76211745
Feb 16, 2001
Mar 30, 2004
Multi-service Internet Protocol (IP) access concentrators built out of integrated computer hardware and computer software for the transmission of voice and data via IP over Synchronous Digital Hierarchy (SDH) or Synchronous Optical Network (SONET) or Gigabit Ethernet (Gbeth), all for use in the field of network communications
Electrical and Scientific Apparatus