Design and Implementation of VoIP Equipment including Telephone Function for Home Gateway Connection

전화기 기능을 포함한 홈 게이트웨이 접속용 VOIP 장비 설계 및 구현

  • 이용수 (안동대학교 전자정보산업학부) ;
  • 정광욱 (구미1대학 정보통신과) ;
  • 정중수 (안동대학교 전자정보산업학부)
  • Published : 2004.12.01


Internet is absolutely contributed to information technology revolution nowadays. Internet services such as voice and data, etc. are provided home or small office via home gateway. The development of communication equipment via home gateway is implemented rapidly, and its product various. This paper presents the design and implementation of the VoIP equipment including the telephone function based on the embedded environment and being connected to the home gateway and the PC because of taking 2-ethernet LAN ports. As developing environment, the STLC1502 developed at ST Microelectronics as single chip solution, VxWorks as RTOS, and C language as coding mechanism are used. The verification of the developed systems for the voice test is carried out for the gatekeeper via Internet. The performance parameter is considered as the call processing capacity measuring the time of the call setup and clearing, and the data processing capacity for the file transfer. As a call setup and clearing is about 95ms, the call processing capacity is about 10 calls per second. The data processing capacity is 5.7Mbps in case of file transfer of server and client environment. Therefore the performance result is satisfied in the aspect of the call processing time and the data transfer time in Internet.