Voice over IP system
- Complete VoIP system, fully distributed and highly scalable
- Based on two PCI cards for compatibility with existing analog infrastructure
- Full design including architecture, requirements, technical design documentation, and test plans for hardware, firmware, and software
- Both FXO and FXS PCBs (6 layers) include 4 line interfaces each, with protections (IEC 60950-1)
- Firmware for DSP and microcontroller for each board with custom bare-metal operating system
- DSP firmware features line echo cancellation (G.168), tone detection, and compression (A-law, µ-law, G.729, G.723.1)
- FPGA-based glue logic for interfacing between microcontroller, DSP, and host PC
- Scalable Database server and interface compatible with ODBC, MySQL, PostgreSQL, Microsoft Access, and SQL Server
- Device drivers, helper APIs, system services, and user software
- Compatible with H.323 through OpenH323 endpoints
