4月 2 4日网络与交换标准研究组在北京召开第二次会议。从此次会议情况看 ,我国电信网络技术研究重点转向ＩＰ领域。会议上 ,审议了《ＩＰ电话业务编号》等三项标准送审稿。对《ＡＴＭ适配层 (ＡＡＬ)类型 2技术规范》等 3项标准征求意见稿征求了意见 ,并确定了我国今年在网络 April 24 Networking and Exchange Standards Research Group held its second meeting in Beijing. Judging from the conference situation, China’s telecommunications network technology research focus shifted to the IP field. Meeting, considered the “IP telephone service number” and other three standard draft for review. He solicited comments on the draft of the three standards of “ATM Adaptation Layer (AAL) Type 2 Technical Specification” and determined that our country will have a good cooperation network