jambonz
jambonz: A self-hostable voice platform for teams prepared to operate their own stack. Ranked #19 of 53 in Voice APIs by our editors (7.6/10); pricing: Free plan; best for teams that can operate an open-source voice stack.
At a glance
- Editor score7.6 / 10
- PricingFree plan
- Best forTeams that can operate an open-source voice stack
- Free planYes
- Paid fromFree
- Inbound callingYes
- Facts checked23 Sep 2026
Where it wins
- Programmable inbound and outbound calls with SIP connectivity
- Supports recording and phone numbers through carrier integrations
- Open-source deployment options include cloud and self-hosting
Where it doesn't
- Self-hosting shifts stack operations to the buyer
- Carrier, phone-number, and usage charges depend on the connected provider
- Not a finished call-center application
Our verdict on jambonz
jambonz is an open-source communications platform for developers and organizations building programmable voice applications. It supports inbound and outbound telephone calls, SIP connectivity, phone-number use through carrier integrations, and call recording. Its focus is customizable voice infrastructure rather than a finished call-center application, making it a fit for teams that can operate and adapt a voice stack across small, mid-market, or enterprise environments.
The platform exposes HTTP and WebSocket application interfaces for call control, and documentation covers deployment, application control, and integrations with telephony carriers and other communications services. Teams can choose cloud or self-hosted deployment; self-hosting offers control over the infrastructure but makes operating that stack the buyer's responsibility. The published interfaces and carrier integrations make jambonz suited to developers building voice workflows around existing telephony providers, rather than teams seeking a turnkey calling product.
There is no product license cost for the open-source software, but telephony carrier, number, and usage charges depend on the connected provider. Documentation and community are the listed support channels. jambonz is worth considering when a team values an open-source, programmable foundation and has the capacity to manage deployment and provider relationships. Teams looking for a finished call-center application or a service that removes responsibility for operating voice infrastructure should consider a different type of product.
Your product? Our editors can test jambonz in depth and publish a review, labelled as paid · from $149/mo →
jambonz pricing
jambonz fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Inbound calling | Yes |
| Outbound calling | Yes |
| Phone number support | Yes |
| SIP support | Yes |
| Call recording | Yes |
| Concurrent call limit | Not verified |
| SDK languages | JavaScript, Node.js |
| Deployment | Cloud, Self-hosted |
| Platforms | Web |
| Support | Community, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan |
| Website | jambonz.org |
| Facts checked | 23 Sep 2026 |
Alternatives to jambonz
- Vonage Voice APIA broad voice API for building PSTN, SIP, WebRTC, IVR, and AI call workflows.9.4
- Twilio Elastic SIP TrunkingA focused SIP-to-PSTN service with secure trunking and pay-as-you-go voice charges.9.2
- Bandwidth Voice APIA broad PSTN voice API for calling, media control, transcription, and AI streaming.9.1
See all jambonz alternatives →
Used jambonz? Be the first to review it
The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used jambonz for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
Write a reviewTwo minutes · verified accounts only · read by an editor before it appears
Featured on iTechGuides
jambonz is listed in our Voice APIs directory. Add the badge to your site — it links back to this page.
<a href="https://www.itechguides.com/products/jambonz/"><img src="https://www.itechguides.com/best/badge/jambonz.svg" alt="Featured on iTechGuides" width="230" height="46"></a>
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update