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Documentation Index

Fetch the complete documentation index at: https://orbit-docs.devotel.io/llms.txt

Use this file to discover all available pages before exploring further.

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Open source attribution

Orbit by Devotel is built on top of several open source projects. This page satisfies Apache-2 License §4 and similar redistribution-notice requirements for every OSS component shipped as part of the platform. The notices below are the minimum required by the upstream licenses. Full upstream LICENSE and NOTICE files are vendored alongside each component in the Orbit source tree and are NOT stripped or modified.

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Orbit Media

Upstream: livekit/livekit — the LiveKit OSS Selective Forwarding Unit. Upstream license: Apache License 2.0. What Orbit ships: a Devotel fork (@orbit/media-server) deployed into our GKE cluster as the SFU media plane for multi-party voice, video rooms, and server-side recording. A matching browser SDK is published as @orbit/media-client. Required notice (Apache-2 §4):
Copyright 2021–present LiveKit, Inc. Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. Portions of this work have been modified by Devotel for the Orbit platform; modifications are tracked in the @orbit/media-server repository changelog and remain Apache-2 licensed.

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drachtio

Upstream: drachtio/drachtio-server — the SIP signaling server we run as the Orbit SBC alongside Jambonz. Upstream license: MIT License. What Orbit ships: unmodified drachtio-server builds packaged into our sbc-sip StatefulSet; configured via Jambonz and a thin Orbit-side wrapper. Required notice (MIT):
Copyright (c) Dave Horton and drachtio.org contributors. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

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rtpengine

Upstream: sipwise/rtpengine — the RTP/SRTP media proxy we use for codec transcoding and NAT traversal on PSTN-to-SIP bridging. Upstream license: GNU General Public License v3 (GPLv3). What Orbit ships: unmodified rtpengine builds running as a sidecar to the SBC. Orbit does NOT link rtpengine source into any proprietary binary — it runs as a separate process with a documented NG control protocol, so the GPL boundary is preserved. Required notice (GPLv3 §5):
Copyright (C) 2010–present Sipwise GmbH. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

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Jambonz

Upstream: jambonz/jambonz-feature-server and the surrounding component family (jambonz-api-server, sbc-sip-server, etc.). Upstream license: MIT License. What Orbit ships: Jambonz running in our voice-edge GKE cluster as the call-control layer between the carrier and Orbit Media / AI agent runtimes. We add an Orbit-side helm chart and a few configuration overlays; no upstream source modifications are redistributed. Required notice (MIT):
Copyright (c) Dave Horton and the Jambonz contributors. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

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coturn

Upstream: coturn/coturn — TURN/STUN relay used by browser softphone clients behind symmetric NAT. Upstream license: BSD 3-Clause “New” or “Revised” License. What Orbit ships: unmodified coturn builds, deployed via the helm chart at infrastructure/helm/coturn/. Required notice (BSD-3-Clause):
Copyright (c) 2011, 2012, 2013 Citrix Systems and other contributors. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
  1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
  2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
  3. Neither the name of the project nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY.

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Reporting an attribution gap

If you spot OSS code in any Orbit deliverable (npm package, container image, public asset, doc) whose upstream license is not honoured on this page, email legal@devotel.io with the upstream repo URL and the location in our distribution where it appears. We treat attribution gaps as P1 — they’re fixed inside one business day and a corrected attribution shipped with the next release. The infrastructure/runbooks/livekit-cloud-decom-checklist-2026-05-14.md runbook is the operational cutover plan that retired our use of the hosted LiveKit Cloud service in favour of the in-house Orbit Media fork. The Apache-2 attribution above continues to apply to every release that ships the fork.