Five9Smarter CX with every interaction.
vs
FreePBXFree open-source PBX built on Asterisk
Comparison · Contact Center · weekly run Nov 3
Five9 vs FreePBX
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Five9 is the stronger AI pick in Contact Center: it has a visibility score of 28.5 versus 0 for FreePBX.
Choose Five9 if…
- You want the brand AI engines rank higher (28.5 vs 0)
- You need SOC 2 Type II or HIPAA or PCI-DSS or GDPR or C5 or ISO 27001 or DORA or ISO/IEC 27017:2015 or CSA STAR or TX-RAMP Level 2 or Cyber Essentials or CPNI coverage
- Cloud-native architecture seen as scalable and reliable
- Strong blended inbound and outbound capabilities
Choose FreePBX if…
No clear advantage in the published data.
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Five9 | FreePBX |
|---|---|---|
| Visibility score | 28.5% | 0% |
| Change vs last week | up+1.1% | no change0% |
| Rank in Contact Center | #4 | #42 |
| Share of voice | 6.2% | 0% |
| Mentions this run | 36 | 0 |
| Positive in AI answers | 48% | — |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Five9 +1pp · FreePBX 0pp over 1 weekly runs.
Engine by engine
Five9 leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
Five9FreePBX
Head to head in AI answers
0 engine answers name both brands
0Five9 ranked higher
0FreePBX ranked higher
Features, pricing & fit
| Dimension | Five9 | FreePBX |
|---|---|---|
| Deployment | Cloud | Self-hosted software, cloud images, and Sangoma-certified appliances |
| Integrations | 300+ | — |
| Compliance | SOC 2 Type II, HIPAA, PCI-DSS, GDPR, C5, ISO 27001, DORA, ISO/IEC 27017:2015, CSA STAR, TX-RAMP Level 2, Cyber Essentials, CPNI | — |
| Support | Support portal, Community, Training, Documentation | Community forum |
| Founded | 2001 | 2004 |
| Headquarters | San Ramon, CA | 100 Renfrew Dr, Markham, Ontario, Canada |
| Employees | 1,001–5,000 | — |
| Funding | Post-IPO convertible | — |
| Best for | Enterprises that want AI and human agents on one contact center platform. | Cloud PBX providers, VoIP providers, and contact center software vendors, based on G2 review data |
Pros and cons
Themes from the AI answers that mention each brand
Five9
- Cloud-native architecture seen as scalable and reliable
- Strong blended inbound and outbound capabilities
- Robust AI and automation features
- Well regarded analyst standing, Gartner Magic Quadrant Leader
- Strong digital self-service
- Expensive quickly at enterprise scale
- No robust free tier
- Potential feature gaps in workforce management, quality management and analytics for large operations
FreePBX
Profile in progress.
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 98.8%·next run
Cite as: SlateIndex, “Five9 vs FreePBX”, https://slateindex.ai/compare/five9-vs-freepbx, data of Nov 3, 2026. Licence: CC BY 4.0.