What's the difference between caller ID and caller ID?

Caller ID and caller ID are different services, which can be understood from their definitions.

caller ID

Caller display on mobile phone refers to providing the called customer with the identification number information of the calling customer, that is, when someone calls you, your phone number will be displayed on your mobile phone, and you can decide whether to answer the call or not to avoid unnecessary disturbance and trouble.

Call reminder

Call reminder means that when your mobile phone is turned off, out of service, busy or dead, all incoming calls will be transferred to the call reminder service platform. When the phone is turned on or returned to normal standby state, the system will automatically send the missed calls to your phone in the form of short messages.