Telecommunications
RingCentral
RingCentral provides cloud business phone and communications services, combining calling with messaging and meeting tools for teams and customer-facing businesses.
Telecommunications
Business Phone Systems for Small Businesses
Explore business phone systems for handling calls and coordinating customer communications. Visit official provider websites for virtual phone, cloud calling and team communication options.
Directory overview
About this guide
Start with your team's locations, devices and call-handling needs. Decide whether you need a shared business number, extensions, queues or links to existing customer software. Confirm number availability and whether a current number can be transferred before planning a changeover.
Compare user charges, usage allowances, equipment requirements and the features included in the intended plan. Test call quality on the connections your team actually uses and ask about support and outage arrangements. Confirm emergency-calling capabilities and limitations directly with the provider; this directory does not activate phone services.
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Directory listings
Browse approved listings related to this topic.
Paid placements are marked Sponsored
Telecommunications
Nextiva
Nextiva provides business communications software including internet-based phone service, with tools for managing calls, messaging and customer interactions.
Telecommunications
Ooma
Ooma provides internet-based phone services for businesses, with virtual receptionist, calling and communication tools available through its Ooma Office product.
Telecommunications
Grasshopper
Grasshopper provides a virtual business phone system for small businesses, with a business number and tools for managing calls and messages on existing devices.
Telecommunications
Dialpad
Dialpad provides cloud business phone and communications software, with calling, messaging and meeting tools for teams working across supported devices.
Telecommunications
Aircall
Aircall provides a cloud business phone system for sales and support teams, with calling tools and integrations for managing customer communications.
Telecommunications
Phone.com
Phone.com provides internet-based business phone services, with tools for calling, texting and managing business communications across supported devices.
Telecommunications
MightyCall
MightyCall provides cloud calling and business phone software, with call queues, voicemail and routing tools for teams handling customer conversations.
Telecommunications
8x8
8x8 provides cloud business phone and communications software, with calling and administration tools for managing users and connecting business applications.
Telecommunications
Vonage
Vonage provides business communications services with calling, messaging and video tools, alongside applications for using business phone numbers across supported de...
Helpful information
Frequently asked questions
Ask the prospective provider to check transfer eligibility, timing and requirements for that specific number before cancelling an existing service.
Test calls, transfers, voicemail, mobile access and the integrations your team uses. Confirm service limitations and support arrangements directly.
Last reviewed Sep 11, 2026.