Callaba deploys live video workflow infrastructure in your AWS account - replacing scattered tools with one control plane for SRT ingest, failover, routing, recording, and API automation.
Callaba - Cloud Infrastructure for Mission-Critical Live Video
Callaba is a unified control plane for live video workflows, deployed as an AMI inside your own AWS account. It replaces scattered point tools with one operational system for receiving, monitoring, routing, switching, recording, and delivering live video.
A free trial is available - launch from AWS Marketplace and start streaming in minutes with usage-based pricing that scales with your workload.
Key Capabilities
SRT and RTMP Ingest - Receive contribution feeds from encoders, remote cameras, and production tools. Reliable SRT/RTMP server+gateway with ultra-low latency
Browser Multiview - Monitor multiple live sources in real-time from any browser with zero software installation
Main/Backup Failover - Switch between primary and backup streams manually or automatically
Cloud Routing - Route video feeds to multiple outputs, destinations, and downstream systems
SRT to NDI Conversion - Bridge cloud and on-premises production environments
Live Recording - Record events directly to storage within your AWS account
Video Calls with Talkback - Coordinate with remote talent and crew via WebRTC
Private Playback - Create secure, branded player links for stakeholders
Restreaming - Distribute to social platforms, CDNs, and custom endpoints
API Automation - Build repeatable workflows and integrate with external systems programmatically
Security and Data Sovereignty
Callaba runs entirely within your AWS VPC. No video data leaves your account unless you explicitly route it to an external destination. SRT transport provides built-in AES-128/256 encryption for feeds in transit. Recordings are stored in your own infrastructure with AWS encryption options for data at rest. The management interface requires authentication, and API access is controlled through key management.
Deployment and Prerequisites
Deploy directly from AWS Marketplace by selecting your preferred instance type and AWS region. Quick-start flow: launch the AMI, access the management UI, create an SRT server, stream from OBS Studio or any SRT-capable encoder, and verify output with VLC or your production tool.
Supported instance types: Choose based on your workload - higher vCPU and memory configurations support more concurrent streams and transcoding operations. Runs on standard EC2 instances within your existing VPC.
Use Cases
Live Events - Multi-camera ingest, real-time monitoring, and failover for concerts, sports, and conferences
Remote Production - Receive SRT feeds from distributed locations into a centralized cloud control room
Video Platforms - API-driven infrastructure for OTT services and streaming applications
Why Teams Choose Callaba Over Scattered Tools
Instead of managing separate systems for ingest, monitoring, failover, recording, and delivery, Callaba consolidates these into one interface. Running inside your own AWS account means no vendor lock-in, full data sovereignty, and infrastructure you control. The browser-based multiview eliminates dedicated hardware multiviewers, and API automation enables workflows that manual tools cannot replicate at scale.
Get started with the free trial - deploy from AWS Marketplace, create your first SRT server, and have a working live video workflow running in minutes.
Highlights
Control live video workflows from one AWS-based system.
Receive SRT and RTMP feeds, route sources to multiple outputs, monitor streams in the browser, record events, and manage production workflows from a single interface. Designed for broadcast, OTT, AV, and production teams who need centralized control over distributed live video operations.
Monitor and protect live events with browser multiview and failover.
View multiple live sources from any browser, check feed status in real time, and switch between main and backup streams manually or automatically. File fallback ensures continuous output even when all live sources drop, keeping your broadcast on air.
Build cloud, hybrid, and private production workflows.
Convert SRT to NDI, send feeds to production tools, create private players, restream to multiple destinations, record live content, and automate repeatable workflows through the Callaba API. Supports SRT push and pull routing with detailed real-time graphical statistics for connection health monitoring.
AWS Marketplace now accepts line of credit payments through the PNC Vendor Finance program. This program is available to select AWS customers in the US, excluding NV, NC, ND, TN, & VT.
Try this product free for 5 days according to the free trial terms set by the vendor. Usage-based pricing is in effect for usage beyond the free trial terms. Your free trial gets automatically converted to a paid subscription when the trial ends, but may be canceled any time before that.
Callaba Cloud - Live Video Production Control Plane
You pay by the hour based on the EC2 instance type you launch, and the software runs in your own AWS account. The 26 dimensions map to different AWS instance families and sizes. The t2, t3, and t3a options cover general-purpose compute at varying core and memory counts. The c4 and c5 options cover compute-optimized sizes for heavier processing. The vt1 options target video transcoding workloads. Within each family, larger sizes carry a higher hourly rate. You scale by choosing a larger instance or by running more instances. AWS infrastructure charges apply separately.
Top-of-mind questions for buyers
What does one hourly unit cover, and where does the software actually run?
Each unit is one running EC2 instance of the chosen type, billed per hour. The software runs inside your own AWS account. You sign in using admin and the EC2 Instance ID as the first password. AWS infrastructure charges bill separately from the software charge.
Am I still charged if I stop the instance after a live event?
The software charge meters running time only. When you stop or terminate the EC2 instance, software charges stop. Idle or unused running instances keep accruing charges, so stop test infrastructure after use. Note that stored data may still incur separate AWS storage fees.
What drives my cost when I need to handle more streams or heavier processing?
Cost follows the instance type you pick and how long it runs. Compute-optimized c4 and c5 sizes suit heavier processing. The vt1 sizes target video transcoding. You raise capacity by choosing a larger instance or by launching more instances, each metered on its own hourly rate.
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An AMI is a virtual image that provides the information required to launch an instance. Amazon EC2 (Elastic Compute Cloud) instances are virtual servers on which you can run your applications and workloads, offering varying combinations of CPU, memory, storage, and networking resources. You can launch as many instances from as many different AMIs as you need.
Version release notes
MULTIVIEW: YOUR SOURCES ON ONE SCREEN
Monitor multiple live sources together in a browser-based Multiview board, with configurable layouts, source labels, audio meters, and stream information.
Bring SRT, RTMP, and NDI sources into the same monitoring workspace.
Select the exact stream within an SRT or RTMP server instead of relying on an ambiguous server-level selection.
View codec, resolution, frame rate, bitrate, and connection information without reloading the board.
Follow connection and disconnection events and control main/backup routing from the monitoring interface.
Create SRT failover configurations with an optional Multiview board to make initial setup faster.
Improved handling of source codec changes, including changes between main and backup feeds.
Improved layouts and controls for smaller screens and tablets.
Improved recovery after service restarts, configuration imports, and temporary source interruptions.
AV MIXER STUDIO: LIVE PRODUCTION IN YOUR BROWSER
Added a production workspace with separate Preview and Program monitors, scenes, layers, audio mixing, recording, and publishing controls.
Prepare the next scene in Preview while the current Program remains on air.
Combine live streams, uploaded video, images, test patterns, browser camera feeds, screen sharing, and supported remote sources.
Save mixer projects and restore configured sources and scene settings when returning to the workspace.
Use CUT or FADE transitions with adjustable duration. CUT is the default for new mixer setups.
Produce landscape, vertical, square, portrait, or custom-format video with configurable Program resolution and frame rate.
Provide separate access for authorized operators and shared viewers.
See Program frame rate, frame-loss information, output health, and available hardware capacity.
MORE DEPENDABLE SCENE SWITCHING
Improved the first TAKE after adding or editing a scene, allowing the new scene to prepare without requiring unnecessary manual workarounds.
Added genuine video crossfades when switching between separately prepared scene pipelines.
Improved audio continuity and synchronization during transitions.
Fixed cases where adding an SRT or phone-camera layer left Preview unavailable until the operator selected another scene and returned.
Improved recovery when a live source temporarily disappears and then reconnects.
Fixed layer-selection problems after deleting a layer, so TAKE uses the intended remaining picture and audio.
Kept scene thumbnails associated with their own scenes during switching.
Reduced Preview, Program, and transport-button flicker during scene changes.
Improved Program startup when secondary sources are still connecting or temporarily unavailable.
Preserved scene assignments, selected layers, and audio routing more consistently across edits, TAKE, and page reloads.
LIGHTER FILE PREVIEW AND MORE RELIABLE PLAYBACK
Added lightweight, cached viewing copies for uploaded video in Preview and scene thumbnails, reducing browser decoding and download load.
Reuse the same prepared viewing copy across layers and scene cards instead of repeatedly loading the full-resolution original.
Keep the original media for Program and published output. Lighter previews do not reduce production output quality.
Apply the preview optimization automatically to newly selected files.
Improved file-based Program startup, looping, and seeking.
On AWS VT1, video files use CPU decoding for dependable playback while configured output encoding can continue to use Xilinx acceleration.
Improved temporary stream Preview quality.
PUBLISHING THAT WORKS INDEPENDENTLY OF PROGRAM
Add or change publishing destinations while Program is running.
Use the top Start/Stop Publish control to manage all configured outputs together.
Retain individual output controls for destination-specific operation.
Stop publishing without stopping Program.
Fixed failures when publishing to an output added after Program had already started.
Improved RTMP and SRT output startup, recovery, and status reporting.
Apply selected output resolution, codec, and keyframe settings more consistently to live outputs and recordings.
AUDIO MIXING AND REMOTE MONITORING
Adjust Program audio levels while the production is running, with live meters and fader control.
Use Audio Follows Video to follow the selected scene or layer.
Crossfade audio when the selected source changes while preserving continuity for shared audio sources.
Keep audio available for monitoring even when its scene is not currently on air.
Work with all configured audio channels rather than a fixed channel limit.
Simplified audio mapping around source selection, mute, solo, and gain.
Improved REMI monitoring for cloud servers without a local sound device.
Preserved confirmed monitoring-output selections and improved recovery after interruptions.
Reduced clicks and brief silent gaps in the Program audio path.
PHONE CAMERAS AND REMOTE CONTRIBUTORS
Connect a phone camera through a QR invitation in Multiview or AV Mixer.
Preview the phone feed and add it directly to a mixer scene.
Reuse invitations until they are explicitly revoked.
Improved reconnection after page reloads, temporary network loss, and publisher restarts.
Switch between front and rear cameras without republishing the feed.
Added a balanced 720p phone profile and lower-bandwidth 480p and 360p options.
Improved microphone publishing and contributor controls.
Improved public-address detection and TURN fallback for cloud connectivity.
Improved cleanup of ended sessions and revoked invitations.
SRT RELIABILITY, FAILOVER, AND VISIBILITY
Improved main/backup switching while preserving downstream receiver and puller connections.
Use transport-level switching that does not depend on a particular audio or video codec.
Improved switching back from backup to main and aligned manual and automatic failover behavior.
Rediscover existing SRT processes after an API restart instead of attempting to start duplicates on occupied ports.
Preserve sessions during temporary control-service interruptions, with controlled reconnection attempts.
Fixed passphrase handling and added validation with clear error reporting.
Apply edited SRT server settings, including passphrase changes, when restarting the enabled server.
Pass configured SRT encryption and latency settings to Multiview inputs.
Improved identification of default and custom stream IDs and their associated statistics.
Added current and historical statistics, active-stream information, and connection events through the API.
Updated the bundled SRT transport library with compatibility and security fixes.
LIVE SRT LOGS: FASTER TROUBLESHOOTING
Added a dedicated log page for each SRT server, accessible through Show logs in the server settings.
Follow new events live, with line wrapping and automatic scrolling.
Pause live updates to inspect an event without losing your place.
Search and filter messages, select a time range, and adjust the displayed line limit.
Export the displayed results for support or further analysis.
Clear stored server logs without deleting the server configuration.
Configure the log level and storage limit separately for each SRT server.
Keep storage bounded, with a default limit of 10 MiB per server.
Reduced repetitive informational messages so useful connection events remain easier to find.
Added API operations for retrieving and clearing server logs.
RTMP AND RECORDING IMPROVEMENTS
Added RTMP server statistics covering active streams, publishers, receivers, and incoming and outgoing bitrate.
Improved statistics accuracy during server edits and configuration reloads.
Exclude internal relay traffic from source bitrate and viewer counts.
Count viewers after media delivery begins.
Keep active publishers and viewers connected during configuration reloads.
Let receivers discover publishers that were already connected before a reload.
Improved cleanup of outdated relays and stopping of server sessions.
Prevent new sessions from joining a stopped RTMP server.
Added an optional guest-access mode and removed application-level RTMP port restrictions.
Improved video-call recording startup when participants join and avoided duplicate recording sessions.
DOMAIN AND SSL SETUP
Added a guided domain and SSL setup workflow.
Choose a free Callaba domain, use your own domain with automatic certificate issuance, or upload your own certificate.
Support automatic certificate renewal and persistent certificate storage.
Improved recovery from failed or interrupted certificate operations.
Verify that HTTPS is ready before moving the browser to the secured address.
Preserve the signed-in operator session across supported domain changes.
Added a confirmed Reset SSL/Domain action with visible progress.
Release a Callaba domain from an old server before reusing it on a replacement server.
Show the server IP alongside clearer DNS instructions and a separate Streaming domain setting.
Validate uploaded certificate and private-key pairs with clearer errors.
Improved recovery of real-time services after domain and TURN configuration changes.
Allow AWS deployment without requiring a configured CloudFront distribution.
ASK AI: HELP INSIDE YOUR WORKSPACE
Added Ask AI to the main dashboard and a contextual panel available from the top navigation.
Open the dashboard after a normal sign-in, with the assistant immediately accessible.
Receive streamed answers and links to relevant Callaba documentation.
Automatically include visible module names, statuses, and metrics from the current page.
Refresh page context when sending each question so answers can reflect the latest visible state.
Keep configuration form values, credentials, and logs out of the automatically attached context.
Added Clear chat, stop, and retry controls.
Ask AI provides guidance; it does not operate or reconfigure the server.
Email Support: Contact the Callaba team at support@callabacloud.com for assistance with deployment, configuration, troubleshooting, and general product questions.
Quick-Start Guidance: After launching from AWS Marketplace, access the management UI to create your first SRT server. Stream from OBS Studio or any SRT-capable encoder and verify output with VLC. Documentation is available on the Callaba website.
For urgent issues during live events, include "URGENT" in your email subject line to help prioritize your request.
AWS infrastructure support
AWS Support is a one-on-one, fast-response support channel that is staffed 24x7x365 with experienced and technical support engineers. The service helps customers of all sizes and technical abilities to successfully utilize the products and features provided by Amazon Web Services.
Receive contribution feeds from encoders and remote cameras with reliable SRT/RTMP server and gateway supporting ultra-low latency streaming
Automatic Failover and Stream Switching
Switch between primary and backup streams manually or automatically with file fallback to ensure continuous output when live sources drop
SRT to NDI Protocol Conversion
Bridge cloud and on-premises production environments by converting SRT feeds to NDI format for integration with production tools
Real-time Multi-source Monitoring
Monitor multiple live sources simultaneously from any browser with zero software installation and real-time graphical statistics for connection health
Encryption and Data Sovereignty
SRT transport with AES-128/256 encryption for feeds in transit, recordings stored in user's AWS infrastructure with encryption at rest, and all video data remains within user's VPC unless explicitly routed externally
Sub-Second Latency Delivery
WebRTC delivery under 500 milliseconds with support for ingest protocols including RTMP, RTMPS, SRT, RTSP, WHIP, NDI, UDP and MPEG-TS, and delivery protocols including LL-HLS, HLS, CMAF, DASH, and MoQ.
Multi-Protocol Support
Support for WebRTC, MoQ, LL-HLS, HLS, RTMP(S), SRT, RTSP, NDI, DASH, CMAF, WHIP, VOD, and Zixi protocols for flexible streaming infrastructure.
Adaptive Bitrate Transcoding
Adaptive bitrate transcoding with live DVR, S3 recording, and CloudFront integration capabilities for multi-platform content delivery.
Auto-Scaling Cluster Deployment
Auto-scaling clusters deployable via CloudFormation with load-balanced origin/edge architecture and managed database for production environments.
RESTful API and Native SDKs
RESTful API with native software development kits for JavaScript, iOS, Android, Flutter, React Native, and Unity for application integration.
Video Player Customization
Customizable player with HTML5 and 4K video format support, cross-device compatibility, logo and color control, and engagement features
Live Streaming and Recording
Live streaming with DVR capability, conversion of live streams to VOD, backup secondary stream support, and clip creation functionality
Video Hosting and Delivery
Unlimited scalable hosting and delivery with dedicated storage allocation, intelligent encoding, and adaptive HLS streaming across devices and platforms
Real-time Analytics and Reporting
Real-time analytics dashboard for VOD and live content, customizable reports with API integration, and third-party analytics integration capabilities
Content Security and Compliance
GDPR compliance, HLS encryption for content protection, and copyright and data protection mechanisms
Improving live event automation has revealed strong low latency streaming and cost savings
Reviewed on Dec 14, 2025
Review from a verified AWS customer
What is our primary use case?
Callaba Cloud is used to host corporate events and webinars, which enables us to host large-scale online events with seamless live streams. It provides instant recording and gallery views, helping us to reach our global audiences.
Additionally, it helps us with content monetization and distribution, which allows us to create content and distribute it through our platform and restream it to the cloud. Callaba Cloud also supports us in hosting big tournaments. It has features such as scalable IP, multi-IP streaming, low latency, and CDN capabilities that give us good control over the video calls we are streaming.
I have been using Callaba Cloud in my current organization for the last three and a half years.
Callaba Cloud was purchased through the AWS Marketplace.
How has it helped my organization?
Callaba Cloud has helped us in achieving low-latency and resilience-optimized real-time delivery, featuring RTMP, SRT, and WebRTC, which support good-scale broadcast and interaction.
Callaba Cloud has positively impacted our organization by reducing latency by 33% and expanding our reach by 22%. Additionally, it has helped us reduce the time to market and fast deployment of our live streams and video content by 55% and increased engagement of our live events and broadcasts by 44%.
By consolidating live streaming, recording, and editing to a single platform, we have also reduced infrastructure and operational costs by 30 to 40% compared to using multiple disjointed tools.
What is most valuable?
Callaba Cloud's intuitive UI is one of my favorite features, as it helps me and my organization to see real-time content organization and aids in multi-platform broadcasting and remote collaboration for our teams spread worldwide.
Callaba Cloud supports SRT, WebRTC, and CDN integration, which simplifies collaboration and provides high-quality, low-latency streaming for our enterprise. Additionally, the live broadcast and video-on-demand feature allows us to upload, stream, record, or embed customizable web players with a simple UI. We can also convert live streams or video calls into cloud-friendly formats, supported by NDI adapters for seamless integration with professional systems, which is another aspect I truly appreciate.
What needs improvement?
While Callaba Cloud provides a good solution to our organization, one area for improvement could be enhancing workflow automation by automating more routine tasks, such as content transcoding, captioning, and distribution to further reduce manual efforts and accelerate content publishing.
Additionally, expanding editing features like multi-camera switching overlays and real-time graphics could enable richer live production without requiring external editing software.
Callaba Cloud could simplify onboarding and configuration with guided tutorials and templates. It could also improve team collaboration features with integrated chat, annotation, and a version control system.
For how long have I used the solution?
I have been working in my current field for almost 10 years.
What do I think about the stability of the solution?
Callaba Cloud is definitely a stable solution, as it rarely encounters glitches in our organization.
What do I think about the scalability of the solution?
Callaba Cloud is very scalable due to the pay-as-you-go model, which allows organizations to scale up or down as needed.
How are customer service and support?
Callaba Cloud integrates very well with other AWS services we use, and whenever integration is required, it functions without malfunctions. Recently, when there was an integration issue about six months ago, the customer support team solved it seamlessly within 45 to 50 minutes, which is commendable.
Which solution did I use previously and why did I switch?
Before using Callaba Cloud, we did not have any dedicated software for these functions. We used our in-house systems and other third-party platforms for streaming. We evaluated multiple solution providers such as Zoom Events, Vimeo Livestream, Brightcove Live, StreamYard, Kaltura, and Dacast among others, but found that Callaba Cloud video production suite was the best fit, providing all the necessary features at a lower cost compared to competitors.
How was the initial setup?
Callaba Cloud was quite easy to deploy in our environment. The deployment does not require any technical solutioning and since we have senior people in our organization who are very technical, the initial deployment was very straightforward and did not take long.
Callaba Cloud's configuration process went well for us. We did not run into any challenges, and the very basic features needed for integration were successfully integrated with ease without any issues.
What was our ROI?
We have indeed seen cost savings by consolidating live streaming, recording, and editing features by 30 to 40%. As a scalable platform, user retention has increased by 34% and improved collaborations among remote teams have resulted in a 25 to 30% increase in productivity due to real-time video editing and cloud-based collaboration features, representing important metrics of improvement.
Which other solutions did I evaluate?
While alternatives like Zoom Events can be creative, the choice ultimately depends on your specific needs.
What other advice do I have?
Callaba Cloud supports SRT, WebRTC, and CDN integration, which simplifies collaboration and provides high-quality, low-latency streaming for our enterprise. Additionally, the live broadcast and video-on-demand feature allows us to upload, stream, record, or embed customizable web players with a simple UI. We can also convert live streams or video calls into cloud-friendly formats, supported by NDI adapters for seamless integration with professional systems, which is another aspect I truly appreciate.
By reducing latency, the time taken to complete tasks and post videos and stream live has significantly improved the experience for those watching. Previously, there was a potential lag of three to four seconds during streaming, and that lag has been fixed, resulting in increased video quality. These are the real use cases from which our organization has benefited by using Callaba Cloud video production suite.
We use AWS as our cloud provider.
Callaba Cloud's procurement process was easy for us.
Regarding the metering and billing experience, it has been good since we access it through the AWS Marketplace, which is based on a pay-as-you-go model. Whenever we need streaming or content creation, the pay-as-you-go model adapts to the plan we are utilizing, such as charging $0.10 per minute for streaming. With good solutioning, enterprise level plans can offer more discounts, making our overall experience with metering and billing quite positive. I would rate this product 4 out of 5.
Broadcast Media
Rock-solid professional software for SRT streaming
Reviewed on Dec 20, 2024
Review provided by G2
What do you like best about the product?
We are a TV production company using Callaba Cloud to manage and distribute SRT feeds. This software is a very flexible SRT gateway with re-streaming and recording. It has served us well and we'll be using it for years to come.
What do you dislike about the product?
Nothing to be honest. I miss a multiview option, but I know they are working on it.
What problems is the product solving and how is that benefiting you?
SRT gateway, re-stream to RTMP youtube, recording, audio channel mapping, re-encoding and much more
Marcin, Pro-TV PL
Five stars is not enought!
Reviewed on Oct 10, 2024
Review from a verified AWS customer
Very pleasant and very easy to use streaming platform. It works very stably and has very fast support. I recommend it to everyone, beginners but especially advanced users.
Martin
Amazing and Totally Solid!!
Reviewed on Sep 13, 2024
Review from a verified AWS customer
Callaba Cloud is fantastic, easy to use, rock solid and dependable, with top quality results using SRT for all my corporate live streams. Worth every penny :)
MCRop
Rock solid
Reviewed on Jul 02, 2024
Review from a verified AWS customer
The SRT functionality is the best. It's reliable and has lots of useful features like restreaming, recording and transcoding. They keep adding new capabilities too. I highly recommend it.