Sigma Dialer
5.5#15 in telemarketingWebAPI
VisitSigma Dialer vs VICIdial
What both publish
| Fact | Sigma Dialer | VICIdial |
|---|---|---|
| API | Sigma lists an open REST API and real-time webhooks for connecting other systems. | A web-based agent API supports remote session control such as click-to-dial, and a separate lead-import API is provided. |
| Digital channel scope | voice_only | voice_plus_digital |
| Inbound calling | Yes | Yes |
| Integrations | The site lists Salesforce, HubSpot, Zendesk, Pipedrive, Slack, Intercom, Snowflake, BigQuery, Segment, Redshift, Twilio, Amazon S3, Databricks, Claude, OpenAI, and webhooks. | Listed add-ons include CRM integrations, VICIphone WebRTC, WordPress, DNC.com, QueueMetrics, Cepstral, Oreka and KHOMP. |
| IVR builder | Yes | Yes |
| Outbound dialer | Yes | Yes |
| Product | Sigma Dialer combines a predictive dialer, inbound ACD, compliance layer, and agent desktop in a cloud platform. | VICIdial is an enterprise-class, open-source contact center suite with a predictive dialer. |
Sigma Dialer plans
- Per-seat quotePriced on request
VICIdial plans
- Free Open-Source DownloadFree
- VICIhost hosting$400 a month
- Additional VICIhost server provisioning$500, paid once
- VICIhost initial provisioning$1,000, paid once
Pick Sigma Dialer if…
You want what its maker publishes above — check its page for the details.
Pick VICIdial if…
You want what its maker publishes above — check its page for the details.