用户数据的分散管理以及不支持用户属性的触发业务是开展固网业务的最大障碍。为了解决这两个根本问题,可以在网络中引入用户信息寄存器(SIR),用来保存用户的号码信息和业务信息。SIR基于IN平台实现,和相关网元之间的连接基于IN/INAP协议。与其他方案相比,固定电话智能网方案采用成熟的技术和协议,对网络的改造小,而且能够适应网络向NGN演进的需要。
There are two main obstacles for providing fixed services--decentralization management of subscriber data and nonsupport for service invoked by subscribed information. A novel solution, which can provide those aforementioned features through introducing logic function entity named SIR to fixed network, is proposed in this article. SIR is used for protecting subscribers' number and service information. Based on IN platform, SIR interconnects with other network elements through IN/INAP. Compared with other solutions, this solution adopts widely used and mature technology and protocol to avoid drastic alteration to existing networks, and moreover it can meet the need of network evolution to NGN.