ELI5: Explain Like I'm 5

Vertical service code

Vertical service codes are special phone numbers that you can call to access different features on your phone. It's like a secret code that helps you do things quickly and easily.

For example, if you want to know the time, you can dial *#05# and your phone will tell you the time. Or if you want to block your number from showing up when you call someone, you can dial *67 before the phone number, and your number will be hidden.

Each vertical service code is designed to do something specific, like call forwarding, call waiting, or even making conference calls. They are easy to remember and can save you a lot of time and hassle when you need to use these features.

Just remember that not all phones or service providers may support all vertical service codes. So, if you are not sure if a certain code works on your phone, you can always check with your phone company.