10 Best VoIP Services for Call Centers

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Olivia Deng


Desktop phones are a relic of the past. If you had to use one every time you need to make a call, you'd be making fewer calls than you potentially would with a VoIPsolution

VoIP call center

VoIP (Voice Over IP) enables you to make calls from anywhere as long as you have a broadband internet connection.Today, approximately 31% of all businesses use VoIP systems. Its biggest draw? Cost savings: on average, businesses save 50 to 75% by switching from a traditional telecom system to a VoIP system. 

In this post, we'll highlight the top VolP service providers and call-center phone systems you can leverage for your business. Still not exactly sure what VolP or VolP systems are? Click here to jump to more details.

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1. HubSpot


Get started with making calls using HubSpot VoIP.

HubSpot VoIP features automatic call logging, which ensures that all customer communication is captured in real-time and logged directly in the HubSpot CRM. Another standout feature of the app is call recording, which can help businesses monitor and analyze customer interactions to identify areas for improvement. 

Additionally, HubSpot VoIP provides call tracking, enabling businesses to track the number of incoming and outgoing calls and analyze call metrics, such as call duration and frequency. 

The app also offers an easy-to-use interface and integrations with popular communication and productivity tools like Zoom and Slack, to help teams be more productive and efficient. 

Key features:

  • Call log management
  • Call recording
  • Reporting call metrics

Pricing: HubSpot’s VoIP feature is available in the Starter, Professional, or Enterprise editions of Sales Hub and Service Hub

2. RingCentral Office®

RingCentral Office


RingCentral includes features like faxing, video meetings, conferencing, call logs, and instant messaging. 

The platform also offers artificial intelligence integrations and unlimited calling and conferencing tools that can help businesses streamline many of their call related tasks or experiences.

Key features:

  • Video meetings
  • Call logs
  • Instant messaging

Pricing: The most popular plan is an annual plan of $34.99 per month, which includes unlimited users, 50 people video calling, and 2,500 toll-free minutes.

3. Nextiva Enterprise Cloud VoIP



Nextiva offers mobile and desktop apps, auto attendants, call management, call-related analytics, and 24/7 support. Plus, you can make HD-video calls with screen sharing all within your own secure, dedicated conference bridge. 

Nextiva also consolidates company communications into a single platform, which allows sales, marketing, and support teams to stay on the same page.

Key features:

  • HD-video calls
  • Reporting and analytics
  • Conference calling

Pricing: Monthly plans start at $20.95/mo

4. 8x8 X Series

8x8 X Series


8x8 X Series is one cloud solution for voice meetings, call centers, and collaboration, which hosts advanced features, like extension dialing, ring groups, call recording, faxing, video calling, and web conferencing. 

The product is available in 47 countries, and integrates with telephone, computers, and mobile devices, allowing for a more unified, international service. 

Key features:

  • Extension dialing
  • Call recording
  • Web conferencing

Pricing: X Series X4 starts at $48/month per user and offers unlimited calling, HD voice, Team Messaging, video conferencing up to 100 participants, and analytics.

5. Vonage® Business Cloud



Vonage offers a unified communications platform that helps you connect with customers via voice, text messaging, chat or video. You can also easily transfer between desktop and mobile devices using the mobile app. 

The platform's VonageFlow feature allows  instant messaging, texting, and file sharing on one platform. It  also offers SD-WAN, which provides an additional, reliable bandwidth to help maintain a strong connection during busy seasons without the extra cost.

Key features:

  • Instant messaging
  • File sharing
  • Call recording

Pricing: The most popular plan starts at $27.99/mo. per line for 5-19 lines.

6. VirtualPBX



VirtualPBX offers customizable plans that fit the size of your business, whether it be one or 1,000 employees. Features include auto attendant, ring groups, custom greetings, and the Real-Time Monitor, which helps you view which team members are busy or available at any given moment. 

The tool's "Dash" features come with 4G LTE mobile, faxing, and hot desking, which allows you to stay connected even when you have to move between workstations.

Key features:

  • Business texting
  • Auto attendant
  • Integrations with Microsoft Teams, Zapier, Dropbox, and more

Pricing: The most popular plan starts at$26.99/mo. per user per month.

7. Dialpad



Dialpad has "voice intelligence," a sentiment analysis tool that runs in the background of your phone calls and uses speech recognition, natural language processing, machine learning, and real-time coaching to analyze your interactions with customers. 

As you converse, Dialpad creates to-do lists, finds answers to recurring questions, and identifies trends and insights that appear over time. 

Key features:

  • Sentiment analysis for phone calls
  • AI transcriptions
  • Track customer conversations across multiple channels like WhatsApp, Facebook Messenger, and Apple Business Chat

Pricing: The most popular Standard plan starts at$15/mo. per user.

8. Ooma



Ooma offers features such as virtual receptionist, extension dialing, and conference calling, as well as smart voice and security features, like call blocking and virtual fax.. 

Ooma's mobile app enables users to make and receive calls and access voicemail or contacts from their mobile devices. Additionally, Ooma's reporting and analytics dashboard provides businesses with real-time insights into their phone usage, call quality, and other metrics.

Key features:

  • Virtual receptionist
  • Extension dialing
  • Reporting and analytics dashboard

Pricing: Business plans include Essential, starting at $19.95/mo. per user; Pro, starting at $24.95/mo. per user; and Pro Plus starting at $29.95/mo. per user.

9. Grasshopper



Grasshopper provides features like call forwarding, routing, voicemail transcription, and call screening. 

Grasshopper's mobile app allows users to answer calls, view voicemail, and send SMS messages directly from their mobile device. 

Additionally, the software delivers real-time analytics and reporting to businesses with a view of their phone communication, allowing them to make informed decisions about their marketing and sales strategy.

Key features:

  • Call forwarding and routing
  • Voicemail transcription
  • Real-time analytics and reporting

Pricing: Plans include Solo at $28/month, Partner at $46/month, and Small Business at $80/month.

10. Google Voice

Google Voice


With Google Voice, businesses can make and receive phone calls and send and receive SMS messages from their computer or mobile device. The platform offers caller ID customization, call screening, and voicemail transcription. Google Voice’s mobile app is available on both iOS and Android platforms, enabling users to stay connected on-the-go. 

Key features:

  • Call screening
  • Voicemail transcription
  • Mobile app

Pricing: Plans include Starter at $10/mo. per user, Standard at $20/mo. per user , and Premier at $30/mo. per user.

What Is VoIP?

VoIP allows you to make phone calls with a broadband internet connection (like Wi-Fi) rather than a typical, analog telephone line. It works by converting your voice into a digital signal that's passed through the internet, and doesn't require a traditional phone for a voice call.

VoIP calls can occur from VoIP phones, computers, or phone adapters. The digital signal can travel straight to another computer or VoIP phone, or convert into a normal telephone signal if contacting an analog telephone. 

There are many advantages to using VoIP over traditional phone services. Here are three core reasons to consider adopting a VoIP call center phone system:

1. Lower Cost

At Verizon, a traditional, unlimited mobile plan ranges from $40 to $60 for four lines per month. A landline home plan starts at $79.99 per month. A business VoIP plan starts at $35 per line per month for one to ten lines and can go as low as $25 per line per month for 21+ lines.

Clearly, you can see the difference in price between an analog phone plan and VoIP phone service. Many companies have made the shift due to this cut in cost for communications.

In many cases, VoIP can even be free. After all, if you have a computer, microphone, speaker, and WiFi connection, you can likely find and use a free VoIP service.

2. Better Features

VoIP phone service offers all the same features included in your traditional phone plan: voicemail, caller ID, call forwarding, three-way calling, and more. Plus, it offers even more features, such as the convenience of being able to connect these features to a computer or other device. Your employees can take or make calls and listen to voicemails straight from their computer, laptop, or tablet.

3. Video Calls

VoIP hit peak popularity back in 2003 when Skype was founded. This app allows you to make video conference calls and phone calls and share instant messages. The ability to use these services for free was revolutionary and a key aspect of VoIP that cannot be accomplished by traditional phone services.

VoIP Can Be a Game Changer for Your Business

As businesses continue to transition to remote and hybrid work environments, having a reliable and flexible telecommunications solution becomes increasingly important. 

VoIP solutions provide businesses with a range of communication tools, including voice and video calling, text messaging, and conferencing, all within one streamlined platform. They also offer businesses greater flexibility and scalability and cost savings since they don’t require hardware costs like traditional telecom solutions.

Get started with implementing a VoIP solution with HubSpot’s VoIP solution, a part of Sales Hub.

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