7 Cheap VoIP Services for Low-Cost Business Telephony

Businesses of all sizes are moving away from costly traditional phone lines to smarter, cheaper VoIP phone services that run entirely over the internet. It allows businesses paying around $100/month for a single landline to save up to 65% on telephony costs.
A cheap VoIP service doesn’t mean poor quality—it refers to a cost-effective business phone system that you can use to manage phone calls and SMS from anywhere, any device, while reducing your monthly phone expenses.
Calilio provides one of the cheapest VoIP phone services—$12 per user/month—with the calling charge starting from $0.0132 only.
How Cheap VoIP Services Keep Costs Low?
VoIP phone services replace physical phone systems with cloud technology to reduce business telephony expenses. They remove the need for expensive hardware, installation, and ongoing maintenance.
Moreover, affordable VoIP service from Calilio allows you to manage calls and SMS online from your smartphone, tablet or Pc. All the call data and recordings are stored in the cloud. Our cheap VoIP services include virtual phone numbers from 100+ countries — starting from $2 per month only.
- No PBX Setup Required
VoIP services run on cloud servers, so you don’t need on-site PBX systems or wired connections. It eliminates setup costs and reduces maintenance expenses. - Calls and SMS over the Internet
VoIP converts voice into digital packets and transmits them through the internet. It removes long-distance and network charges that come with traditional phone lines. Low Cost Calling
Calilio provides you with affordable VoIP service for inbound and outbound calling with calling rates ranging from $0.0132 to $0.0837 in the United States. You can purchase a virtual US phone number for $2 per month.- Bring-Your-Own-Device (BYOD)
Employees can use their existing devices — smartphones or laptops — to make and receive business calls. It reduces the need for extra hardware and makes remote work easier and more affordable.
How to Choose the Cheapest VoIP Phone Service?
Choosing the cheapest VoIP phone service is not only about finding the lowest price. You should make sure the cheap VoIP provider offers the quality, features and customer support that your business needs.
Compare VoIP plans based on features and scalability, and check if the provider has transparent pricing without hidden charges.
- Pricing Transparency
Choose a VoIP provider that lists all charges clearly. You must avoid services with hidden fees for setup or essential telephony features. - Call Quality and Reliability
Low-cost VoIP service should not mean poor performance. Look for providers that offer HD voice quality and 99.99% uptime to ensure uninterrupted communication. - Call Features
Make sure the plan includes the tools your business needs — such as call forwarding, IVR menus, power dialer, call recording, and AI-powered call reports and analytics. It improves productivity and customer service.
- CRM Integration
Choose a VoIP service that connects easily with your CRM, helpdesk, or other business platforms. CRM integration helps you manage calls, contacts, and reports from one place. - Customer Support
You must choose a provider with reliable support available 24/7 by chat, email, or phone. You need quick and helpful support when managing business calls.
7 Best Cheap VoIP Service Providers
Calilio, Sonetel, Google Voice, OpenPhone, and Dialpad are the cheapest VoIP service providers offering HD voice quality, reliable connections, and minimal dropped calls with advanced telephony and call management features.
1. Sonetel
Sonetel is a low-priced VoIP solution, offering virtual numbers starting at $1.79 per month. It offers a pay-as-you-go model for calls, with rates depending on the destination. The cheap VoIP service provider also offers international VoIP calling with free incoming calls in many countries.
Features:
- Virtual numbers in 100+ countries
- Free incoming calls in select regions
- Pay-as-you-go international rates
- Email notifications for missed calls
Pricing:
- Basic: Free (Basic telephony features with user credits)
- Premium: $13.95 per user/month
- Business: $39.95 per user/month
2. Calilio
Calilio is a cheap VoIP service provider, offering flexible pricing options — starting from $12 per month — for businesses of all sizes. It provides three low-cost VoIP plans, each including one free US or Canadian phone number. You can buy additional US numbers for just $2 per user/month.
Calilio maintains transparent pricing for international and long-distance calls—with calling rates in the United States being priced at $0.0132 only.
See the calling and SMS rates of all the countries>>>
Features:
- Virtual phone numbers from 100+ countries
- Free first local number (US or Canada)
- Call forwarding, IVR, and voicemail transcription
- AI call summary and sentiment analysis
- CRM integration and team messaging
Pricing:
- Standard Plan: $15 per user/month
- Premium Plan: $35 per user/month
- Custom Plan: Flexible pricing for enterprises
3. Phone.com
Phone.com is a low-cost VoIP service provider, primarily targeting enterprises and small businesses. Its flexible pricing model allows businesses to pay only for the needed features, reducing unnecessary expenses.
The cost of virtual phone numbers is $4.99 and $14.99 per month, depending on the country (For example: US - $4.99 and Argentina - $14.99).
Moreover, Phone.com offers a 30-day money-back guarantee.
Features:
- Call queues, E911, and hold music
- Fax-from-phone feature
- 30-day money-back guarantee
- No setup fees
Pricing:
- Basic: $18 per user/month
- Plus: $27 per user/month
- Pro: $40 per user/month
4. Google Voice
Google Voice is a cheap VoIP phone system, offering free calling and texting services within the USA and Canada. For international calls, the rates vary by destination. For example, calls to Australia cost $0.01 per minute, while calls to Chile cost $0.02 per minute.
Google Voice’s starter plan costs $10 monthly and supports up to 10 users. Additionally, a 14-day trial allows for testing the service before committing.
Features:
- Free calls and texts within the US and Canada
- Custom voicemail greetings
- Call forwarding and voicemail management
- Integration with Google Calendar and Gmail
Pricing:
- Starter: $10 per user/month (up to 10 users)
- Standard: $20 per user/month
- Premier: $30 per user/month
5. Zoom Phone
Zoom Phone offers a low-cost VoIP service, offering unlimited calling and texting for every subscribed plan. For the US and Canada, they have different pricing plans: pay-as-you-go and unlimited regional calling. The pay-as-you-go plan starts at $8, and the unlimited plan costs $15 monthly.
For international calls, it charges a per-minute rate. For example, calls to the United States cost between $0.0205 and $0.0318 per minute and calls to Australia cost between $0.0286 and $0.1820 per minute.
Features:
- Unlimited calling in the US and Canada
- Call delegation and voicemail transcription
- Shared line appearance and call transfer
- Integration with Zoom Chat and Meetings
Pricing:
- US & Canada Metered: $8 per user/month
- US & Canada Unlimited: $21.99 per user/month
- Pro Plus: $26.99 per user/month
6. Dialpad
Dialpad is an affordable, feature-rich VoIP solution for businesses. With pricing starting at $15 per month, it offers a good balance between affordability and functionality. Additionally, a 14-day free trial helps you examine the system before purchasing.
Moreover, setting up Dialpad’s virtual phone system is quick and easy. You can use it within a minute after the setup. As for calling rates, you can make unlimited free calls within the United States.
Features:
- Real-time transcription and call summaries
- Team messaging and file sharing
- Integration with CRM tools
- 14-day free trial
Pricing:
- Standard: $27 per user/month
- Pro: $35 per user/month
7. Quo
Quo is a cost-effective VoIP service, ideal for startups and small businesses. Its starter plan costs $15 monthly, including one local or toll-free number per user. Additional numbers cost $5 per month.
Moreover, OpenPhone provides unlimited calling and texting within the US and Canada, making it a budget-friendly choice for businesses with domestic telephony needs.
Features:
- Unlimited calling and texting (US and Canada)
- Shared numbers for teams
- Quick templates for message replies
- Simple setup and mobile app
Pricing:
- Starter: $19 per user/month
- Business: $33 per user/month
- Scale: $47 per user/month
Conclusion
Finding the cheapest VoIP service is not just about choosing the lowest price. The right provider should offer reliable call quality, essential business features, and transparent pricing without hidden costs.
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Call rates starting as low as $0.016/min
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Frequently Asked Questions
Who has the cheapest VoIP phone service?
Calilio provides one of the cheapest VoIP phone services combining affordability with AI-powered telephony and call management features. Its low-cost VoIP plans start from $15 per user/month, with calling rates as low as $0.0132/min.
What is the cheapest way to get a VoIP phone number?
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What is the best VoIP service for small businesses?
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