rtpengine
rtpengine backports the same DTLS and socket fixes across four maintenance branches at once.
Comparison · Meetings
BigBlueButton vs Kamailio
A side-by-side editorial comparison of BigBlueButton and Kamailio — release velocity, themes, recent moves, and the top alternatives to consider.
BigBlueButton vs Kamailio: at a glance
What is BigBlueButton?
BigBlueButton 4.0 rc.4 is a security-only release as the LiveKit stack hardens.
BigBlueButton 4.0.0-rc.4 contains security fixes only, including a command injection through destination_number, unauthenticated access to a meeting's audio conference and shared notes reachable by non-members. It follows rc.2, also security-only, and rc.3, which focused on LiveKit reconnection and test stability. The project still recommends 3.0.x for production.
What is 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.
BigBlueButton vs Kamailio: editorial side-by-side
BigBlueButton
5.0MEETINGS
BigBlueButton 4.0 rc.4 is a security-only release as the LiveKit stack hardens.
◆ Current state
BigBlueButton 4.0.0-rc.4 contains security fixes only, including a command injection through destination_number, unauthenticated access to a meeting's audio conference and shared notes reachable by non-members. It follows rc.2, also security-only, and rc.3, which focused on LiveKit reconnection and test stability. The project still recommends 3.0.x for production.
◆ Where it's heading
The 4.0 cycle has moved from architecture (LiveKit as the only media path, BlockNote notes, Java 21) to hardening. Two security-only candidates in a month show the new LiveKit audio and notes surfaces are getting close scrutiny before GA.
◆ Prediction
Expect 4.0.0 GA once the release-candidate cadence quiets, likely preceded by at least one more rc. The steady flow of advisories makes the exact timing unclear.
Kamailio
0.0MEETINGS
Kamailio's tracked feed shows one thing: a quiet, schema-stable 5.8 maintenance release.
◆ Current state
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.
◆ Where it's heading
With a single maintenance entry, the visible pattern is conservative branch upkeep: fixes land without forcing operators to touch configs or schemas. The feed does not yet show new feature branches or capability shifts.
◆ Prediction
One entry is too little to call a next move; the only grounded expectation is further 5.8.x point releases on the same no-migration terms.
Alternatives to BigBlueButton and Kamailio
Other Meetings products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either BigBlueButton or Kamailio.
coturn
coturn ships three minor versions in six weeks, packaged as Docker images on three registries.
OpenSIPS
OpenSIPS 4.0 is in release-candidate testing, with two RCs a month apart.
JW Player
JW Player is rebuilding its VOD pipeline around CMAF, one workflow fix at a time
Restream
Restream's webinars get a registration page and a CSV of leads, turning broadcasts into a pipeline
Fourwaves
Fourwaves is polishing participant messaging after a pricing reset.
See all BigBlueButton alternatives → · See all Kamailio alternatives →
Recent activity from BigBlueButton and Kamailio
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2d agoBigBlueButtonBigBlueButton 4.0 rc.4 patches audio and notes security flaws
- 22d agoBigBlueButtonBigBlueButton 4.0 rc.3 hardens LiveKit reconnection
- 23d agoBigBlueButtonBigBlueButton 4.0 rc.2 fixes cross-meeting security flaws
- 1mo agoBigBlueButtonBigBlueButton 4.0 rc.1 completes the LiveKit audio migration ⚡
- 1mo agoBigBlueButtonBigBlueButton 4.0 beta.5 overhauls mobile layout
- 2mo agoBigBlueButtonBigBlueButton 4.0.0-beta.4 ⚡
- 8mo agoKamailioKamailio 5.8.7: maintenance fixes, no schema or config changes
Frequently asked questions
What is the difference between BigBlueButton and Kamailio?
They serve adjacent needs but don't currently overlap on shipped themes. BigBlueButton is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is BigBlueButton better than Kamailio?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. BigBlueButton is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Meetings products to evaluate alongside.
What are the best alternatives to BigBlueButton?
Top BigBlueButton alternatives in Meetings are ranked by recent ship velocity. Browse the "BigBlueButton alternatives" section above for the current picks, or visit /alternatives/bigbluebutton for the full list with editorial commentary on each.
What are the best alternatives to Kamailio?
Top Kamailio alternatives in Meetings are ranked by recent ship velocity. Browse the "Kamailio alternatives" section above for the current picks, or visit /alternatives/kamailio for the full list with editorial commentary on each.