A Study on the Technology for ISDN Basic Rate Access(BRA) ISDN基本速率接入技术研究
This paper describes an interface architecture of ISDN basic rate access interface ( 2B + D ) for existing switching systems. 本文主要描述为交换机提供(2B+D)基本速率入口的ISDN接口的结构。
ISDN Basic Rate Access(BRA) Interface for Existing Switching Systems 现有程控交换机的ISDN基本速率接口