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Kamailio alternatives

The best Kamailio alternatives in video conferencing tools, ranked by Sparkpulse's velocity_score.

Updated Oct 4, 2026

Looking for the best alternatives to Kamailio? Sparkpulse tracks and ranks 12 alternatives in video conferencing tools by shipping velocity — how frequently each ships meaningful updates, verified from official changelogs. For reference, Kamailio shipped 0 meaningful updates in the last 30 days and carries a velocity score of 0.0 out of 10 in 2026. The alternatives below are ranked the same way, so you're comparing real release momentum, not marketing claims.

About Kamailio

Kamailio's tracked feed shows one thing: a quiet, schema-stable 5.8 maintenance release.

Kamailio is a mature open-source SIP server, and the only release on record here is v5.8.7, a maintenance drop on the 5.8 stable branch. It carries fixes since 5.8.6 with no database schema or configuration language changes, and upgrading is strongly recommended for 5.8.x deployments.

Velocity 0.0 · Last update 2h ago

Read the full Kamailio trajectory →

Top 12 alternatives to Kamailio

Ranked by recent ship velocity. Tap any card for the full editorial breakdown, or pivot to a head-to-head.

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Kamailio vs alternatives — shipping velocity at a glance

Velocity score (0–10) and meaningful releases shipped in the last 30 days, from official changelogs. Higher = shipping faster.

ProductVelocitySparks · 30dFocus areasLatest release
Kamailio (baseline)0.00sipvoipmaintenance—
3CX7.50voipself-hostedmcp3CX MCP Server: Manage Your PBX With AI
Fourwaves6.30event-managementnotificationsmessaging—
Element Call6.30matrixwebrtcdecentralizedMatrixRTC legacy mode removed — all calls now run on the new protocol
Nextcloud Talk6.30collaborationenterprise-messagingcomplianceNextcloud Talk v25 alpha: classified conversations, owner role, global search
Switcher Studio6.30live-streamingsports-broadcastinginstant-replayYour Best Play, Twice: Instant Replay for Switcher Is Live
Wowza6.30video-intelligencecomputer-visionsynthetic-mediaHow NVIDIA And Wowza Are Detecting Synthetic Video In Live Streams
rtpengine5.00webrtcmedia-proxydtls—
JW Player5.00video streamingcmafad analytics—
Restream5.00live streamingwebinarslead capture—
BigBlueButton5.00video-conferencingopen-sourcelivekitBigBlueButton 4.0 rc.1 completes the LiveKit audio migration
HOMER5.00voip-observabilitysiptiered-storage—
Nextcloud Talk Desktop5.00video-callsopen-sourcedesktop-app—

The 12 best Kamailio alternatives, in depth

1. 3CX · velocity 7.5

3CX is opening the PBX to agents while its feed fills with awards and academy news.

Its velocity score of 7.5/10 reflects longer-term release cadence; its most recent meaningful update was “3CX MCP Server: Manage Your PBX With AI”.

Where Kamailio leans on sip, voip and maintenance, 3CX focuses on voip, self hosted and mcp.

3CX and Kamailio have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

2. Fourwaves · velocity 6.3

Fourwaves is polishing participant messaging after a pricing reset.

Its velocity score of 6.3/10 reflects longer-term release cadence.

Where Kamailio leans on sip, voip and maintenance, Fourwaves focuses on event management, notifications and messaging.

Fourwaves and Kamailio have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

3. Element Call · velocity 6.3

Element Call drops MatrixRTC legacy mode entirely, betting the entire call stack on the multi-SFU protocol.

Its velocity score of 6.3/10 reflects longer-term release cadence; its most recent meaningful update was “MatrixRTC legacy mode removed — all calls now run on the new protocol”.

Where Kamailio leans on sip, voip and maintenance, Element Call focuses on matrix, webrtc and decentralized.

Element Call and Kamailio have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

4. Nextcloud Talk · velocity 6.3

Nextcloud Talk v25 adds classified conversations and an owner role, targeting regulated enterprise deployments.

Its velocity score of 6.3/10 reflects longer-term release cadence; its most recent meaningful update was “Nextcloud Talk v25 alpha: classified conversations, owner role, global search”.

Where Kamailio leans on sip, voip and maintenance, Nextcloud Talk focuses on collaboration, enterprise messaging and compliance.

Nextcloud Talk and Kamailio have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

5. Switcher Studio · velocity 6.3

Switcher Studio adds Instant Replay — a live broadcasting capability that finally closes the gap with dedicated sports streaming rigs.

Its velocity score of 6.3/10 reflects longer-term release cadence; its most recent meaningful update was “Your Best Play, Twice: Instant Replay for Switcher Is Live”.

Where Kamailio leans on sip, voip and maintenance, Switcher Studio focuses on live streaming, sports broadcasting and instant replay.

Switcher Studio and Kamailio have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

6. Wowza · velocity 6.3

Wowza is rebuilding around one idea: run computer vision inside the streaming pipeline.

Its velocity score of 6.3/10 reflects longer-term release cadence; its most recent meaningful update was “How NVIDIA And Wowza Are Detecting Synthetic Video In Live Streams”.

Where Kamailio leans on sip, voip and maintenance, Wowza focuses on video intelligence, computer vision and synthetic media.

Wowza and Kamailio have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

7. rtpengine · velocity 5.0

Rtpengine backports the same DTLS and socket fixes across four maintenance branches at once.

Its velocity score of 5.0/10 reflects longer-term release cadence.

Where Kamailio leans on sip, voip and maintenance, rtpengine focuses on webrtc, media proxy and dtls.

rtpengine and Kamailio have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

8. JW Player · velocity 5.0

JW Player is rebuilding its VOD pipeline around CMAF, one workflow fix at a time.

Its velocity score of 5.0/10 reflects longer-term release cadence.

Where Kamailio leans on sip, voip and maintenance, JW Player focuses on video streaming, cmaf and ad analytics.

JW Player and Kamailio have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

9. Restream · velocity 5.0

Restream's webinars get a registration page and a CSV of leads, turning broadcasts into a pipeline.

Its velocity score of 5.0/10 reflects longer-term release cadence.

Where Kamailio leans on sip, voip and maintenance, Restream focuses on live streaming, webinars and lead capture.

Restream and Kamailio have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

10. BigBlueButton · velocity 5.0

BigBlueButton 4.0 rc.4 is a security-only release as the LiveKit stack hardens.

Its velocity score of 5.0/10 reflects longer-term release cadence; its most recent meaningful update was “BigBlueButton 4.0 rc.1 completes the LiveKit audio migration”.

Where Kamailio leans on sip, voip and maintenance, BigBlueButton focuses on video conferencing, open source and livekit.

BigBlueButton and Kamailio have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

11. HOMER · velocity 5.0

HOMER 11 keeps patching its tiered storage while opening SIP search to AI agents over MCP.

Its velocity score of 5.0/10 reflects longer-term release cadence.

Where Kamailio leans on sip, voip and maintenance, HOMER focuses on voip observability, sip and tiered storage.

HOMER and Kamailio have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

12. Nextcloud Talk Desktop · velocity 5.0

Nextcloud Talk Desktop 2.3.2 ships Talk v25 stable with E2EE call audio fix.

Its velocity score of 5.0/10 reflects longer-term release cadence.

Where Kamailio leans on sip, voip and maintenance, Nextcloud Talk Desktop focuses on video calls, open source and desktop app.

Nextcloud Talk Desktop and Kamailio have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

Frequently asked questions

What are the best alternatives to Kamailio?

The top Kamailio alternatives we currently track in video conferencing tools are 3CX, Fourwaves, Element Call, Nextcloud Talk, Switcher Studio, ranked by recent ship velocity.

How is this list of Kamailio alternatives ranked?

Alternatives are ranked by Sparkpulse's velocity_score — release cadence + 30-day spark count + sector-relative ship rate.

Can I compare Kamailio directly with one of these alternatives?

Yes — every card has a "Compare with Kamailio" link to a side-by-side /compare page.