Best Free VoIP Service Providers

With providers offering free business VoIP solutions, you can test the free calling service with a free single phone number, which can be enough for smaller businesses and startups to start making calls to clients all around the world.

In the article below, we have listed the most reliable and top-performing business VoIP systems in the industry, pinpointing certain specialties of each provider such as different integrations they offer, company types and sizes that fit each tool the most, and overall descriptions of how you can put these top-tier tools into good use for your needs.

How do you weigh out the cost and features you receive if you decide to scale up the plans and can you grow by using just the free version?

Read on, and find the perfect VoIP business phone system for your team.

Best Free VoIP Service Providers for Small Business Owners

1. CloudTalk

#1 User-Friendly Business Phone Software for Sales and Support Teams.

CloudTalk is a remote business phone solution that will equip you with advanced calling features and elevate your team and customer communication.

The software regulates customer calls through automated call distribution, streamlining the communication with features like inbound/outbound call management, voicemail and interaction recording, personalized support for premium clients, and more.

CloudTalk enables you to directly integrate with other CRM software and unify your contacts’ data, track sales & marketing communication, automated data entry, and everything else to grab the attention of your best leads.

Apart from the smooth integrations ensuring the agents address all the clients’ concerns, and the real-time reports giving you accurate insights into call performances, a high-quality audio and sound system is a big contributor to the software’s first-class customer experience.

Along with precise statistics and monitoring functions, CloudTalk is integrated with advanced call center features, intelligent call routing, allowing you to customize inbound calls, automatically record all calls, create personalized messages and greetings, and more.

The tool takes the burden off of you during business hours while keeping all of its functionality with call rerouting and special personalized announcement planning.

Eliminate the chances of routing your clients to the wrong person through automated call distribution, and send inbound calls based on pre-selected information so that the client always reaches the most qualified responder.

Create VIP queues for prioritized customers and special occasions, sending announcements relevant only to them.

Review the call statistics and track the quality of client servicing, and monitor each agent’s statistics to identify your top performers.


  • High-quality audio and sound system
  • Automatic call recording
  • Create personalized messages and greetings
  • Call rerouting
  • Special personalized announcement planning
  • Intelligent call routing
  • VIP queues for special customers
  • Call statistics and agent reporting
  • Various eCommerce, CRM, helpdesk integrations
  • Personalized support for premium clients
  • Web and mobile apps for Android, iOS, Windows, Mac, and Linux


After the 14-day free trial, you can purchase the Starter plan at $20 per user per month (billed annually).

The cloud-based tool is among the best call center software used by startups, scale-ups, SMEs, and eCommerce businesses helping them deliver first-class customer experiences with superb audio quality, advanced call center features, a variety of integrations, and much more.

2. RingCentral

Best Business Phone System for Advanced Features.

The cloud-based RingCentral is a VoIP solution that covers all aspects of voice communications and more, with chat, video conferencing, artificial intelligence, faxing, mobile VoIP, and many more collaboration tools.

RingCentral Video is a RingCentral-powered team collaboration software that equips your team with free video meeting and team messaging capacity, learn more here.

Unlimited calling, 1000 toll-free minutes at the lower plans, unlimited conference calling, business SMS are all included in the RingCentral Office plan along with Android and iOS mobile apps, unified messaging apps for mobile and desktop, HD video conferencing, etc.

Assign the users to different groups like call queues for inbound sales and support calls, voicemail-only extensions for redirecting callers to a voice mailbox, shared lines, or anything else.

The auto-attendant includes the optional multi level functions, dial-by-name directories, as well as automatic or triggered call recordings.

Add conditions that will change call routings such as the called number, caller ID, time of the day, or a combination of any of these.

View your phone system activity and detailed call logs which you can break down further and filter through a variety of criteria.

An AI integration mechanism has enabled RingCentral to deliver voice analytics after you have finished a call, while real-time transcription and machine learning are expected to be developed through Xsell.

RingCentral allows you to integrate with an existing PBX system or a local phone service with the on-premise Analog Telephone Adapter (ATA) that connects to PSTN through local analog lines.

The Competitive Local Exchange Carrier (CLEC) will help you do cool things like turn off spam calls.


  • Microsoft Office integration
  • Multi-level auto-attendant
  • Call logging and recording
  • Inbound caller ID name
  • Identity management capabilities like SSO, AD, and Google directory integration
  • Video conferencing for up to 100 people at the Premium level
  • Automatic and triggered call recordings
  • Add complex call routing conditions
  • PBX system and local phone service integration through the on-premise ATA
  • Block spam calls through CLEC


The Essentials plan is $19.99 per user per month.

While artificial intelligence features, local phone service integrations, video conferencing for up to 100 people are the advanced capabilities sought after an enhanced collaboration tool like RingCentral, the software still provides all the core PBX features for teams of all sizes, matched only by a few RingCentral alternatives.

3. Grasshopper

Best All-Around Small Business Solution with Versatile Features and Affordable Prices.

After the fast and easy set-up, Grasshopper covers the basic PBX features like call routing, voicemail, faxing, as well as the capability to set call time restrictions such as active 24/7, from 9 to 5 from Monday to Friday, or at your pace through a custom schedule.

You can define the extensions for each staff member individually, routing the calls first to the employee’s desk phone, and then to their cell phone.

Through call blasting, you can set extensions for departments, ringing multiple forwarding numbers in order.

Activate a custom voicemail greeting for each extension, emailing the caller’s voicemail to a list of recipients through voicemail transcription via email.

Once incoming fax is detected, the electronic faxing service converts it to a PDF file after the document is emailed to one or more configurable email addresses.

Grasshopper also allows you to place calls via iOS and Android apps and the PC softphone, while a dialer enables you to directly place a call, access voicemails,  check a contact list through your phone or a separate extensions list, configuring outbound number settings for billing and caller ID purposes.

In Grasshopper, you will find digital signature support and Wi-Fi calling support for frictionless transition between cell and Wi-Fi networks.

The fully-featured mobile apps allow you to transfer and forward calls, dial extensions and configure the extension administrative settings.


  • Call time restrictions and custom scheduling
  • Define extensions for each staff member
  • Call blasting
  • Custom voicemail greeting for each extension
  • Automatic fax PDF conversion
  • iOS and Android app and PC softphone calling
  • Configure outbound number settings for billing and caller ID purposes
  • Digital signature support
  • Wi-Fi calling support
  • Configure extension administrative settings