ECS Telecom Co., Ltd. engages in the manufacture and sale of system and software for communication networks. It operates in the following businesses: Unified Communication, Internet Protocol (IP) Telephony, Contact Center Solution and Trading System. The Unified Communication business provides telephony applications, internet protocol recording and voice-over internet protocol(VOIP) support. The IP Telephony business develops internet protocol telephony solutions that enable voice communication through IP networks. The Contact Center Solution business offers contact center building and consulting, actionable intelligent recording solutions, self-service solutions and computer telephony integration solutions. The Trading System business develops systems used in foreign exchange and stock trading. It also engages in the enterprise voice solutions consulting, maintenance and training. The company was founded on October 7, 1999 and is headquartered in Seoul, South Korea.