CrestaThe AI operating system for customer experience
vs
FreePBXFree open-source PBX built on Asterisk
Comparison · Contact Center · weekly run Nov 3
Cresta vs FreePBX
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Cresta is the stronger AI pick in Contact Center: it has a visibility score of 0.9 versus 0 for FreePBX.
Choose Cresta if…
- You want the brand AI engines rank higher (0.9 vs 0)
- You need ISO/IEC 42001 or ISO/IEC 27701 or PCI-DSS coverage
Choose FreePBX if…
No clear advantage in the published data.
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Cresta | FreePBX |
|---|---|---|
| Visibility score | 0.9% | 0% |
| Change vs last week | New | no change0% |
| Rank in Contact Center | #34 | #42 |
| Share of voice | 0.4% | 0% |
| Mentions this run | 3 | 0 |
| Positive in AI answers | — | — |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Cresta +0.9pp · FreePBX 0pp over 1 weekly runs.
Engine by engine
Cresta leads on 2 of 3 engines
ChatGPT
AI Mode
Perplexity
CrestaFreePBX
Head to head in AI answers
0 engine answers name both brands
0Cresta ranked higher
0FreePBX ranked higher
Features, pricing & fit
| Dimension | Cresta | FreePBX |
|---|---|---|
| Deployment | — | Self-hosted software, cloud images, and Sangoma-certified appliances |
| Compliance | ISO/IEC 42001, ISO/IEC 27701, PCI-DSS | — |
| Support | — | Community forum |
| Founded | 2017 | 2004 |
| Headquarters | Sunnyvale, California, US | 100 Renfrew Dr, Markham, Ontario, Canada |
| Employees | 501–1,000 | — |
| Funding | Series D · $270M raised | — |
| Best for | Large enterprises in regulated industries with high-volume contact centers | Cloud PBX providers, VoIP providers, and contact center software vendors, based on G2 review data |
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 98.8%·next run
Cite as: SlateIndex, “Cresta vs FreePBX”, https://slateindex.ai/compare/cresta-vs-freepbx, data of Nov 3, 2026. Licence: CC BY 4.0.