"SMS"的定义和意义

What is "Short Message Service"?

Short Message Service (SMS) is a cellular service that allows users to send and receive short text messages on mobile phones. SMS messages are typically limited to 160 characters and can be used for personal communication, business notifications, or alerts. This service is widely available on all mobile phones and does not require an Internet connection, making it a reliable way to communicate. SMS is often used for quick exchanges of information and is a fundamental feature of mobile phones, even as more advanced messaging services and apps have become popular.