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Technologies inside the Platform
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Erlang OTP
This framework ensures high reliability and availability with decades-proven virtual machine stability. It supports dynamic debugging and hot code swapping, ideal for communication services requiring uninterrupted operation. Its lightweight process model drives the platform’s event-driven architecture, enabling efficient asynchronous operations. -
NodeJS + React
The platform adopts independent client web applications per user role, emphasizing rapid development and modular, focused functionality. Server-side microservices are developed in TypeScript and run under Node.js supervision, enabling flexible and maintainable product microservices. -
C++
Used for the media processor, C++ provides exceptional performance critical for handling audio and video traffic, including transcoding. It achieves up to 150-200 simultaneous voice calls per CPU core, unmatched by other tools. -
PostgreSQL
A robust relational database for configuration data storage, also used for event history and aggregated logs, supporting project databases via domain connection. -
Apache Kafka
A distributed, fault-tolerant streaming platform that handles event streams from the communication platform, facilitating data forwarding to storage and reporting systems. -
ClickHouse
A high-performance columnar database designed for big data analytics. It supports multi-server clusters and enables fast analytical queries on large datasets, serving as an alternative storage for event history with direct report generation.
The reliability of the Erlang virtual machine, proven over decades of uninterrupted operation in telecommunications solutions, eliminates the risks associated with the immaturity of the tool. The capabilities for dynamic debugging and hot code swapping at runtime have been known since the early 1990s and are extremely useful when implementing services with high demands for uptime and availability.
An event-driven architecture with extremely lightweight processes allows the event-oriented platform being developed to avoid having its own deep layer of solutions for facilitating and providing asynchronous operations. It becomes the driver of the platform's architecture. Erlang is used in well-known solutions such as Discord messaging communicator, the RabbitMQ message broker, and others. It is not a mainstream tool in software development, which is why finding ready developers can be challenging. However, technological research has shown that the onboarding time for a new developer ranges from 1 to 4 weeks, which practically eliminates the problem.
In the realm of a communication platform, the media processor stands as a beacon of unparalleled performance. Tasked with the critical job of handling audio and video traffic, its prowess becomes especially vital when transcoding. It efficiently repackages media traffic from one codec to another.
This specialized focus demands a unique set of non-functional priorities, which is why we isolate the media processor for dedicated attention. Engineered in C++, this powerhouse achieves an astounding capability of handling 150-200 simultaneous voice calls per processor core, contingent on the codecs used. Such performance is unrivaled by any other available tool, setting a new standard for excellence in media processing.
Load test results. Four servers cluster 16CPU/32RAM
- 600Call-center agentsonline simultaneously
- 6Inbound callsper second
- 80Outbound callsper second by predictive dialer
- 2200Simultaneous connectionsRTP-connections between users and customers
- 20M+Callsper 72 hours
- 35%CPU Loadaverage