Everything you need to understand, choose, and set up a VoIP phone system for your business. Compare 8 providers from $10-23/user/month and switch from landline to internet calling.
Prices are per user per month billed annually. Unlimited domestic calling included unless noted.
| Provider | Per User/Mo | Video | SMS | Mobile App | Integrations |
|---|---|---|---|---|---|
RingCentral Full-featured UCaaS for growing teams | $20/mo | Yes | Yes | Yes | Salesforce, Slack, Google, Microsoft 365 |
Nextiva Simple, reliable with strong support | $18/mo | Yes | Yes | Yes | HubSpot, Salesforce, Zendesk |
Grasshopper Virtual number for solo operators and micro-businesses | $14/mo | No | Yes | Yes | Limited |
Vonage Business Flexible platform with strong API access | $19/mo | Yes | Yes | Yes | Salesforce, Microsoft Teams, Google Workspace |
Ooma Office Budget-friendly with no contract required | $19/mo | Yes | Yes | Yes | Google Workspace, Office 365 |
8x8 Express Entry-level plan for very small teams | $12/mo | No | No | Yes | Google, Microsoft |
Dialpad AI-powered with live call transcription | $23/mo | Yes | Yes | Yes | Salesforce, Zendesk, HubSpot, Slack |
Google Voice for Business Google Workspace add-on for G Suite users | $10/mo | No | Yes | Yes | Google Workspace only |
Filter by your requirements and see monthly costs.
VoIP (Voice over Internet Protocol) sends phone calls over your internet connection rather than traditional phone lines. For small businesses, this means you can have professional phone numbers, extensions, voicemail, and call features without buying or leasing physical phone hardware from a telecoms company.
Most small business VoIP plans cost $10-25 per user per month, billed annually. A team of 5 would typically pay $50-125 per month. Some providers include desk phone hardware in the monthly cost; others charge extra. This compares favourably to traditional landline systems which often cost $40-60 per line per month.
Not necessarily. Most VoIP providers offer a softphone app for desktop and mobile, so you can make and receive calls on existing devices. If you want physical desk phones, VoIP-compatible IP phones cost $50-200 each. Many businesses start with just apps and add hardware later.
VoIP uses roughly 100 Kbps per simultaneous call. A standard broadband connection of 25 Mbps can support 200+ simultaneous calls. For most small businesses, internet speed is rarely the issue. A stable, low-latency connection matters more than raw speed. Avoid using VoIP over congested shared Wi-Fi.
Yes. Number porting transfers your existing number to your VoIP provider. The process typically takes 1-4 weeks depending on your current carrier. Most VoIP providers handle the porting process for you. During the transition, calls continue to reach your old number.
Modern cloud VoIP services offer 99.9-99.99% uptime SLAs. The main risk is your internet connection. Always have a mobile hotspot or LTE backup plan. Most VoIP apps automatically route calls to your mobile when your desk connection drops, so customers rarely notice any outage.