Best Softphone Applications for Microsoft 365

Find and compare the best Softphone applications for Microsoft 365 in 2026

Use the comparison tool below to compare the top Softphone applications for Microsoft 365 on the market. You can filter results by user reviews, pricing, features, platform, region, support options, integrations, and more.

  • 1
    Yeastar P-Series PBX System Reviews
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    Enhance your team's productivity with Yeastar Linkus, the premier softphone that transforms your mobile device, desktop, or web browser into a robust office extension. No matter if you're working remotely, out in the field, or traveling, Linkus guarantees that you stay connected and in control.
  • 2
    3CX Reviews
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    3CX

    3CX

    Free for up to 10 users
    1,234 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.
  • 3
    Adversus Reviews

    Adversus

    Adversus

    €100 pr. license
    170 Ratings
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    Adversus features an integrated cloud softphone, enabling outbound sales representatives to initiate and answer calls straight from their web browser, eliminating the need for additional hardware or desk phones. This solution is tailored for high-volume outbound calling, offering rapid call management, automatic lead uploads, and organized processes for after-call tasks. Sales reps can concentrate on engaging with customers rather than handling administrative duties. It seamlessly integrates with CRM systems to record calls and synchronize data effortlessly. With a dependable infrastructure boasting over 99.97% uptime, it adheres to GDPR regulations and holds ISO certification, making it an excellent choice for both remote and on-site outbound teams.
  • 4
    Thirdlane Reviews
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    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.
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