CPHS(Command PCN Handset Specification), 发源于英国,在欧洲和北美相对成熟.
通过卡内嵌入预激活命令以增强核心业务,主要业务有:
Operator Name String;
Voice mail waiting indication;
Call forwarding indication;
Emergency call (with dial 999);
Service Provider LOCK (SIM LOCK);
Voice mail number;
alternate line service;
alternate line service status;
customer service profile;