way to initiate a communication anywhere with anybody and brings real time conversation to the next level. Hubl.in allows free communication without additional plugins.

It is a customizable meeting interface built on top of Zoom, reimagined for collaboration, and inclusive conversations. Same Zoom links, same people, same meetings - but now so much better.

It is an open-source alternative to Discord. It is a user-first chat platform built with modern web technologies.

SendHub is a simple, fast, web and mobile communication tool that provides businesses, and organizations, with a call and messaging solution to reach small and large groups of people.

Ring your mobile phone, computer, and desk phone at the same time. Answer calls and switch seamlessly between devices. Use your personal device with a business phone number so you're always reachable.

All-in-one phone system for startups and small businesses. It adds a work phone number to your existing devices. No need to carry two phones or extra SIM cards.

It is an Intelligent Phone System for run companies by managing call and forward to anyone. It is very helpful to build a relationship with clients

Meet with clients, co-workers & teams. No software or signups needed. Works on all web browsers. Best of all, it's free.

Tauria empowers your virtual team with a fully private workspace for collaboration. End-to-End encrypted video calls for groups of up to 100 people, 1-on-1 calls, screen sharing, group chats, file sharing, and open/closed team discussions

It is an Internet-based phone network that enables clients to make and receive calls from any device connected to the Internet. It enables you to setup your business telephone system without the heavy hardware and wiring expenses.

Create unique conference rooms on demand, without having to reuse the same IDs. Self-hosted free option works for most, but commercial licensing is available for more features and support.

It offers a solution where you’d get a business phone number with lots of great features without having a full office setup, extra cell phone plan, and without paying high prices for the communication system.

It is a free open source software compatible to discord. It is a selfhostable Chat, Voice and Video platform similar to Slack, Rocket.chat and Discord-compatible.