3CX is opening the PBX to agents while its feed fills with awards and academy news
OpenSIPS alternatives
The best OpenSIPS alternatives in video conferencing tools, ranked by Sparkpulse's velocity_score.
Updated Oct 4, 2026
Looking for the best alternatives to OpenSIPS? 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, OpenSIPS 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 OpenSIPS
OpenSIPS 4.0 is in release-candidate testing, with two RCs a month apart.
OpenSIPS, the open-source SIP proxy and server, has two tracked entries: 4.0.0-rc1 in May and 4.0.0-rc2 in June 2026. Both release notes are one-line announcements, so the specific 4.0 changes are not visible in the feed.
Velocity 0.0 · Last update 2h ago
Top 12 alternatives to OpenSIPS
Ranked by recent ship velocity. Tap any card for the full editorial breakdown, or pivot to a head-to-head.
Fourwaves is polishing participant messaging after a pricing reset.
Element Call drops MatrixRTC legacy mode entirely, betting the entire call stack on the multi-SFU protocol.
Nextcloud Talk v25 adds classified conversations and an owner role, targeting regulated enterprise deployments.
Switcher Studio adds Instant Replay — a live broadcasting capability that finally closes the gap with dedicated sports streaming rigs.
Wowza is rebuilding around one idea: run computer vision inside the streaming pipeline.
rtpengine backports the same DTLS and socket fixes across four maintenance branches at once.
JW Player is rebuilding its VOD pipeline around CMAF, one workflow fix at a time
Restream's webinars get a registration page and a CSV of leads, turning broadcasts into a pipeline
BigBlueButton 4.0 rc.4 is a security-only release as the LiveKit stack hardens.
HOMER 11 keeps patching its tiered storage while opening SIP search to AI agents over MCP
Nextcloud Talk Desktop 2.3.2 ships Talk v25 stable with E2EE call audio fix
OpenSIPS 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.
| Product | Velocity | Sparks · 30d | Focus areas | Latest release |
|---|---|---|---|---|
| OpenSIPS (baseline) | 0.0 | 0 | sipvoipmajor-release | — |
| 3CX | 7.5 | 0 | voipself-hostedmcp | 3CX MCP Server: Manage Your PBX With AI |
| Fourwaves | 6.3 | 0 | event-managementnotificationsmessaging | — |
| Element Call | 6.3 | 0 | matrixwebrtcdecentralized | MatrixRTC legacy mode removed — all calls now run on the new protocol |
| Nextcloud Talk | 6.3 | 0 | collaborationenterprise-messagingcompliance | Nextcloud Talk v25 alpha: classified conversations, owner role, global search |
| Switcher Studio | 6.3 | 0 | live-streamingsports-broadcastinginstant-replay | Your Best Play, Twice: Instant Replay for Switcher Is Live |
| Wowza | 6.3 | 0 | video-intelligencecomputer-visionsynthetic-media | How NVIDIA And Wowza Are Detecting Synthetic Video In Live Streams |
| rtpengine | 5.0 | 0 | webrtcmedia-proxydtls | — |
| JW Player | 5.0 | 0 | video streamingcmafad analytics | — |
| Restream | 5.0 | 0 | live streamingwebinarslead capture | — |
| BigBlueButton | 5.0 | 0 | video-conferencingopen-sourcelivekit | BigBlueButton 4.0 rc.1 completes the LiveKit audio migration |
| HOMER | 5.0 | 0 | voip-observabilitysiptiered-storage | — |
| Nextcloud Talk Desktop | 5.0 | 0 | video-callsopen-sourcedesktop-app | — |
The 12 best OpenSIPS 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 OpenSIPS leans on sip, voip and major release, 3CX focuses on voip, self hosted and mcp.
3CX and OpenSIPS 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 OpenSIPS leans on sip, voip and major release, Fourwaves focuses on event management, notifications and messaging.
Fourwaves and OpenSIPS have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full Fourwaves trajectory → · Compare OpenSIPS vs Fourwaves →
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 OpenSIPS leans on sip, voip and major release, Element Call focuses on matrix, webrtc and decentralized.
Element Call and OpenSIPS have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full Element Call trajectory → · Compare OpenSIPS vs Element Call →
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 OpenSIPS leans on sip, voip and major release, Nextcloud Talk focuses on collaboration, enterprise messaging and compliance.
Nextcloud Talk and OpenSIPS have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full Nextcloud Talk trajectory → · Compare OpenSIPS vs Nextcloud Talk →
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 OpenSIPS leans on sip, voip and major release, Switcher Studio focuses on live streaming, sports broadcasting and instant replay.
Switcher Studio and OpenSIPS have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full Switcher Studio trajectory → · Compare OpenSIPS vs Switcher Studio →
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 OpenSIPS leans on sip, voip and major release, Wowza focuses on video intelligence, computer vision and synthetic media.
Wowza and OpenSIPS 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 OpenSIPS leans on sip, voip and major release, rtpengine focuses on webrtc, media proxy and dtls.
rtpengine and OpenSIPS have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full rtpengine trajectory → · Compare OpenSIPS vs rtpengine →
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 OpenSIPS leans on sip, voip and major release, JW Player focuses on video streaming, cmaf and ad analytics.
JW Player and OpenSIPS have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full JW Player trajectory → · Compare OpenSIPS vs JW Player →
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 OpenSIPS leans on sip, voip and major release, Restream focuses on live streaming, webinars and lead capture.
Restream and OpenSIPS 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 OpenSIPS leans on sip, voip and major release, BigBlueButton focuses on video conferencing, open source and livekit.
BigBlueButton and OpenSIPS have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full BigBlueButton trajectory → · Compare OpenSIPS vs BigBlueButton →
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 OpenSIPS leans on sip, voip and major release, HOMER focuses on voip observability, sip and tiered storage.
HOMER and OpenSIPS 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 OpenSIPS leans on sip, voip and major release, Nextcloud Talk Desktop focuses on video calls, open source and desktop app.
Nextcloud Talk Desktop and OpenSIPS have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full Nextcloud Talk Desktop trajectory → · Compare OpenSIPS vs Nextcloud Talk Desktop →
Frequently asked questions
What are the best alternatives to OpenSIPS?
The top OpenSIPS 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 OpenSIPS alternatives ranked?
Alternatives are ranked by Sparkpulse's velocity_score — release cadence + 30-day spark count + sector-relative ship rate.
Can I compare OpenSIPS directly with one of these alternatives?
Yes — every card has a "Compare with OpenSIPS" link to a side-by-side /compare page.