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Free RingCentral RingEX alternatives: 4 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rank

4 of the 7 RingCentral RingEX alternatives we track can be used for free (free, open source, or with a free plan). FusionPBX, Microsoft Teams and Zoom Workplace rank highest, with facts last verified Nov 8, 2026.

Quick comparison

#AppPricingVerified priceOpen sourcePlatformsVerified factsScore
1FuFusionPBXOpen source—NoLinux, Self-hosted4 of 453.6
2Microsoft Teams logoMicrosoft TeamsFree plan + paid—NoWeb, Windows, macOS +20 of 352.3
3Zoom Workplace logoZoom WorkplaceFree plan + paid$14.16 per user/month billed annually (Pro)NoWeb, macOS, Windows +36 of 651.2
4Google Voice logoGoogle VoiceFree plan + paid$10 per user/month (Starter)NoWeb, iOS, Android7 of 742.3
  1. Fu

    1. FusionPBXTop pick

    Best for: VoIP resellers and IT teams who want a self-hosted, multi-tenant PBX without per-user licences.

    Open sourceLinux, Self-hosted

    53.6

    score / 100

    Why switch from RingCentral RingEX

    A free, open-source PBX you host yourself on FreeSWITCH, for teams that want to own their phone system and pick their own SIP trunks.

    Pros

    • Full web admin over FreeSWITCH, with direct CLI access still available
    • Multi-tenant by design, suited to hosting phone systems for many customers
    • Long feature list including queues, IVRs, recording and phone provisioning

    Cons

    • Self-hosting means you handle security, firewalls and upgrades
    • No official softphone apps; relies on third-party SIP clients
    • Admin interface is dense and dated compared with commercial systems
    Visit FusionPBX Details and reviews
    How this score is calculated
    Editorial fit ×0.357
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is FusionPBX a good RingCentral RingEX alternative?

    Verified facts

    4 of 4 verified
    Built on
    FreeSWITCH
    Checked Nov 8, 2026docs.fusionpbx.com(opens source in a new tab)
    Recommended OS
    Debian and Ubuntu
    Checked Nov 8, 2026docs.fusionpbx.com(opens source in a new tab)
    Multi-tenant
    Yes
    Checked Nov 8, 2026docs.fusionpbx.com(opens source in a new tab)
    Voicemail to email
    Yes
    Checked Nov 8, 2026docs.fusionpbx.com(opens source in a new tab)
  2. Microsoft Teams logo

    2. Microsoft Teams

    Best for: Organizations already using Microsoft 365

    Free plan + paidWeb, Windows, macOS, iOS, Android

    52.3

    score / 100

    Why switch from RingCentral RingEX

    Teams Phone adds business calling to the Teams app your company may already use for chat and meetings.

    Pros

    • Included in many Microsoft 365 plans
    • Strong meetings and calling
    • Office file co-editing

    Cons

    • Interface can feel cluttered
    • Best experience requires Microsoft 365
    Visit Microsoft Teams Details and reviews
    How this score is calculated
    Editorial fit ×0.338
    Reviews ×0.363
    Clicks (90 days) ×0.15100
    Freshness ×0.1515
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Microsoft Teams a good RingCentral RingEX alternative?

    Verified facts

    0 of 3 verified
    Free version
    Yes
    Not checked yetmicrosoft.com(opens source in a new tab)
    Meetings
    Video meetings and webinars
    Not checked yetmicrosoft.com(opens source in a new tab)
    Microsoft 365 integration
    Yes
    Not checked yetmicrosoft.com(opens source in a new tab)
  3. Zoom Workplace logo

    3. Zoom Workplace

    Best for: Organisations that want a familiar, reliable meeting tool guests already know

    Free plan + paidWeb, macOS, Windows, Linux, iOS, Android

    51.2

    score / 100

    Why switch from RingCentral RingEX

    Pairs business phone with the Zoom meetings many teams already use.

    Pros

    • Reliable call quality, even on poor connections
    • Apps for every desktop and mobile platform
    • Breakout rooms, webinars and large meetings in one ecosystem

    Cons

    • Free plan cuts group meetings at 40 minutes
    • Webinars, phone and rooms cost extra
    • The app has grown cluttered with non-meeting features
    Visit Zoom Workplace Details and reviews
    How this score is calculated
    Editorial fit ×0.341
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Zoom Workplace a good RingCentral RingEX alternative?

    Verified facts

    6 of 6 verified
    Free plan
    Yes, 40 minutes per meeting, 100 participants
    Checked Nov 8, 2026zoom.us(opens source in a new tab)
    Pro plan
    $16.99 per user/month billed monthly
    Checked Nov 8, 2026zoom.us(opens source in a new tab)
    Business plan
    $18.33 per user/month billed annually
    Checked Nov 8, 2026zoom.us(opens source in a new tab)
    Pro meeting length
    Up to 30 hours
    Checked Nov 8, 2026zoom.us(opens source in a new tab)
    Desktop apps
    Windows, macOS and Linux
    Checked Nov 8, 2026zoom.us(opens source in a new tab)
    Starting price
    $14.16 per user/month billed annually (Pro)
    Checked Nov 8, 2026zoom.us(opens source in a new tab)
  4. Google Voice logo

    4. Google Voice

    Best for: US individuals and Google Workspace teams who want a cheap second number across phone and browser

    Free plan + paidWeb, iOS, Android

    42.3

    score / 100

    Why switch from RingCentral RingEX

    Simpler and cheaper for small teams on Google Workspace that don't need contact-centre features.

    Pros

    • Personal version has almost all US and Canada calls at no cost
    • Voicemail transcripts land in your inbox and are searchable
    • Works in the browser, on Android and iOS, and on supported desk phones
    • Business tiers plug into Google Meet, Calendar and the Workspace admin console

    Cons

    • No toll-free 1-800 numbers
    • Business plans require a Google Workspace subscription
    • Picking your own number is limited to US users
    Visit Google Voice Compare with RingCentral RingEXDetails and reviews
    How this score is calculated
    Editorial fit ×0.312
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Google Voice a good RingCentral RingEX alternative?

    Verified facts

    7 of 7 verified
    Free calls
    Most calls to the US and Canada (personal)
    Checked Nov 8, 2026support.google.com(opens source in a new tab)
    Starting price
    $10 per user/month (Starter)
    Checked Nov 7, 2026workspace.google.com(opens source in a new tab)
    Voicemail transcription
    Yes
    Checked Nov 8, 2026support.google.com(opens source in a new tab)
    Toll-free numbers
    Not offered
    Checked Nov 8, 2026support.google.com(opens source in a new tab)
    Platforms
    Web, Android, iOS
    Checked Nov 8, 2026workspace.google.com(opens source in a new tab)
    Standard plan
    $20 per user/month
    Checked Nov 7, 2026workspace.google.com(opens source in a new tab)
    Premier plan
    $30 per user/month
    Checked Nov 7, 2026workspace.google.com(opens source in a new tab)