Best VoIP Providers - Page 21

How Many VoIP Providers Products Does G2 Track?

Total Products under this Category: 566

Category Stats (Nov 2026)

  • Average Rating: 4.4/5 (↑0.01 vs Oct 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: VoiceStack (+10.92%) - Among all products in this category, VoiceStack recorded the largest rating increase compared to last month

Last updated: November 01, 2026

How Does G2 Rank VoIP Providers Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 85,000+ Authentic Reviews
  • 566+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for VoIP Providers

G2 Grid® for VoIP Providers plotting products by satisfaction and market presence

Highlighted products: RingEX, Nextiva, Quo, Zoom Phone, Dialpad Connect, Webex Suite, Webex Calling, and Aircall.

Underlying data: [Grid® JSON](https://www.g2.com/categories/voip-providers/grids.json?focus%5B%5D=ringex&focus%5B%5D=nextiva&focus%5B%5D=quo-quo&focus%5B%5D=zoom-zoom-phone&focus%5B%5D=dialpad-connect&focus%5B%5D=cisco-webex-suite&focus%5B%5D=webex-calling&focus%5B%5D=aircall)

BubblyPhone

BubblyPhone is a browser-based international calling service for people who need to reach landlines and mobile phones worldwide without installing software, configuring a SIP client, or signing a contract. Calls can be placed directly from any browser — no software to install, no desk phone, and no Google account required. Pricing is pay-as-you-go by the minute, with no monthly minimum and no subscription required to make calls. You pay only for what you use, and the per-minute rate is shown before each call connects. Beyond outbound calling, BubblyPhone offers dedicated US and UK phone numbers for receiving calls and SMS, AI-generated call transcripts, and live AI translation that allows both sides to speak their own language in real time across more than 60 languages. Native iOS and Android apps are also available for calling on the move. Common uses include support and sales teams calling international customers, recruiters screening candidates abroad, people keeping in touch with family overseas, and anyone who needs a second business number without carrying a second phone.

Who Is the Company Behind BubblyPhone?

Business Phone Systems (VoIP)

OFFICErING was created in 2017 after the merging of these two giants of the Industry. The combination assembled the most advanced telecommunication hardware, software, expert and client service within one company.

Who Is the Company Behind Business Phone Systems (VoIP)?

BVoIP

bvoip (www.bvoip.com) helps IT and Managed Service Providers attack voice and unified communications worldwide. Having come out of the MSP space, bvoip designed its program to not only automate how MSP’s interact with their existing systems and tools but to also assist MSP’s with an offering to standardize their Unified Communications offering to their customers. bvoip is currently available in North America, Europe, and the Australian / New Zealand Regions.

Who Is the Company Behind BVoIP?

  • Seller: BVoIP
  • Year Founded: 2014
  • HQ Location: Hatfield, US
  • LinkedIn® Page: www.linkedin.com
    11 employees on LinkedIn®

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How it works

CaberTel

Our business phone service is a PBX hosted in the cloud and utilizes Voice Over Internet Protocol (VoIP) to ensure an exceptionally high quality of service and crystal clear communications.

Who Is the Company Behind CaberTel?

CallGear

CallGear is an online service that shows you where your phone leads come from.

Average Rating: 5.0/5.0

Total Reviews: 2

Who Is the Company Behind CallGear?

  • Seller: Callgear
  • Year Founded: 1999
  • HQ Location: Dubai, AE
  • LinkedIn® Page: www.linkedin.com
    43 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Large, 50% Small

What Are Recent G2 Reviews of CallGear?

What Are G2 Users Discussing About CallGear?

CallHarbor VoIP

CallHarbor provides the 360 approach to communications, with voice, messaging, video, and mobile. CallHarbor is not your average VoIP provider. CallHarbor provides nationwide white glove service, including free onsite installation, free onsite training, and top tier 24/7 Michigan-based customer service and support. Our onboarding process makes it effortless for you to switch over from an existing provider or from aging technology. We provide organizations with VoIP systems that have all the telephony advantages of an enterprise solution, at a manageable price. We always offer the latest technology with robust features including easy to change auto attendants, call recording, mobile app, web softphone, SMS/MMS, voicemail transcription, text-to-speech functionality, and much more.

Who Is the Company Behind CallHarbor VoIP?

Callix

Callix is a cloud contact center platform (CCaaS) built in Brazil for teams that handle a high volume of calls and WhatsApp conversations. More than 800 companies use Callix to run outbound sales, inbound sales, debt collection, payroll-loan (consignado) lending, surveys and customer service from a single web-based platform, with no hardware or on-premise PBX to maintain. Auto dialer. Callix offers Preview, Power and Predictive dialing modes on the same license. In Power and Predictive modes, the dialer places up to 10 simultaneous calls per agent and connects only answered calls, so agents spend their time talking to people instead of waiting through busy signals and voicemail. Campaigns support attempt limits per number, local caller ID and call recording. Reverse IVR (outbound IVR / voice broadcasting). A virtual agent calls an entire contact list with a recorded or text-to-speech message, up to 5,000 calls per day per license, and transfers anyone who presses a key to a live agent queue or to WhatsApp. Around 99% of voicemails are detected and discarded, most of them before generating telecom cost. Common uses include collections, appointment confirmation, satisfaction surveys and offers. WhatsApp Business API. As an official Meta Business Solution Provider, Callix delivers multi-agent WhatsApp support on a single official number, Meta-approved message templates, bulk messaging, and an AI chatbot, with every conversation stored alongside the contact’s call history. Inbound call center and cloud PBX. Multi-level IVR, business-hours rules, queue distribution strategies, skill-based routing, overflow and automatic callback. Supervisors monitor operations in real time with listen, whisper and barge-in, and track service level, wait time, abandonment and handling time on live dashboards. Built for operations. Callix integrates with CRMs and internal systems through an open API and webhooks, and customer data is hosted in Brazil. Licensing is concurrent: companies pay for agents logged in at the same time, so different shifts share licenses. Contracts are monthly with no lock-in, and new accounts go live within hours. Callix serves contact centers and BPOs, sales teams, collection agencies, financial services, healthcare and education companies, from operations with a single agent to hundreds of positions.

Who Is the Company Behind Callix?

CallPayWall

CallPayWall answers every call for a small business. Paige, the virtual front desk, picks up the calls the owner can't, books appointments, texts callers, transfers urgent calls and takes detailed messages, in English, Spanish and 27 more languages. Owners can listen in live and take over any call from the app or the web, and callers can press 1 at any time to reach a person. CallPayWall also includes a patent pending caller paywall: spam callers and telemarketers pay to reach the owner, while customers and saved contacts ring through normally. Built for home services, trades, clinics and local businesses that lose jobs to missed calls.

Who Is the Company Behind CallPayWall?

CallSwitch One

CallSwitch One is our industry-leading unified communications platform. Underpinned by a powerful VoIP telephony system, CallSwitch One includes a range of advanced call handling and management features, alongside chat, presence, document sharing and more. All of this can be managed centrally through our secure administration dashboard, and deployed through proprietary mobile, desktop, and web applications.

Who Is the Company Behind CallSwitch One?

Who Uses This Product?

  • Company Size: 100% Medium

What Are CallSwitch One's Pros and Cons?

Pros
  • Connectivity (2 reviews)
  • Ease of Use (2 reviews)
  • VoIP Services (2 reviews)
  • Affordable (1 reviews)
  • Business Tools (1 reviews)
Cons
  • Admin Limitations (1 reviews)
  • High Cost (1 reviews)
  • High Pricing (1 reviews)
  • Platform Issues (1 reviews)
  • System Instability (1 reviews)

Calltuv

CallTuv.com is a type of browser-based softphone (VoIP) and international calling solution that helps users place outbound calls to landline and mobile phone numbers worldwide using prepaid, pay-as-you-go credits. It is intended for individuals and organizations that need to reach standard telephone numbers from a web browser rather than only app-to-app calling. Typical audiences include remote and distributed teams, customer-facing business functions (sales and support), travelers, and people who regularly call internationally. The product centers on a web dialer workflow: a user creates an account, adds calling credit, and dials international numbers directly in the browser. CallTuv is positioned around international coverage and destination-based pricing, with per-minute rates that vary by country and number type. It also describes collaboration features for multi-user workspaces, which can be relevant for small businesses and teams that want shared calling resources and visibility. Browser-based outbound calling: place calls from a desktop or mobile browser without installing a dedicated app, targeting both landlines and mobile numbers. Pay-as-you-go credit model: prepaid credits are used for calling, with charges deducted based on time spent on calls and billed per minute according to stated billing rules. International reach and rate lookup: supports calling across many countries and provides destination-based pricing so users can estimate costs before dialing. Team and workspace features: supports inviting teammates, sharing contacts, using pooled balances, and providing administrators with shared call visibility/logs for a workspace. Security and usage constraints: the service describes encrypted calling and includes policy constraints such as not using the service for emergency calling; it also references call recording only where legally permitted. Common use cases include making international personal calls when mobile roaming or carrier international plans are costly, enabling outbound calling for globally distributed sales or support teams, and placing calls from shared or temporary devices where installing software is undesirable.

Who Is the Company Behind Calltuv?

Carusto IP-PBX

Carusto offers professional software solutions for telecommunication tasks. Our software solutions allow you to automate business processes quickly and efficiently, to improve service quality and reduce costs.

Who Is the Company Behind Carusto IP-PBX?

Cebod Telecom

Cebod Telecom provides cloud-based telephony solutions to all types of businesses, small or large.

Who Is the Company Behind Cebod Telecom?

Celerity Telecom

Celerity Telecom offers two cloud-based auto dialer platforms to meet user needs. Managerial training and support provided for every platform.

Who Is the Company Behind Celerity Telecom?

Neeraja Prakash
NP
Researched and written by Neeraja Prakash
Updated April 9, 2026