Liza Bazilevici creates content at PBX.IM focused on cloud telephony, VoIP systems, and contact center solutions. She makes complex topics easier to navigate, offering practical insights that help IT teams and business leaders understand and choose the right communication tools.
If you're researching Microsoft Teams alternatives, the shortlist is shorter than the SERP suggests. Teams dominates the unified communications market, but it's far from a perfect fit for every team. The best alternatives include PBX.IM, Zoom Workplace, Google Chat, Slack, Webex, RingCentral, GoTo Connect, Lark, Rocket.Chat, Chanty, and Mattermost, each suited to different team sizes, stacks, and priorities. And if your frustration is specifically with calling costs or PSTN coverage, not the collaboration layer, PBX.IM Microsoft Teams Direct Routing lets you fix the voice problem without leaving Teams at all.
The reasons people start shopping around are consistent: Teams can feel bloated for non-technical users, Microsoft Calling Plans are expensive at scale, guest access is clunky, and the platform only really shines if you're already deep in the Microsoft 365 ecosystem. Some of those problems require a different collaboration platform. Others just need a different phone layer.
This guide covers both paths.
Microsoft Teams has roughly 320 million monthly active users. That number creates an impression of universal satisfaction that doesn't hold up when you talk to IT administrators and operations leaders at companies between 10 and 500 employees. Here's what actually drives the search for alternatives.
Teams is a resource-heavy application. On older hardware or underpowered machines, it struggles. Users report slow startup times, high RAM usage, and a desktop experience that feels heavier than the job warrants. For organizations where most employees aren't technical, the UI complexity compounds the problem.
The base Teams Essentials plan starts at $4 per user per month, but the pricing ladder gets steep quickly. Microsoft 365 Business Basic, which most organizations need to get full functionality, runs $6 per user per month. Add Microsoft Calling Plans, required if you want PSTN calling without a third-party provider, and you're looking at an additional $15 per user per month for domestic plans, more for international. At 100 seats, that adds up fast.
Even when organizations are willing to pay for Microsoft's native calling, the plans frequently fall short. Coverage gaps in specific countries, limited IVR and call queue capabilities, and minimal control over caller ID are recurring complaints. For companies with global operations, Microsoft often simply doesn't offer local numbers in the countries they need. This is where Microsoft Teams Phone alternatives, providers that handle the PSTN layer independently, become a practical fix without replacing the collaboration platform entirely.
External collaboration in Teams requires guests to either create a Microsoft account or navigate a guest-access flow that many recipients find confusing. For teams that work closely with clients, agencies, or contractors, this creates unnecessary friction on every new project.
Teams has evolved rapidly, and the interface shows it. Channels, chats, meeting chat, wikis, and tabs coexist in ways that confuse new users. Onboarding a non-technical team onto Teams takes longer than it should.
For companies in regulated industries or jurisdictions with strict data residency requirements, Microsoft's cloud infrastructure isn't always a fit. The inability to self-host Teams is a hard blocker for some organizations.
The dual-path thesis worth keeping in mind: some of these problems require a different platform. Others just need a different phone layer.
Before committing to a migration, it's worth being precise about what you're actually trying to fix. The answer changes the solution entirely.
Teams replacement makes sense when the collaboration experience itself is broken. Specifically:
If any of those describe your situation, the alternatives below are worth a close look.
If your team is comfortable with Teams for chat and video, the platform is probably not the problem. The issue is more likely the phone layer on top of it. This is the right path when:
In this scenario, replacing Teams means throwing away a working collaboration platform to solve a problem that lives one layer below it.
The Microsoft Teams competitors on this list were evaluated across the same set of criteria to keep comparisons meaningful for IT decision-makers and operations leaders at SMBs.
Message threading, channel organization, search, and notification control: the fundamentals that teams live in every day.
Reliability, maximum participant counts, screen sharing, recording, and breakout room support.
Depth of pre-built integrations with common business tools, quality of the API and webhook support, and compatibility with both Microsoft and non-Microsoft stacks.
SOC 2, HIPAA, and GDPR certifications, SSO and MFA support, data retention policies, and e-discovery capabilities.
Real cost at different team sizes, including the add-ons most organizations actually need, not just the base plan headline price.
How quickly a non-technical user can get productive, and how much IT overhead the platform requires.
Availability, response times, and quality of documentation.
Cloud, self-hosted, and hybrid availability, relevant for data sovereignty and regulated industries.
The table below gives a quick overview of best MS Teams alternative providers. Detailed breakdowns follow.
PBX.IM is a cloud PBX and SIP trunking provider built specifically for businesses that want enterprise-grade telephony without enterprise-level complexity. For Microsoft Teams users, PBX.IM Direct Routing is the most direct way to solve voice and PSTN limitations without migrating off the platform. With coverage across 150+ countries and a Microsoft-certified Session Border Controller, PBX.IM connects Teams to the global PSTN at rates significantly lower than Microsoft's own Calling Plans.
Best for. Companies currently paying for Microsoft Calling Plans who want lower per-minute rates, better international coverage, or contact-center-style capabilities inside Teams without replacing the collaboration layer.
Key capabilities.
Pricing. PBX.IM offers one free account to get started. Paid plans scale by usage and seat count, with pricing varying based on country coverage requirements and call volumes. Contact PBX.IM for a quote.
Pros.
Cons.
Zoom has expanded well beyond video conferencing into a full collaboration suite: persistent team chat, phone, whiteboard, and AI-powered meeting summaries. For SMBs that need strong video as the center of their communication, Zoom Workplace is the most polished Teams alternative available.
Best for. SMBs and mid-market teams where video quality and meeting reliability are non-negotiable, and where AI-assisted post-meeting workflows (summaries, action items, transcription) add real value.
Key capabilities. Post-call AI summaries, call monitoring, call recording, breakout rooms, whiteboard, Zoom Phone add-on for PSTN calling, and extensive third-party integrations.
Pricing. From $13.33 to $18.33 per user per month for collaboration plans. Zoom Phone is an add-on.
Pros.
Cons.
For organizations already running on Google Workspace, Google Chat is the lowest-friction Teams alternative. It doesn't try to do everything; it does tight integration with Google's productivity suite extremely well.
Best for. Teams that have already committed to Google Workspace and want collaboration that fits naturally into that environment without adding a separate platform.
Key capabilities. Threaded spaces, direct messages, Google Meet integration, shared Drive and Docs access within conversations, and noise cancellation on video calls.
Pricing. Included with Google Workspace plans starting at $6 per user per month.
Pros.
Cons.
Slack remains the benchmark for team messaging UX. Its channel organization, search, notification controls, and integration ecosystem are still ahead of Teams for teams not anchored to Microsoft 365. For developer teams in particular, Slack's integrations with GitHub, Jira, Linear, PagerDuty, and similar tools are hard to match.
Best for. Teams using a non-Microsoft productivity stack, engineering and product teams, or any organization where messaging-first workflows matter more than built-in video.
Key capabilities. Persistent channels, threads, deep integration marketplace (2,600+ apps), Slack Connect for external collaboration, huddles, clips, and workflow builder for automation.
Pricing. From $7.25 per user per month (Pro) to $12.50 (Business+).
Pros.
Cons.
Cisco Webex has reinvented itself as an AI-forward enterprise platform. It competes directly with Teams at the large enterprise level, with particularly strong performance on high-participant video meetings, compliance certifications, and AI automation capabilities.
Best for. Large enterprises with strict compliance requirements (SOC 2, HIPAA, FedRAMP), teams that frequently run large meetings with 1,000+ participants, and organizations that want AI assistant capabilities deeply embedded in their workflows.
Key capabilities. AI Assistant, live polling and Q&A in meetings, unlimited whiteboards, visual voicemail, end-to-end encryption on all meeting types, and a broad compliance certification portfolio.
Pricing. From $12 to $22.50+ per user per month. A limited free plan is available.
Pros.
Cons.
RingCentral is one of the most established UCaaS platforms, combining voice, video, team chat, SMS, and fax in a single cloud platform with a 99.999% uptime SLA. It's a strong choice for enterprises that need reliability and compliance above all else.
Best for. Remote and hybrid enterprises that need a fully integrated UCaaS suite with proven uptime, strong compliance posture, and the ability to scale across hundreds or thousands of seats.
Key capabilities. Real-time analytics, screen sharing, breakout rooms, voicemail transcription, social media messaging integration, and an extensive integration library.
Pricing. From $20 to $35 per user per month.
Pros.
Cons.
GoTo Connect is a cloud phone and meeting platform built around unlimited calling in 50 countries and interaction analytics. It suits organizations with distributed international teams that need both reliable calling and visibility into communication data.
Best for. Globally distributed teams with consistent international calling needs and operations leaders who need analytics dashboards to track communication performance.
Key capabilities. Unlimited calling in 50 countries, unlimited auto attendants, AI chat analysis, interaction analytics, SMS/MMS, and video conferencing.
Pricing. Quote-based; contact GoTo directly.
Pros.
Cons.
Lark (from ByteDance) is a genuinely ambitious all-in-one platform that combines chat, video, docs, spreadsheets, project management, and email in a single interface. For teams looking to consolidate multiple tools, it's worth serious evaluation.
Best for. Teams that want to reduce SaaS sprawl by moving chat, video, documents, and project tracking into one platform, and teams with significant Asia-Pacific operations.
Key capabilities. Integrated docs and spreadsheets (no Google Drive or Notion needed separately), group video with translation, project management, approval workflows, and a generous free tier.
Pricing. Free tier available; paid plans typically start around $12 per user per month.
Pros.
Cons.
Rocket.Chat is the leading open-source team messaging platform, designed for organizations that need full control over their data. It can be self-hosted on your own infrastructure or deployed via Rocket.Chat's cloud.
Best for. Organizations with strict data sovereignty requirements, government entities, regulated industries, and developer teams that want to customize or extend their communication platform.
Key capabilities. Open-source core with full source code access, self-hosted or cloud deployment, end-to-end encrypted messaging, omnichannel customer support capabilities, and an extensive marketplace of community integrations.
Pricing. Free for self-hosted deployments. Cloud plans start around $4 per user per month.
Pros.
Cons.
Chanty is a lightweight team messaging tool designed for simplicity. It doesn't try to compete with Teams on capability depth. Instead, it offers a clean, fast messaging experience at a price point that's hard to argue with.
Best for. Small teams (under 50 people) that need basic messaging, task management, and video calls without enterprise overhead or per-seat pricing pressure.
Key capabilities. Team chat, threads, task management, screen sharing, and audio/video calls.
Pricing. Free for teams up to 10 users; around $3 per user per month for larger teams.
Pros.
Cons.
Mattermost is an open-source, self-hosted collaboration platform built specifically for technical and regulated teams. It's widely used in defense, intelligence, healthcare, and financial services where data residency is non-negotiable and audit trails are required.
Best for. DevOps teams, regulated industries (HIPAA, FedRAMP, IL4/IL5 compliance needs), and organizations that need to integrate communication directly into developer workflows.
Key capabilities. Self-hosted deployment on any infrastructure, deep developer integrations (GitHub, GitLab, Jira, Jenkins, PagerDuty), custom playbooks for incident response, granular admin controls, and compliance-grade audit logging.
Pricing. Free self-hosted (limited). Team plan around $10 per user per month. Enterprise pricing available.
Pros.
Cons.
Direct Routing is a Microsoft-supported capability that lets organizations connect Teams to the PSTN through a certified third-party telephony provider instead of, or in addition to, Microsoft's own Calling Plans. Instead of paying Microsoft per user per month for calling access, you route calls through a Session Border Controller (SBC) operated by a specialist provider.
The practical effect: you keep Teams exactly as it is for chat, video, and collaboration. Your users never notice a change. But the phone bill looks very different.
When Direct Routing beats replacing Teams entirely:
For a deeper look at what Direct Routing involves technically and how to choose a provider, the Microsoft Teams Direct Routing provider page on PBX.IM covers configuration requirements, SBC certification, and what to expect during setup.
If your Teams phone experience isn't working but Teams itself is, this is almost always the right fix.
The right answer depends on what problem you're actually solving. Here's a plain-language decision guide.
If your pain is voice cost or missing global DIDs: You don't need a Teams alternative. You need PBX.IM Direct Routing. Keep Teams, swap the calling layer, and cut 30–60% off your phone bill while gaining coverage in 190+ countries.
If your team is not in the Microsoft 365 ecosystem and UX is the issue: Slack is the most natural move for messaging-first teams. Zoom Workplace works if video is the primary medium. For Google Workspace shops, Google Chat is already waiting.
If you need open-source or self-hosted for data sovereignty: Rocket.Chat (messaging-first) or Mattermost (DevOps and compliance-heavy environments) are the strongest options.
If you want to consolidate multiple tools into one platform: Lark covers more ground than any single alternative on this list, though data residency and US ecosystem depth require consideration.
If you're a large enterprise needing compliance and scale: RingCentral or Webex are the most mature choices with the compliance certifications to match.
If you're a small team on a tight budget: Chanty gets you the basics at near-zero cost. Rocket.Chat self-hosted gets you more capability for free if you have the technical capacity to run it.
The most common mistake organizations make is replacing Teams entirely when the actual problem is a $15/user/month phone add-on. Diagnose the pain first. The solution follows from that.
PBX.IM offers a free account for one seat, making it a strong option for small teams or businesses that want to trial enterprise-grade Direct Routing and cloud PBX capabilities before committing. Google Chat is the strongest free option for teams already on Google Workspace. Chanty's free plan supports up to 10 users with messaging and basic video. Rocket.Chat and Mattermost are both free to self-host, though they require infrastructure to run. Lark also has a free tier with a surprisingly broad capability set including integrated documents and project management.
Rocket.Chat and Mattermost are the two leading open-source options. Rocket.Chat is broader, covering messaging, video, and omnichannel customer support, and suits teams that want a self-hosted chat platform with customization flexibility. Mattermost is narrower and more technically rigorous, built specifically for DevOps and regulated environments where audit trails, air-gap deployment, and deep CI/CD integrations matter.
PBX.IM is enterprise-ready, with a Microsoft-certified SBC, SOC 2-grade infrastructure, global PSTN coverage across 190+ countries, and the admin controls and call-handling capabilities that enterprise voice deployments require. RingCentral and Webex are the most mature full-suite enterprise alternatives. RingCentral offers a 99.999% uptime SLA, full UCaaS in one platform, and enterprise-grade compliance. Webex covers end-to-end encrypted video (a gap in Teams), large-format meetings, and a strong AI capability set. Zoom Workplace is also competitive at enterprise scale, particularly for video-heavy workflows.
Successful Teams migration has four phases.
If you're moving your voice layer to PBX.IM specifically, contact PBX.IM support for guided onboarding and number porting assistance.
PBX.IM connects Teams to the global PSTN across 190+ countries with lower per-minute rates, IVR, call queues, and full number porting.
