Welcome to jambonz

jambonz is a self-hosted, "bring your own everything" open source CPaaS platform, developed by the creator of the drachtio open source sip server.

Unlike those fancy-pants CPaaS services, jambonz is designed to be:


Who is jambonz for?

jambonz is made for:

Why does jambonz exist?

There are a lot of CPaaS providers on the market today, and they all provide a similar set of easy-to-use APIs that allow enterprises to manage their communication services in new and innovative ways. The concept was novel 10 years ago, but does it really require the high prices and loss of control that commercial solutions provide today?

jambonz differs from other solutions because it is:

a) open source.

Oh, and we mean completely open source (none of that "yes, we have open source, but you really need to think about upgrading to our commercial offering if you're going to be serious about this relationship", haha).

All of the jambonz core software and drachtio is available on github under the MIT License.

b) a self-hosted solution:

You run it on your own infrastructure. Use your own SIP trunks. Your own storage. Your own cloud speech credentials. Why pay someone to upcharge you for all of that when it's basically a one-click experience to provision all of those yourself in today's world. You know how to click, right?

Let's put it this way: ask yourself -- what are you really getting of value from that fancy-pants CPAAS service you're paying for, when you take away all of the integrations that you can easily do yourself?

Just a nice API and application processing engine, that's what. So why not get your own telephony API engine (hint, hint: that's jambonz!) and bring your own everything else to the party? Just sayin.

c) a radical approach to privacy.

None of your customer's personally identifiable information (PII) is stored at rest within the jambonz platform itself. Ever.

Recordings or transcriptions that might contain sensitive information such as credit card numbers, HIPAA-related information, or social security numbers are neever stored at rest within the platform itself.

How about SIP credentials for devices or webRTC clients that you want to be allow to register with the platform and make phone calls? Sure, we allow all of that but we don't store the credentials -- you do. We never store any SIP credentials that could be hacked or used by others to run up your bill.

d) white-labelable.

Is that even a word? Well, in any case, jambonz is service-provider friendly -- it can operate in a multi-tenant configuration for service providers that want to provide a hosted service for customers who are interested in enjoying the privacy and other features of jambonz without running their own hardware.

How do jambonz applications work?

Well, if you are using one of those fancy-pants CPAAS services, then you are already familiar with how this works:

A jambonz application controls calls via web callbacks and an HTTP API. The jambonz platform notifies your application of incoming calls and call status changes via web callbacks. Your application provides call control instructions by responding to web callbacks with JSON payloads that include instructions, or by invoking a REST API.

Additionally, jambonz supports sip end-user devices and webRTC clients registering with the platform and making and receiving calls.

Come on people. We can do this thing!

Take the next step, and read on to review the Call Control and management APIs.

What's the name mean?

The origin of the name jambonz is unclear, but it is rumoured to either be an acronym for:

just another mediocre boring object notational exercise in silliness


a nod to an obscure 1980s-era Boston slang term:

jambones [jam-bōnz] (adverb): to move fast; with reckless and uncontrolled abandon.

Geraint Thomas was going jambones on that descent!

Getting started

Enough already! I just want to build one of these things and take it for a spin!

OK, gotcha - check out a short video showing a soup-to-nuts walkthrough of how to deploy on AWS in 10 minutes or less, or review instructions on how to build on your own infrastructure.

Talk to us on our slack channel to ask questions, learn more about jambonz, or find out how to contribute.

How you can support the effort

This open source software is available to you at no cost with the most permissive licensing available (MIT). Of course, the fact that it is free does not mean that it has no value: in fact it has proven to be of great value to many, and hopefully you will find it to be of value as well.

If you do, I hope you will consider sponsoring the project (and my related open source projects) by clicking the sponsor button below. This allows me to spend more time adding new features, fixing bugs, creating new documentation so that this product -- and the associated community -- can really thrive. Thanks for considering this.

Additionally, beyond sponsoring the project there are many ways to help drive this effort forward, and make it continually more useful for everyone. Please consider some of the non-financial ways you may be able to contribute:

Finally, if you are using this or any other VoIP or RTC open source project, then you are part of the greater VoIP/RTC ecosystem. Be thoughtful about how we can all sustain and improve this ecosystem, because through our actions we all leave it in either a better or worse state as we pass through -- never unchanged. Even relatively simple actions such as: sending employees to attend open source conferences, publicizing open source projects that perform a valuable role in your own commercial offerings, and sponsoring specific features under an open source license, are meaningful actions that are not all that difficult to do.

Thanks, and Namaste.