为服务提供商提供了统一的短信接入平台，也实现了不同协议的运营商网关之间的短信互通。
A uniform short message access platform is provided for service providers. Inter-communication between different operators' short message gateways based on different protocols is achieved as well.
软交换涉及的产品主要有负责核心控制的软交换设备、应用服务器、媒体服务器、接入网关、中继网关、信令网关、IAD设备。
Products softswitch involves mainly include: softswitch equipment for core control, application server, media server, access gateway, relay gateway, signaling gateway, and IAD equipment.
在获得会话信息之后，目标系统的网关从源系统的网关中获取与接入终端的数据服务相关的上下文信息。
After the session information is acquired, a gateway of the target system acquires context information related to a data service of the access terminal from a gateway of the source system.
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