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

Caller ID means that when there is an incoming call, the phone screen can show which number is calling you. Call reminder means that when you have missed calls, the mobile phone automatically reminds you of missed calls or text messages with lights or music every few minutes. The communication company also has a call reminder service. For example, when your mobile phone is turned off, there is a new call. When you turn it on, the communication company will send you a text message to inform you what number and when to call. I hope to adopt.