Freedom251 › Call Center Software
Issabel
by Issabel
What Issabel is
Issabel is open-source VoIP software that consolidates IP communication services in one platform. It functions as an IP PBX for custom call routing, contact-center configuration, and connections to email, databases, and other systems. Listed capabilities include an auto attendant, voicemail transcription, call-center tools, email, management reports, fax, video-call meetings, audio recording, and CRM or platform integrations. The official Contact Center can run in Issabel’s cloud, on-premise, or a customer’s private cloud. It supports inbound and outbound campaigns, progressive and preview dialing, web chat, web calls, SMS campaigns, call recording, and real-time monitoring. AI-provider integrations include OpenAI, Anthropic, and Groq, with APIs and webhooks for third-party connections. Call encryption and user-based permissions are listed security features. Core software uses GPLv2 and GPLv3 licenses without licensing costs, while support, maintenance, and training may cost extra. Issabel offers a free plan; Issabel Network is $8.33 a month. Other listed options include voice-agent and omnichannel licenses, advanced reports, OpenAI integration, and 24/7 support. The Community Contact Center is no longer supported.
Who it suits
Issabel suits advanced end users and system administrators needing open-source VoIP and contact-center deployment. It supports cloud, on-premise, and private-cloud environments.
What it does well
- Open-source core under GPL licenses
- Custom call routing and IP PBX
- Cloud and self-hosted deployment options
- Contact-center campaigns and monitoring
- APIs, webhooks, and AI integrations
What to know first
- Support, maintenance, and training may cost extra
- Community Contact Center is unsupported
- Agent licenses have minimum counts
- Some listed services carry separate fees
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Issabel Network | billed monthly · Server monitoring · Cloud backups · Alerts and notifications · Add-on management · Two-factor authentication | $8.33 a month |
| Advanced reports | $20 USD/month · Access to advanced reports; regardless of agent count | $20 a month |
| 24/7 Support | $250 USD/month · Optional; 3 to 4 hour response time for all events | $250 a month |
| Voice Agent License | $29 USD/month per agent · Minimum 5 agents in Issabel Cloud; minimum 10 agents on-premise or private cloud | $29 a month |
| Omnichannel Agent License | $39 USD/month per agent · Minimum 5 agents in Issabel Cloud; minimum 10 agents on-premise or private cloud | $39 a month |
| OpenAI Integration | $50 USD/month · Optional; for intelligent chatbots | $50 a month |
As issabel.com lists them, read 21 Sept 2026. The maker's own page has the final word.
Verdict
Issabel provides a broad open-source communications platform with PBX, contact-center, and integration features. The free core supports several deployment models, while paid modules and support add costs and the older Community Contact Center is no longer maintained.
Facts from Issabel's own pages
- Audience
- The download listing identifies advanced end users and system administrators as the intended audience. · issabel.org, 11 Oct 2026
- Auto attendant
- Yes · issabel.com, 21 Sept 2026
- Call routing
- custom · issabel.com, 21 Sept 2026
- Contact Center features
- Contact Center lists inbound and outbound campaigns, progressive and preview dialing, web chat, web calls, SMS campaigns, call recording, and real-time monitoring. · issabel.com, 11 Oct 2026
- Core functions
- It functions as an IP PBX for call routing, contact center configuration, and integration with external systems such as email and databases. · issabel.com, 11 Oct 2026
- Current download
- The download page offers an Issabel 5 USB/DVD ISO for x86_64. · issabel.org, 11 Oct 2026
- Deployment
- Contact Center can be deployed in Issabel’s cloud or on-premise or in the customer’s private cloud. · issabel.com, 11 Oct 2026
- Founded
- 2017 · issabel.com, 28 Sept 2026
- Free plan
- Yes · issabel.com, 21 Sept 2026
- Headquarters
- Coral Springs, Florida, USA · issabel.com, 28 Sept 2026
- Included capabilities
- The platform lists call center, email, management reports, fax, video call meetings, audio recording, and CRM and platform integrations. · issabel.com, 11 Oct 2026
- Integrations
- Contact Center supports AI provider integrations including OpenAI, Anthropic, and Groq, plus APIs and webhooks for connecting third-party systems. · issabel.com, 11 Oct 2026
- Licensing
- The core platform is distributed under GPLv2 and GPLv3 licenses with no licensing costs; support, maintenance, and training may incur costs. · issabel.com, 11 Oct 2026
- Security features
- Contact Center lists call encryption and user-based permission management among its security and quality monitoring features. · issabel.com, 11 Oct 2026
- Support limit
- Issabel says it supports only its new official Contact Center module; the Community Contact Center reached end of life in October 2023 and is no longer supported or updated. · issabel.com, 11 Oct 2026
- Support options
- Support is available through a community forum, pay-per-use on-demand support, and subscriptions that can include priority assistance and 24/7 availability at higher tiers. · issabel.com, 11 Oct 2026
- Unified communications
- Issabel is open-source VoIP software that consolidates IP communication services into one platform. · issabel.com, 11 Oct 2026
- Voicemail transcription
- Yes · issabel.com, 21 Sept 2026
Where Issabel stands on Freedom251
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