Compare the Top SIP Trunk Providers for Cloud as of January 2026

What are SIP Trunk Providers for Cloud?

SIP trunk providers are communication service providers that utilize the Session Initiation Protocol (SIP) to provide voice and multimedia sessions over the Internet. They can be used to interconnect an organization’s VoIP infrastructure with the public switched telephone network, allowing businesses to make use of their existing VoIP systems while also taking advantage of external telephony services. SIP trunking is seen as a cost-effective way of providing reliable voice and data services for businesses. Compare and read user reviews of the best SIP Trunk providers for Cloud currently available using the table below. This list is updated regularly.

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    RingCentral RingEX
    RingCentral RingEX is a powerful cloud-based phone system that helps optimize your business communications. Providing enterprise-grade business communication tools for voice, fax, text, and video as well as bring your own device to work (BYOD) capability, RingCentral RingEX enables you to work where you want and how you want. Core features of RingCentral RingEX include auto-recording, conferencing, and unlimited long-distance and local calling. RingCentral RingEX's call management features can also be customized by configuring call forwarding, answering rules, message alerts, and missed-call notifications.
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    Starting Price: $19.99/month/user
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  • 2
    8x8

    8x8

    8x8

    A single platform that combines cloud phone, video collaboration, team chat, contact center and analytics. Optimize your organization's total cost of ownership by giving each user the exact features needed for the job. Eliminate organizational silos with full analytics and collaboration between contact center agents and functional area experts. Single administration tool for system setup, with user and data management. Combine call, directory, video conferencing, chat and contact center in a single license. Connect your business around the globe with enterprise-grade reliability and quality in the cloud. Schedule, start or join HD video and audio conferences from any device or room with no friction. Easily access your contacts whether they are colleagues on the same account or an external user. Design better customer experiences with an intelligent, collaborative, and reliable solution.
    Starting Price: $19.99 per month
  • 3
    Allstream

    Allstream

    Allstream

    Allstream is a leader in business telecommunications working with customers throughout the United States and Canada. Everything we do revolves around simplifying your business communications and helping you innovate, thrive and grow. Our communications technologies include a range of innovative, highly scalable voice, Internet and connectivity solutions that help organizations communicate and collaborate more efficiently and profitably. Customers across North America trust Allstream with their mission-critical business connectivity solutions. Here’s what you get when you partner with us. We make everything easy so that you can focus on your business. Allstream is a leader in business communications throughout North America. Founded over 170 years ago in parallel with Canada’s first transcontinental railroad, Allstream continually re-invented itself to remain a leading provider of business communication services.
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