Scale & Performance

High-throughput systems, voice test automation, distributed infrastructure

Building systems that handle real production load — thousands of concurrent calls, hundreds of thousands of messages per day, and distributed infrastructure across multiple countries.

High-Throughput Voice Systems

Voice platforms handling 400–700 simultaneous calls per cluster with HA failover. Bulk dialers pushing 300 concurrent outbound calls per node with horizontal scaling. Push-to-talk systems designed for 2,000 concurrent users per node. We size, architect, and validate capacity before going live.

Distributed Infrastructure

Multi-server clustering with Asterisk, Kamailio SIP proxies for load distribution, and queue-based worker architectures using RabbitMQ and Redis. Platforms deployed across multiple regions and countries — from centralized cloud clusters to edge devices in remote locations.

Voice Test Automation

End-to-end voice testing infrastructure: automated SIP call generation with SIPp, IVR flow validation, audio quality measurement, and carrier-level testing across multiple countries. We’ve built distributed GSM test networks using local hardware in 14 markets, and designed test frameworks that reduced manual voice testing from days to hours.

High-Volume Messaging

SMS gateways processing 500,000+ messages per day across multiple carrier connections via HTTP REST and SMPP. Notification systems, bulk messaging platforms, and multi-channel delivery (voice, SMS, fax, WhatsApp) with unified APIs.

Fraud Detection & Platform Security

Real-time call pattern analysis, configurable threshold alerting, and automatic blocking of suspicious traffic. Toll fraud prevention for telecom operators and hosted PBX providers serving thousands of customers. SIP security hardening, access control, and VoIP-specific threat mitigation.