论文部分内容阅读
1997年5月23日,天津市邮电管理局向深圳华为技术有限公司订购C&C08数字程控交换机建设天津综合业务数字网(ISDN)合同签字仪式在天津举行。 C&C08数字程控交换机具有灵活的组网能力,利用其多级模块组网的特点可以将具有ISDN接口的用户模块和中继模块拉远,实现ISDN覆盖,也可以很方便地将目前网上运行的远端模块升级为具有ISDN功能的模块。同时,能够实现ISDN用户板与模拟用户板混插,而ISUP与普通数
On May 23, 1997, Tianjin Postal Management Bureau ordered Shenzhen C & C08 Digital Program-controlled Switch from Shenzhen Huawei Technologies Co., Ltd. to sign the signing ceremony of Tianjin Integrated Services Digital Network (ISDN) contract in Tianjin. C & C08 digital program-controlled switches with flexible networking capabilities, the use of its multi-level modular networking features can be ISDN interface with user modules and relay modules to pull away to achieve ISDN coverage, you can also easily run the current Internet far Upgrade the end module to an ISDN capable module. At the same time, to achieve ISDN user board and analog user board mixed insertion, and ISUP and ordinary number