Best Free Telephony Software
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Compare the Top Free Telephony Software as of November 2025
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What is Free Telephony Software?
Telephony software is a type of communication technology that enables voice and video communication over telephone systems, computers, and the internet. These platforms are designed to manage, route, and track phone calls, messages, and multimedia communications within businesses or personal environments. Features of telephony software often include VoIP (Voice over Internet Protocol) support, call routing, interactive voice response (IVR), voicemail, call recording, and integration with customer relationship management (CRM) systems. Many telephony systems also include analytics tools for tracking call volumes, durations, and customer interactions. By improving communication efficiency and providing scalable solutions, telephony software is crucial for businesses looking to streamline their communication infrastructure. Compare and read user reviews of the best Free Telephony software currently available using the table below. This list is updated regularly.
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1
3CX
3CX
3CX is a software-based, open standards IP PBX that offers complete Unified Communications, out of the box. Suitable for any business size or industry 3CX can accommodate every need; from mobility and status to advanced contact center features and more, at a fraction of the cost. Ideal for companies working remotely, 3CX includes mobile apps, video conferencing and website live chat. Installation, management and maintenance of the PBX is so easy that you can effortlessly manage it yourself, whether on an appliance or server at your premise on Windows, Linux or in the cloud. Alternatively you can choose to have it hosted by 3CX for a completely hassle-free solution.Starting Price: Free for up to 10 users -
2
Sonetel
Sonetel
Phone Numbers Worldwide + Customer Chat + Team Communication, in a single Free App. Have your own local phone number in any city or country worldwide. Showing a local number to visitors at your web site increases trust and sales. You can get it for free if you also use our free chat function at your website. Otherwise prices start at $1.79/month. Incoming calls can be answered for free in our new apps or be forwarded anywhere worldwide at the cost of a local call. We believe that globalization and entrepreneurship are the key drivers for making this planet a better place. By empowering entrepreneurs in the most remote corners of the world, with a communication solutions that remove distance and levels the playing field, we hope to contribute to this progress. About 170,000 out of those that have signed up – across 170 countries – have also become paying customers.Starting Price: $0 -
3
Kixie PowerCall & SMS
Kixie
Kixie is a revenue engagement platform that helps teams connect faster, sell smarter, and scale efficiently with AI-driven automation and seamless CRM integration. ✔️ Outbound Sales: Increase connection rates by up to 400% with AI-powered Local Presence Dialing, Multi-Line PowerDialer, and Spam Risk Reduction. ✔️ Marketing: Automate calls and texts for instant follow-ups and personalized, scalable outreach. ✔️ Inbound Sales & CS: Streamline workflows with CRM-based call routing, shared SMS inboxes, and automated responses. ✔️ RevOps & Leadership: Optimize team performance with AI-powered call insights, live coaching, and real-time analytics. 🚀 Boost productivity and revenue with Kixie. Visit our website to get started for free today, no credit card required! -
4
WhatsApp
Meta
Simple. Secure. Reliable messaging. With WhatsApp, you'll get fast, simple, secure messaging and calling for free*, available on phones all over the world. WhatsApp Business is a free to download app that built with the small business owner in mind. Create a catalog to showcase your products and services. Connect with your customers easily by using tools to automate, sort and quickly respond to messages. WhatsApp can also help medium and large businesses provide customer support and deliver important notifications to customers. Learn more about WhatsApp Business API. Some of your most personal moments are shared on WhatsApp, which is why we built end-to-end encryption into the latest versions of our app. When end-to-end encrypted, your messages and calls are secured so only you and the person you're communicating with can read or listen to them, and nobody in between, not even WhatsApp. -
5
Zadarma
Zadarma
Powerful Cloud Telephony for Global Businesses Zadarma offers a feature-rich VoIP platform designed for businesses that want flexibility, scalability, and professional communication without high costs. Set up your cloud PBX in minutes, manage international teams, and serve customers worldwide — all from a single interface. Key features: - Virtual phone numbers in 110+ countries - Free cloud PBX with IVR, call routing, and analytics - Integration with CRMs: HubSpot, Zoho, Bitrix24, and more - Apps for desktop, mobile, and browser-based calling - AI-powered voice agents and call tracking - Full control via web interface and API Ideal for remote teams, support centers, and growing companies looking to modernize their phone systems.Starting Price: $2/month -
6
Google Voice
Google
Stay connected, organized, and on task with an easy-to-use phone solution that fits organizations of any size. Voice makes work calls less work. Make and receive phone calls using a work number on any device, anywhere. Start communicating more effectively. Voice can be customized to fit your day-to-day workflow. Number assignment, porting, and billing are neatly consolidated in the familiar G Suite Admin console. Google's powerful AI filters spam calls, transcribes voicemail automatically, and lets you configure your PBX. Integrations with Hangouts Meet and Calendar keep the focus on what's important. Voice can be deployed instantly — and globally — from anywhere, with less administrative work. Focus on what's important while staying connected on deskphones, smartphones, and the web. -
7
DID Global
DID Global
DID Global is a telecommunications partner for your business, providing communication and data services based on VOIP services and other small and wide spectrum technologies. Our services are chosen when they want to provide their business with rapid scaling, reduced advertising costs and increased sales. We operate in more than 150+ countries around the world offering the best conditions for our customers. Our services - VOIP telephony - PBX - Virtual (DID) numbers - SIP Trunk - SPAM checker - SMS service mailing All your customer communication solution in one place. Scale up and open the world to your business with DID Global.Starting Price: $10/users -
8
WeChat
Tencent
Whether you want to send messages or share photos and videos, you can chat freely through WeChat. Wherever you go, you can immediately get in touch with the people you care about using WeChat. Search and add friends directly via WeChat ID or mobile number. Start chatting once your friend request has been accepted. On Moments, you can share your life's favorite experiences using photos or videos with your friends, and also see your friends' Moments at any time. Let's share on Moments! Get face-to-face with your friends and family instantly via WeChat. WeChat allows you make free video and voice calls no matter where you are with one friend or a group of friends. If you're unable to express your feelings in words, then send a sticker to make your chats more fun. Designed by talented artists around the globe, WeChat's Sticker Gallery offers users free downloads and sending of countless fun stickers. Come and select your favorite stickers to chat with your friends!Starting Price: Free -
9
Bria
CounterPath
Bria is a softphone solution designed to extend the capabilities of your call server, PBX, or VoIP service so you can take calls anywhere on both desktop and mobile devices, and augment your communications with team messaging, HD video conferencing and screen sharing capabilities, hosted by CounterPath. Experience crystal clear audio and HD, 1080p video calls whether in your office or on-the-go; and manage calls easily with intuitive call recording, music on hold, and call transfer functions. Need more collaboration features? Bria Teams and Bria Enterprise include team messaging, screen sharing, and HD video conferencing with up to 200 participants! Easily talk, chat, meet, and share on any device in one efficient app that syncs calling and messaging history across devices so you're always in the loop. Check out counterpath.com for more details!Starting Price: $2.95/user/month -
10
MyOperator
VoiceTree Technologies
MyOperator is India's largest Call + WhatsApp platform, catering to 15000+ businesses including NCERT, Amazon, Lenskart, Apollo, and Myntra. With a suite of offerings like integrated Call + WhatsApp, Dialer App, 360-degree Campaign Management, Office IVR, toll-free number, call analytics, cloud call center, SMS/WhatsApp campaigns, and CRM integration, MyOperator empowers your team to convert every customer interaction into a business opportunity. ✅ 15000+ Brands using Call + Whatsapp to cater to their customers ✅2.5+ Billion Conversations managed through MyOperator platform ✅ Highly rated on Google, G2, and Capterra ✅ 99.9% uptime with multi-geographu redundancy ✅ Automate service through Voice and WhatsApp bots ✅ Build intelligent WhatsApp campaigns/ auromations to engage customers ✅ Run customer service on VoIP-ready Contact Center with WhatsAppStarting Price: ₹200/month -
11
Freshcaller
Freshworks
Freshcaller is a simple and reliable cloud-based contact center software that helps businesses connect with customers in an affordable way. With phone numbers in 90+ countries, Freshcaller lets customers set up their contact center in a few easy steps, and with zero phone hardware. Freshcaller integrates with several CRM and Helpdesk tools, enabling sales and support teams to work seamlessly. With powerful reporting and analytics, admins can get real-time insights into their customer experience as well as agent productivity. Agents can take calls on their desktops, laptops, or phone (both Android and iOS), to create a fully remote but connected contact center. Admins can add agent licenses, purchase additional numbers, add phone credits, and upgrade the pricing plan. Freshcaller is a truly modern and reliable phone system that is trusted by over 7000+ customers worldwide.Starting Price: $15.00/month -
12
TENIOS
TENIOS
TENIOS is a German-based communications provider specializing in advanced AI phone assistant and telephony solutions for businesses. Their comprehensive telecom-platform offers services such as virtual phone numbers, intelligent call routing, interactive voice response (IVR) systems, SMS, RCS, and a robust Voice API for seamless integration of voice applications. TENIOS also provides AI-powered phone assistants to automate customer interactions, enhancing efficiency in contact centers and diverse sectors with high call volumes. With over two decades of experience and hosting in Germany, TENIOS ensures reliable and scalable communication solutions tailored to meet diverse business needs.Starting Price: €50/ month (Pay as YouGo) -
13
DialMyCalls
OnTimeTelecom
Send bulk text messages, automated phone calls and emails to entire contact lists in seconds. Set up a free account and get started today! Use our mass notification app to send out automated phone calls to a list of phone numbers in seconds. We make it easy for you to create, schedule and send your automated phone call to all your contacts at once. Quickly and easily send mass text messages to an entire list of phone numbers at once using our mass notification service. DialMyCalls offers both long code and short code text messaging. Reach your audience immediately! Our free bulk email feature allows recipients to listen to your recording or read your text message via email. Include email addresses in your contact file, and you’ll be ready to send your mass notification! DialMyCalls’ mass notification solution is easily accessible on your favorite mobile device. Just download the app and send your notifications from anywhere.Starting Price: $7.49 per month -
14
ASTPP
ASTPP
#1 Open Source VoIP Billing Solution ASTPP has been empowering various VoIP businesses and service providers with its amazing Open Source VoIP solutions. It is regarded as one of the top VoIP billing solutions and the #1 open source FreeSWITCH-driven Class 4 and Class 5 Softswitch Solutions, which automates invoicing and billing processes completely. ASTPP is one of few solutions that support the N-level reseller structure. It uses cutting edge technologies like FreeSWITCH and OpenSIPs as core technologies to provide the most robust, reliable, and scalable solutions. ASTPP is a smart telephony platform, which has a suite of smart VoIP telephony solutions to offer to service providers and businesses, including, but not limited to: Class 4 Softswitch Class 5 Softswitch VoIP Billing Calling Cards Multi Tenant IP PBX DID Management FreeSWITCH Billing FoIP (Fax Over IP) STIR/SHAKEN Call Forwarding SIP Trunking MVNO Billing Mobile Dialer -
15
FreePBX
Sangoma Technologies
The “Free” in FreePBX stands for Freedom. That’s because FreePBX, the world’s most popular open source IP PBX, gives users the tools to build a phone system tailored to their needs. Discover the power of open source communications. Take a look at all the built-in features FreePBX has to offer and start building your phone system. Transform your FreePBX install into a robust Unified Communications system with commercial modules from Sangoma and other add-ons for FreePBX. Visit the Knowledge Base on the FreePBX Wiki! Or let FreePBX experts assist with support for installing FreePBX, updating, troubleshooting, and beyond. Completely free to download and use, the power of FreePBX comes from a global community of developers who ensure it remains a high compatibility and customizable platform with all the key features needed to build a scalable business phone system on any budget. -
16
LINE
Naver
Free Messaging Whenever, Wherever. Send free one-on-one and group texts to your friends anytime, anywhere! LINE is available for a variety of smartphone devices (iPhone, Android, Windows Phone, BlackBerry, and Nokia) and even your PC. Free Voice & Video Calls. Call friends and family as often as you want, for as long as you want. Free international voice and video calls make it easy to stay connected. Currently available for iPhone, iPad, Android, Windows Phone, PC (Windows and Mac), and LINE Lite on Android. Share exactly how you’re feeling by choosing from over 10,000 stickers and emoticons! Visit the Sticker Shop to discover original stickers of your favorite characters and celebrities. LINE NEWS is the most popular news content curation service in Asia and aims to deliver valuable content that enrich your everyday life. Receive medical consultations at home when you don't have time to visit a hospital or want to avoid the crowd. -
17
Rebtel
Rebtel
We automatically find the best phone line to connect your call through. We consistently analyze traffic to give you the lowest price possible. With the ingenious Red Box, we give you a unique experience based on your needs and calling behavior. We make international calling simple, reliable, and cheap based on your unique calling behavior. Get started with Rebtel and make cheap international calls with our app. It’s quick and super easy. With Rebtel, you can use any kind of phone to call any kind of phone, anywhere in the world. That’s because we have optimized your international calling by connecting them through local phone lines saving you money and ensuring great calling quality. Because we connect your call through local phone lines, you don’t have to rely on an internet connection or worry about your call dropping. Instead, you’re avoiding crazy international rates while getting the quality of a local call.Starting Price: $1 per 30 minutes -
18
VitalPBX
VitalPBX
VitalPBX is a unified communications PBX system based on Asterisk and Linux (Centos 7). VitalPBX provides a robust and scalable platform, which will allow you to manage your PBX in an easy and intuitive way. VitalPBX is built to be easy to use with tooltips across the system and a coherent user interface throughout. A telephony system should be aware of security hazards and avoid them. VitalPBX offers various levels of protection against cyber threats in the VoIP world.Starting Price: $100 -
19
Retreaver
Retreaver
Retreaver is a cloud-based call tracking and routing platform built for performance marketers, agencies, and brands. We help you tag, route, and optimize inbound calls in real time connecting each caller to the right agent, department, or buyer using custom logic and data. Track conversions, measure ROI, and personalize experiences with CRM integrations, caller profiles, and real-time tracking. Our flexible tag system gives you full control over routing, analytics, and call flow optimization. What sets us apart is hands-on, responsive support. No tickets, no waiting just real help when it counts. We also offer seamless integrations with tools like RedTrack, ClickFlare, and TrueCall to give you a complete performance marketing toolkit. With no contracts, no hidden fees, and performance-based pricing, Retreaver is built to scale cleanly and transparently with your business. Explore more on our socials, book a personalized demo, or share your experience with a review.Starting Price: $1.00/month/user -
20
2600Hz
2600Hz
An unrivaled UCaaS solution designed to empower Service Provider success. Differentiate your brand and offering in the market with a completely customizable, white label solution. KAZOO is 2600Hz's turnkey UC platform, offering the flexibility you need to provide a superior communication experience. Give your customers a communication solution that will make them successful. 300+ APIs enable you to customize a solution to help your customers do business better. White label your solution to build and maintain your brand recognition in the market. Low upfront costs let you get started quicker and stay cost competitive. Reliability and geo-redundancy ensures your customers are always online. Mobile ready lets your customers get business done when and where they need to. KAZOO is a multi-tenant platform and gives you the ability to open your sales channels. Bring on resellers, go direct, or have an agent model.Starting Price: $3.50/month -
21
CheckMyNumber
Noltic
Parse and validate international phone numbers directly in Salesforce to drive the relationship's success. Our Standard plan includes: - Parsing phone numbers - Full validation of phone numbers - Phone numbers formatting - Valid examples for all regions - Numbers comparison - Declarative for adminsStarting Price: $1,499 company/year -
22
TekSIP
KaplanSoft
TekSIP is a SIP Registrar and SIP Proxy for Windows. TekSIP supports UDP, TCP, TLS and WebSocket (IPv4 & IPv6) transports. TLS and Secure WebSocket are supported in only commercial editions. TekSIP is tested on Microsoft Windows Vista, Windows 7/8/10/11 and Windows 2008-2022 server. TekSIP can be deployed as a signaling server for WebRTC based SIP phones. TekSIP complies with RFC 3261, RFC 3263, RFC 3311, RFC 3581 and RFC 3891. It supports NAT traversal and ENUM. Please see technical details about NAT traversal in Readme. You can select IP address to be listened and alternative SIP endpoints for outgoing calls. You can also log session details into a log file and monitor active registrations and sessions in real-time. You can monitor number of active registrations and sessions using Windows Performance Monitor (Perfmon.exe). TekSIP can redirect calls to alternate endpoint when called endpoint is unavailable (Off-line, busy...). Active SIP session can be terminated via GUI.Starting Price: $239 -
23
Issabel
Issabel
Issabel is an open source unified communications platform that consolidates IP communication services into a single system, surpassing the constraints of a conventional PBX by integrating features such as call center capabilities, email, management reports, fax, video call meetings, audio recording, and CRM and platform integrations. It offers a robust, flexible, and easy-to-use call center module designed to efficiently automate and manage contact centers, handling both incoming and outgoing call campaigns through an intuitive agent console and call management interface. Issabel streamlines PBX solutions for service providers, enabling the management of multiple clients from a single instance, simplifying administration without the need for separate servers for each client. To enhance functionality, Issabel supports add-ons crafted to seamlessly integrate with the platform, adding features that interact with telephony to improve customer service and automate actions for support.Starting Price: Free -
24
FluentStream
FluentStream
Do you want a business phone service that works without costing a fortune in setup or monthly fees? Wouldn't it be nice to focus on your customers instead of spending hours on hold with your provider every time you want to make a small change? Welcome to FluentStream! We're committed to being the easiest business communication system to do business with. We offer no-contract plans with 24/7 client success for every account. Not only will we hold your hand throughout the entire onboarding process, but we'll do everything on your behalf (including the hassle of calling your internet provider). We know how complicated phone setup can be, and we're more than happy to do the heavy lifting so you don't have to. It's all part of being the easiest business to do business with.Starting Price: $20.00/month/user -
25
VoipNow
4PSA
VoipNow is a Cloud communications platform built for service providers and organizations in need of robust enterprise PBX, voice, video, presence, instant messaging, conferencing, faxing, and contact center features.Starting Price: $145.00/month/user -
26
Asterisk
Sangoma Technologies
Asterisk is an open source framework for building communications applications. Asterisk turns an ordinary computer into a communications server. Asterisk powers IP PBX systems, VoIP gateways, conference servers and other custom solutions. It is used by small businesses, large businesses, call centers, carriers and government agencies, worldwide. Asterisk is free and open source. Asterisk is sponsored by Sangoma. Today, there are more than one million Asterisk-based communications systems in use, in more than 170 countries. Asterisk is used by almost the entire Fortune 1000 list of customers. Most often deployed by system integrators and developers, Asterisk can become the basis for a complete business phone system, or used to enhance or extend an existing system, or to bridge a gap between systems. Build your own custom system with Asterisk? Buy a powerful, low-cost turnkey system based on Asterisk? Discover which option is right for you.Starting Price: Free -
27
NOLA AUTOMATION
NOLA AUTOMATION
The NOLA Automation Software all in one allows your business strategy to gather momentum in the most efficient manner. With the help of our software, you would not only be able to create schedule campaigns broadcast, In-outbound call, in-outbound predictive, SMS 2 WAY, voice drop, and email and many more, you also get the chance of emailing a link to the prospect that would redirect them to their accounts with the help of an online portal.. much, much more...Starting Price: $30/user -
28
VirtualPhone.com
VirtualPhone.com
Virtualphone.com’s Web Button allows you to engage with your customers using their preferred method of communication. Customize your Web Button to connect your customers to the right people using chat and voice conversations. Your customers can reach you anytime by clicking on a Web Button link on your website, online advertisement, email signature or online document. Give your employees the ability to manage all your business communications easily and effectively through their computer or smartphone. Remote, mobile and home-based workers can receive and place calls from any location with Internet access. All calls placed through Softphone will display your business Caller ID. Start making calls now. Download the VirtualPhone.com app for your desktop and mobile devices. All phone numbers come with advanced call management capabilities. Toll free and local numbers in 120+ countries. Get your own international toll free number.Starting Price: $5 per month -
29
MongoTel
MongoTel
Enjoy an intuitive, customizable approach to business telephony whether you’re a nationwide corporation, mom-and-pop shop, or MongoTel certified reseller. From flexible features for teams of any size to mass deployment in seconds, MongoTel is cloud-native, from the ground up. Personalization tools for users, streamlining controls for admins, and novel abilities for callers make for more meaningful contact. Our unique fusion of a certified installer network plus first-party tech support is the ideal way to deliver the most productive and rewarding user experience. At MongoTel, help is near. Literally. Our support team is composed of the same talents who built and maintain our proprietary technologies in the first place. MongoTel’s cloud-based phone ecosystem gives you the power to connect to each client on the individual level, whether they’re a business entity or an individual human. Our tools enable you to sell to those who need what you offer.Starting Price: Free -
30
Splicecom
Splicecom
A powerful platform that brings together the people, messages, and apps you need to respond quickly and communicate effectively as a team. A conversation can take many forms depending on the user's device of choice, where they are, and how quickly they need a response. Telephones and emails are still the leading business conversation tools. Live web chat requires a reply in real-time so you need to staff appropriately. While many consumers prefer to use smart devices and social media-based conversation Apps like WhatsApp Business, Facebook Messenger, etc. Splicecom Media Apps offer multi-media communication solutions delivered to Shared Inboxes ensuring your teams are in control; perfect for businesses of any size and industry. The Splicecom family of Unified Communications devices comprises affordable entry-level phones, context-sensitive IP system phones, keyless touchscreen desktop phones, and IP softphone apps for Windows and Apple Mac computers, smartphones, and tablets.Starting Price: Free