SCPs are centralized databases that provide enhanced services (e.g., 800 and 900 calls, calling card validation and fraud protection) and support operations to another SCP or SSP.

• SCP 是集中式数据库，提供增强服务的（例如，800 和 900 呼叫、呼叫卡验证和欺诈防护）并支持对其他 SCP 或 ssp 进行的操作。