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Headquartered in Shenzhen, P. R. China, and with offices around the country, Donjin has a record of technology innovations that have advanced the growth of the communications industry. These achievements include voice portal, TTS, call logging, CompactPCI form factor, high-density voice processing boards and SS7. More than one million ports have been used in China and many other countries. Voice and data system for enhanced communications services.

Building on this 10-years tradition, the company is dedicated to providing systems and system building blocks for communications infrastructure, applications, and services, particularly to the rapidly growing wireless, multimodal voice and data applications, and packet infrastructure markets.

Donjin is a ISO9001: 2000 certificate company.