Best Call Center Infrastructure (CCI) Software for Microsoft 365

Find and compare the best Call Center Infrastructure (CCI) software for Microsoft 365 in 2026

Use the comparison tool below to compare the top Call Center Infrastructure (CCI) software for Microsoft 365 on the market. You can filter results by user reviews, pricing, features, platform, region, support options, integrations, and more.

  • 1
    3CX Reviews
    Top Pick

    3CX

    3CX

    Free for up to 10 users
    1,236 Ratings
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    3CX is an open-standards, software-based IP PBX that provides complete Unified Communications right out of the box. 3CX is suitable for all industries and sizes. It can provide everything you need, from mobility and status to advanced call center features and more, at a fraction the cost. 3CX is ideal for remote companies and includes mobile apps, video conference, and website live chat. The installation, management, and maintenance of the PBX are so simple that you can easily manage it yourself, on your own appliance, server, or on a cloud-based platform. You can also choose to have it hosted on 3CX for an easy solution.
  • 2
    Dialpad Support Reviews

    Dialpad Support

    Dialpad

    $15/user/month
    1,600 Ratings
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    Legacy call center systems are inadequate for supporting Agentic AI. Dialpad's AI-first framework integrates voice, digital communication, and human agents into a single platform, purpose-built for immediate reasoning and self-sufficient problem-solving, rather than simply adding AI functionalities. Data and voice are no longer isolated, merging to create intelligence from over 775 million AI summaries and continually growing. The governance aspect is embedded within Dialpad's Guardian layer, providing businesses with a secure and dependable infrastructure that scales effectively.
  • 3
    Yeastar P-Series PBX System Reviews
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    The Yeastar P-Series Phone System features an integrated call center solution designed to provide organizations with an all-in-one package for handling calls, video communications, messaging, and various integrations. This versatile system is ideal for enterprises of any scale.
  • 4
    KrispCall Reviews
    Top Pick

    KrispCall

    KrispCall

    $15 per user per month
    100 Ratings
    KrispCall allows you to manage all your telephony needs, whether they are personal, business, or corporate, using one app (Web, Android and iOS). You can access international numbers from the comfort of your own home. KrispCall makes it easy to create international numbers for national, local, shortcode and toll-free numbers (for more than 100 countries) in no matter how fast you want. You can easily manage your call logs. KrispCall's unified phonebox allows you to manage and monitor all your business calls, voicemails, and recorded conversations from one place. Call your international clients through their local numbers to earn their trust. KrispCall offers international numbers for your business at an affordable price. Our embeddable widget makes it easy to reach your customers. Clients can now easily call you by clicking on the KrispCall widget embedded in their website.
  • 5
    Thirdlane Reviews
    Top Pick
    Thirdlane is built for service providers and MSPs who need a multi-tenant, white-label UCaaS platform with deep API control. It delivers voice, video, chat, and contact center features while giving providers the ability to integrate billing, CRM, and IT workflows with ease. Why providers choose Thirdlane: - True multi-tenant PBX architecture built for scaling to thousands of tenants. - White-label flexibility - deliver a branded experience to your customers. - Thirdlane Connect apps unify messaging, calling, and meetings across all devices. - Built-in Contact Center for sales and support teams. - CRM screen pops and Click-to-Call to boost productivity. - Extensive APIs for automation and third-party integrations. Business outcomes: - Launch branded UCaaS without the heavy R&D cost. - Increase recurring revenue with scalable multi-tenant architecture. - Offer enterprise-grade features at a competitive price point. Thirdlane empowers providers to own their UCaaS offerings end-to-end, increasing margins and ensuring long-term customer loyalty.
  • 6
    Fuze Reviews
    Top Pick

    Fuze

    Fuze

    $20 per user per month
    7 Ratings
    Fuze stands out as the leading global platform for cloud communication and collaboration tailored for enterprises. It streamlines the intricacies associated with managing on-premises communication systems, ensuring exceptional voice quality and reliable service through unlimited calling to over 110 countries via more than 50 carriers, making it an excellent choice for businesses with a significant international presence. With a decade of experience supporting clients worldwide, we offer a strategic roadmap to maximize the benefits of your Fuze deployment. This comprehensive application operates flawlessly across various locations and devices, providing deep insights into usage, engagement, and organizational productivity. Upgrade your communication strategies with the premier cloud platform that integrates unified voice, high-definition video conferencing, real-time chat, content sharing, and contact center solutions all in one place, revolutionizing how teams collaborate and connect. Embrace the future of communication with Fuze and unlock the full potential of your enterprise.
  • 7
    Automation Anywhere Reviews
    Break the invisible barriers between systems, apps, and data. Meet the agentic automation platform that makes quick work of your most complex processes. Make getting things done look easy—because it is. Orchestrate your most complex, critical processes across systems and teams, leaving app and data silos in the dust. Drive every process at maximum speed. Set up and apply AI + automation wherever your teams work with simple-to-use tools and expert support. Get peace of mind and automate with AI in any context, no matter how complex, with full security and governance controls. Get right-size support every step of the way. Start with do-it-yourself training, community expertise from 1M+ automation professionals, and a global partner ecosystem.
  • 8
    Talkdesk Reviews

    Talkdesk

    Talkdesk

    $85 per month
    2 Ratings
    Talkdesk® supports customer journeys across voice and digital channels with enterprise CCaaS and Customer Experience Automation (CXA). CCaaS provides routing, workforce engagement, real-time agent guidance, collaboration, and analytics for human teams. CXA uses agentic AI to reason and act, while multi-agent orchestration coordinates work across AI agents, people, CRM, industry-specific, and back-office systems. Teams can identify automation opportunities, build agents with natural language, test them before deployment, and refine them using performance data. Talkdesk Data Cloud unifies customer, interaction, enterprise, and knowledge data so work continues with context across handoffs. Guardrails, observability, and human oversight support governed automation. Purpose-built AI, workflows, and integrations address industry requirements. CXA can work with Talkdesk CCaaS or an existing third-party contact center.
  • 9
    FluentStream Reviews

    FluentStream

    FluentStream

    $20.00/month/user
    Are you looking for a business phone system that is affordable and reliable? It would be great to spend more time with your customers than waiting on hold with your provider every little change. FluentStream is your home! FluentStream is committed to being the best business communication system. No-contract plans are available for all accounts. We provide 24/7 client support. We will be there for you throughout the onboarding process. We understand how difficult phone setup can be. We're happy to take over the heavy lifting so that you don't have too. It's all part and parcel of being the easiest business to work with.
  • 10
    Anywhere365 Reviews
    Anywhere365 was established with the conviction that every individual within an organization can function as a Contact Center. Consequently, we developed the Anywhere365 Unified Contact Center tailored for Skype for Business and Microsoft Teams. As an Independent Software Vendor, we are committed to consistently enhancing and evolving our offerings. Our Workstreampeople solutions empower companies to boost their performance and streamline their operations. Anywhere365 envisions a future where unnecessary conversations are minimized. Our Unified Contact Center solution emerged from a long-held vision to ensure that the correct information is delivered to the appropriate person at the perfect moment, regardless of their location. Through our Consultancy and Professional Services division, along with our expertise in crafting intelligent software applications, we have designed solutions for numerous organizations. The introduction of the Unified Contact Center for Microsoft Teams and Skype for Business marks a significant advancement in our journey. This evolution reflects our dedication to fostering seamless communication and operational improvement across various business environments.
  • 11
    Geomant Reviews
    Geomant enhances your current technology to elevate your customer experience significantly. By employing cloud-based solutions and ensuring seamless integrations, we maximize the capabilities of your contact center. Our robust, feature-rich cloud contact center system empowers users with comprehensive functionalities without the burden of expensive hardware or software licenses. With subscription-based pricing, you can easily adjust your licenses based on actual business needs, ensuring you never pay for more than you require. Rapid deployment in just a few hours allows you to quickly enjoy the advantages of integrating a chat solution into your setup. Additionally, we offer support for digital and social channels, in-queue and scheduled callbacks, call recording, and much more! Our solutions also include real-time and historical performance management tools for wallboards and agent desktops. Furthermore, we provide extensive contact center capabilities tailored for Microsoft Teams, ensuring a truly omnichannel experience for all users. This comprehensive approach guarantees that your team can respond effectively to customer needs across multiple platforms.
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