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Comparison · Meetings
CasparCG Server vs Asterisk
A side-by-side editorial comparison of CasparCG Server and Asterisk — release velocity, themes, recent moves, and the top alternatives to consider.
CasparCG Server vs Asterisk: at a glance
What is CasparCG Server?
Broadcast playout server reaches for HDR and sets a hardware floor to get there
CasparCG Server ships stable releases roughly once or twice a year, with long RC and beta runs ahead of each major. The 2.4 line delivered resolution and control-surface breadth — 8K and 4K DCI frames, custom resolutions, an interlaced mixer pipeline for field accuracy, AMCP command batching. The current 2.5.0 stable turns to colour and deployment: initial HDR support, ffmpeg 7.0, headless Linux operation, and Ubuntu deb packaging.
What is Asterisk?
Four parallel branches, one fix set — Asterisk's changelog is a backport ledger, not a feature list.
Asterisk maintains mainline 20, 22 and 23 branches alongside a certified track, and lands each fix set across all of them at once. The June 25 batch was a coordinated security release resolving roughly 20 advisories on every branch simultaneously. The August 7 batch opens the next cycle with release candidates carrying identical commit, author and issue counts across 23.5.0, 22.11.0 and 20.21.0.
CasparCG Server vs Asterisk: editorial side-by-side
CasparCG Server
0.0MEETINGS
Broadcast playout server reaches for HDR and sets a hardware floor to get there
◆ Current state
CasparCG Server ships stable releases roughly once or twice a year, with long RC and beta runs ahead of each major. The 2.4 line delivered resolution and control-surface breadth — 8K and 4K DCI frames, custom resolutions, an interlaced mixer pipeline for field accuracy, AMCP command batching. The current 2.5.0 stable turns to colour and deployment: initial HDR support, ffmpeg 7.0, headless Linux operation, and Ubuntu deb packaging.
◆ Where it's heading
The project is modernizing the parts of a playout server that determine whether it can sit in a current broadcast chain — colour pipeline, pixel format fidelity, and where it can run. That comes with an explicit hardware bargain: AVX2 is recommended now and becomes a requirement in 2.6, trading compatibility with pre-2013 CPUs for the instruction set HDR and the embedded Chrome renderer need. Alongside, Decklink and NDI integration keep absorbing steady fix work.
◆ Prediction
2.6 should complete the AVX2 transition and widen HDR beyond the current subset of producers and consumers, since the 2.5 notes describe HDR as deliberately partial.
Asterisk
5.0MEETINGS
Four parallel branches, one fix set — Asterisk's changelog is a backport ledger, not a feature list.
◆ Current state
Asterisk maintains mainline 20, 22 and 23 branches alongside a certified track, and lands each fix set across all of them at once. The June 25 batch was a coordinated security release resolving roughly 20 advisories on every branch simultaneously. The August 7 batch opens the next cycle with release candidates carrying identical commit, author and issue counts across 23.5.0, 22.11.0 and 20.21.0.
◆ Where it's heading
The visible output is backport discipline rather than feature development. Release notes carry counts, tags and advisory IDs but no feature text, so the changelog reads as a stability and security ledger for a mature telephony core. The certified track deliberately lags mainline and picks up a smaller subset of each cycle.
◆ Prediction
The three release candidates should promote to final within the project's usual short RC window, with the certified branch taking the same fixes a cycle later. Nothing in these entries points to feature work in flight.
Alternatives to CasparCG Server and Asterisk
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 CasparCG Server or Asterisk.
HOMER
Three security advisories in three days as HOMER locks down the query layer it just opened up.
Switcher Studio
Switcher Studio's tracked feed is search-driven streaming education, not product news.
3CX
3CX is bolting AI onto the PBX and rewriting its licensing to match
CallHippo
CallHippo is arguing that compliance, not features, is what sells business calling.
Intermedia
A UCaaS marketing blog split between buyer education and channel-partner enablement.
See all CasparCG Server alternatives → · See all Asterisk alternatives →
Recent activity from CasparCG Server and Asterisk
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2d agoAsteriskCertified 22.8-cert4: 8 community-reported fixes
- 3d agoAsterisk23.5.0-rc1 opens the cycle with 27 issues resolved
- 3d agoAsterisk22.11.0-rc1 mirrors the 23.5.0 fix set
- 3d agoAsterisk20.21.0-rc1 carries the same set back to the LTS line
- 1mo agoAsterisk23.4.1 security release resolves 20 advisories
- 1mo agoAsterisk22.10.1 takes the same 20-advisory security set
- 8mo agoCasparCG Server2.5.0 brings initial HDR, headless Linux and an AVX2 baseline ⚡
- 1y agoCasparCG Server2.4.3 clears crashes across FFmpeg, Decklink and HTML producers
- 1y agoCasparCG Server2.4.2 restores Decklink driver 14.3 compatibility
- 1y agoCasparCG Server2.4.1 fixes Decklink subregions, EXIF rotation and NDI source listing
- 2y agoCasparCG Server2.4.0 adds 8K and 4K DCI frames plus AMCP command batching
- 2y agoCasparCG Server2.4.0 RC1 preview of the 2.4 feature set
Frequently asked questions
What is the difference between CasparCG Server and Asterisk?
They serve adjacent needs but don't currently overlap on shipped themes. Asterisk 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 CasparCG Server better than Asterisk?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Asterisk 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 CasparCG Server?
Top CasparCG Server alternatives in Meetings are ranked by recent ship velocity. Browse the "CasparCG Server alternatives" section above for the current picks, or visit /alternatives/casparcg-server for the full list with editorial commentary on each.
What are the best alternatives to Asterisk?
Top Asterisk alternatives in Meetings are ranked by recent ship velocity. Browse the "Asterisk alternatives" section above for the current picks, or visit /alternatives/asterisk for the full list with editorial commentary on each.