Side by side
Comcent vs SIP.IO
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.
Free plan APILinuxSelf-hosted+1
Comcent combines programmable voice, call routing, and AI analysis with cloud or Linux self-hosting. Review the SIP-trunk requirement, webhook behavior, and plan limits before choosing an edition.
Visit Comcent
Free plan APIWeb
SIP.IO combines programmable voice and contact center features, with options for messaging, recording, and AI-assisted calls. The Free tier supports testing, while current usage pricing requires contacting the company; HIPAA is not offered.
Visit SIP.IOThe facts
| Comcent | SIP.IO | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Linux, Self-hosted, Web | API, Web |
| Lowest paid plan | Starter: $20 a month | Free or on request |
| Plans published | 6 | 2 |
| Maker | Not published | Not published |
| Website | comcent.io | sip.io |
| On call center software | #10 of 122 | #14 of 122 |
Comcent: what it does well
- Inbound calling and outbound dialer
- Visual call-flow routing editor
- AI transcripts, summaries, and sentiment
- JSON REST API and webhooks
- Free Community Edition available
What to know first
- Customers must provide a SIP trunk
- Failed webhooks are not retried
- Calls pause when prepaid wallet empties
- Voice-only channel scope
SIP.IO: what it does well
- Free tier includes a test phone number and call-flow access.
- Browser softphone supports WebRTC calling inside an app.
- Call recordings can pause and resume mid-call.
- Voice AI agents can escalate to people.
- SIP.IO says it is ISO/IEC 27001 certified.
What to know first
- Current usage-based prices require contacting SIP.IO.
- Published voice and number rates are examples only.
- HIPAA is not offered and there is no BAA program.
- SOC 2 Type II has not been audited.
Alternatives to Comcent Alternatives to SIP.IO The whole list