Side by side
Nixxis vs Sigma Dialer
Both stand on call center software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Paid Self-hosted
Nixxis covers inbound, outbound, and digital contact-center operations with agent tools, monitoring, AI features, and deployment choices. Buyers need a personalized quote and edition discussion to determine the exact package.
Visit Nixxis Paid APIWeb
Sigma Dialer brings outbound, inbound, compliance, and agent tools into one cloud service. Its broad integrations and controls suit structured contact-center operations, while pricing requires direct discussion.
Visit Sigma DialerThe facts
| Nixxis | Sigma Dialer | |
|---|---|---|
| Free plan | Not published | Not published |
| Open source | Not published | Not published |
| Runs on | Self-hosted | API, Web |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 1 | 1 |
| Maker | Nixxis | Not published |
| Website | nixxis.com | sigmadialer.com |
| On call center software | #103 of 122 | #99 of 122 |
Nixxis: what it does well
- Supports voice, email, chat, SMS, WhatsApp, and social media
- Up to 10 dialer modes by edition
- Includes IVR builder and workforce management
- Cloud or on-premise deployment options
- Real-time monitoring and custom reports
What to know first
- Pricing is available only on request
- Features vary by edition
- Exact integrations depend on edition
- Concurrent positions affect the quote
Sigma Dialer: what it does well
- Predictive, progressive, preview, and power dialing
- Visual IVR and skills-based routing
- Browser WebRTC softphone
- Transcription, scoring, and risk detection
- Open REST API and real-time webhooks
What to know first
- Voice-only digital channel scope
- Pricing requires a quote
- International and short-code messaging billed separately
- HIPAA BAA available only on request
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