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FreeSWITCH vs rtpengine

A side-by-side editorial comparison of FreeSWITCH and rtpengine — release velocity, themes, recent moves, and the top alternatives to consider.

Shared themes:voip

FreeSWITCH vs rtpengine: at a glance

FeatureFreeSWITCHrtpengine
SectorMeetingsMeetings
Velocity score5.05.0
Sparks · 30d00
Top themesvoip, security-hardening, platform-support, sipwebrtc, media-proxy, voip, backports
Last editorial update2mo ago9d ago
WebsiteVisit →Visit →

What is FreeSWITCH?

FreeSWITCH is shipping security releases on a cadence it never used to keep.

Three releases in four months after years of near-silence. 1.11.3 is a security and stability cut that drops Debian 11 Bullseye and gates the chat API proto in mod_sofia and mod_verto; 1.11.2 brought an interface allowlist and stricter DTLS/STUN validation; 1.11.1 added hot TLS certificate reloads. The project is treating the telephony attack surface as the main work.

Read the full FreeSWITCH trajectory →

What is rtpengine?

rtpengine opens the mr26.3 branch with a rollback message and leaner call state.

Sipwise's rtpengine media proxy opened a new mr26.3 branch on October 19. Its first build, mr26.3.1.1, carries everything from mr26.2.1.5 plus a rollback NG control message, relaxed loop detection for duplicate packets arriving over a second apart or from endpoints no longer local, ICE agent teardown when a peer drops ICE, inject-audio mixing fixes, and a long run of "lightweight string" refactors across call IDs, tags, SDP and recording fields. Three days earlier, a hardening batch went to four branches, followed by compile-fix releases.

Read the full rtpengine trajectory →

FreeSWITCH vs rtpengine: editorial side-by-side

F
FreeSWITCH
MEETINGS
5.0

FreeSWITCH is shipping security releases on a cadence it never used to keep.

◆ Current state

Three releases in four months after years of near-silence. 1.11.3 is a security and stability cut that drops Debian 11 Bullseye and gates the chat API proto in mod_sofia and mod_verto; 1.11.2 brought an interface allowlist and stricter DTLS/STUN validation; 1.11.1 added hot TLS certificate reloads. The project is treating the telephony attack surface as the main work.

◆ Where it's heading

1.11.0 set the terms by deleting roughly thirty legacy modules and migrating to PCRE2, and everything since has been consolidation on the narrower tree: harden what remains, drop old platforms, gate optional protocols behind explicit configuration. Operators still on 1.10 are accumulating a larger migration the longer they wait, which is the practical effect of this cadence.

◆ Prediction

Expect the pattern to hold — further point releases on 1.11 weighted to security fixes and platform drops, with new capability arriving only where it serves TLS or SIP hardening.

R
rtpengine
MEETINGS
5.0

rtpengine opens the mr26.3 branch with a rollback message and leaner call state.

◆ Current state

Sipwise's rtpengine media proxy opened a new mr26.3 branch on October 19. Its first build, mr26.3.1.1, carries everything from mr26.2.1.5 plus a rollback NG control message, relaxed loop detection for duplicate packets arriving over a second apart or from endpoints no longer local, ICE agent teardown when a peer drops ICE, inject-audio mixing fixes, and a long run of "lightweight string" refactors across call IDs, tags, SDP and recording fields. Three days earlier, a hardening batch went to four branches, followed by compile-fix releases.

◆ Where it's heading

Development continues on two levels: correctness fixes backported across every supported branch, and newer work, such as the rollback message and memory-lighter call state, landing on the newest line. Opening mr26.3 adds a fifth maintained branch, so the backport load grows.

◆ Prediction

Expect mr26.3.1.x point builds and continued synchronized backports to mr12.5 through mr26.2. The entries don't show when older branches stop receiving fixes.

Alternatives to FreeSWITCH and rtpengine

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 FreeSWITCH or rtpengine.

See all FreeSWITCH alternatives → · See all rtpengine alternatives →

Recent activity from FreeSWITCH and rtpengine

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 9d agortpengineFirst mr26.3 build adds rollback message, lighter call state
  2. 12d agortpenginemr13.5.1.30 fixes a compile error in the previous build
  3. 12d agortpenginemr26.0.1.26 fixes a compile error in the previous build
  4. 12d agortpenginemr26.2.1.5 fixes a compile error in the previous build
  5. 12d agortpenginemr26.0.1.25: SDP state, DTX and parsing-safety fixes
  6. 12d agortpenginemr13.5.1.29 backports a runaway-recursion guard
  7. 2mo agoFreeSWITCH1.11.3 drops Debian 11 and gates the chat API proto
  8. 2mo agoFreeSWITCHInterface allowlist lands with a broad memory-safety sweep
  9. 5mo agoFreeSWITCHHot TLS certificate reloads and SIP 603 passthrough
  10. 5mo agoFreeSWITCHPCRE2, OpenSSL 3 on Windows, and thirty legacy modules removed ⚡
  11. 2y agoFreeSWITCHARM64 support arrives, Debian 10 and CentOS dropped
  12. 2y agoFreeSWITCHCoverity fixes and a sofia-sip version bump

Frequently asked questions

What is the difference between FreeSWITCH and rtpengine?

Both compete on the same themes — voip — within Meetings. FreeSWITCH and rtpengine are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is FreeSWITCH better than rtpengine?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. FreeSWITCH and rtpengine are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Meetings products to evaluate alongside.

What are the best alternatives to FreeSWITCH?

Top FreeSWITCH alternatives in Meetings are ranked by recent ship velocity. Browse the "FreeSWITCH alternatives" section above for the current picks, or visit /alternatives/freeswitch for the full list with editorial commentary on each.

What are the best alternatives to rtpengine?

Top rtpengine alternatives in Meetings are ranked by recent ship velocity. Browse the "rtpengine alternatives" section above for the current picks, or visit /alternatives/rtpengine for the full list with editorial commentary on each.