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Comparison · Meetings
SRS vs 3CX
A side-by-side editorial comparison of SRS and 3CX — release velocity, themes, recent moves, and the top alternatives to consider.
SRS vs 3CX: at a glance
What is SRS?
SRS 6.0 went stable by making H.265 work everywhere, not just in one protocol.
SRS shipped 6.0 release 0 in December 2025, promoting the 6.0 line to stable in place of 5.0 at roughly 170,000 lines of code. The headline is H.265/HEVC carried across RTMP, HTTP-FLV, HLS, HTTP-TS and SRT, with DVR recording to both MP4 and FLV. WebRTC gained WHEP for playback, stereo Opus over SDP and a configurable AAC-to-Opus bitrate; SRT moved to libsrt 1.5.3 with round-trip latency reported down to 200ms.
What is 3CX?
3CX keeps bolting AI agent plumbing onto a phone system that still ships firmware.
The feed mixes genuine release notes with channel marketing. On the product side, V20 Update 9 sends AI agent call details, summaries, and transcripts by email; AI agents can now draw on Markdown knowledge sources; the Windows softphone hit V5.7 with one-click migration; and the SBC has a beta with Debian 13 support. Alongside those sit award announcements, forum contributor recognition, and a hosting discount tied to the AI Edition.
SRS vs 3CX: editorial side-by-side
SRS
0.0MEETINGS
SRS 6.0 went stable by making H.265 work everywhere, not just in one protocol.
◆ Current state
SRS shipped 6.0 release 0 in December 2025, promoting the 6.0 line to stable in place of 5.0 at roughly 170,000 lines of code. The headline is H.265/HEVC carried across RTMP, HTTP-FLV, HLS, HTTP-TS and SRT, with DVR recording to both MP4 and FLV. WebRTC gained WHEP for playback, stereo Opus over SDP and a configurable AAC-to-Opus bitrate; SRT moved to libsrt 1.5.3 with round-trip latency reported down to 200ms.
◆ Where it's heading
The eighteen months of alpha and beta tags before release 0 were overwhelmingly crash, leak and iterator fixes — smart-pointer conversions, use-after-free repairs in the HLS and bridge paths, RTC-to-RTMP stability. That is the signature of a project stabilizing an existing engine rather than extending it, with the codec work landing at the end. SRS is positioning as the self-hosted streaming server that speaks every ingest and egress protocol in one binary.
◆ Prediction
With 6.0 now the stable line, the pattern from the 5.0 era points to a run of 6.0 patch releases carrying fixes rather than features. The entries give no indication of what the next major line targets.
3CX
5.0MEETINGS
3CX keeps bolting AI agent plumbing onto a phone system that still ships firmware.
◆ Current state
The feed mixes genuine release notes with channel marketing. On the product side, V20 Update 9 sends AI agent call details, summaries, and transcripts by email; AI agents can now draw on Markdown knowledge sources; the Windows softphone hit V5.7 with one-click migration; and the SBC has a beta with Debian 13 support. Alongside those sit award announcements, forum contributor recognition, and a hosting discount tied to the AI Edition.
◆ Where it's heading
3CX is layering AI agents onto a traditional PBX without abandoning the parts that make it a PBX — firmware for Yealink and Fanvil handsets ships in the same window as agent knowledge-base tooling. The AI work so far is practical rather than ambitious: give the agent better source material, and get its output in front of humans by email. Pricing promotions specifically naming the AI Edition suggest the agent capability is what the commercial motion is now organized around.
◆ Prediction
Expect further V20 updates deepening the AI agent's knowledge sources and handoff to human extensions, with the SBC beta reaching general availability as the Debian 13 work settles.
Alternatives to SRS and 3CX
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 SRS or 3CX.
Switcher Studio
Switcher Studio's feed is creator-education marketing; the multi-cam app's actual releases are invisible here.
Mux
Mux made its AI video workflows programmable — Robots moves from a dashboard feature to a pipeline primitive.
Panopto
Panopto is moving lecture capture into corporate L&D, starting with Workday.
JW Player
JW Player is building a short-form surface on top of its long-form video stack.
Webex
Webex's feed is conference marketing with two real GAs buried inside it.
Recent activity from SRS and 3CX
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d ago3CXEmail Transcripts from AI Agents in V20 Update 9
- 2d ago3CXWindows Softphone V5.7: One-Click Desktop App Migration
- 6d ago3CXIP Phone Firmware Updates
- 7d ago3CXImprove AI Agent Answers With Markdown (.md) Knowledge Sources
- 12d ago3CX3CX Named SourceForge Category Leader for Summer 2026
- 13d ago3CX3CX SBC Update BETA Including Debian 13 Support
- 7mo agoSRSSRS 6.0 goes stable with H.265 across RTMP, HLS, TS and SRT ⚡
- 8mo agoSRS6.0-b3: use-after-free and HLS cleanup fixes
- 9mo agoSRS6.0-b2: configurable SRT stream IDs and a WHIP transcoding fix
- 10mo agoSRS6.0-b1: RTC crash fixes, Windows binary dropped
- 11mo agoSRS6.0-b0: WebRTC recording sync fixed, forwarding configurable by env var
- 1y agoSRS6.0-a2: first H.265 DVR support, plus leak fixes
Frequently asked questions
What is the difference between SRS and 3CX?
They serve adjacent needs but don't currently overlap on shipped themes. 3CX 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 SRS better than 3CX?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. 3CX 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 SRS?
Top SRS alternatives in Meetings are ranked by recent ship velocity. Browse the "SRS alternatives" section above for the current picks, or visit /alternatives/srs for the full list with editorial commentary on each.
What are the best alternatives to 3CX?
Top 3CX alternatives in Meetings are ranked by recent ship velocity. Browse the "3CX alternatives" section above for the current picks, or visit /alternatives/3cx for the full list with editorial commentary on each.