Text messaging has become part of the culture, even a short-hand language has emerged. One can order a pizza, or vote on American Idol, with a text message. Obama announced his Vice Presidential candidate with a text message to 10 million people, or at least that was his plan. An SMS message simultaneously sent to several million recipients, at the same time, is not yet possible, and that is probably good, in light of the Spamming occurring with SMS.
According to research by Nielsen Mobile, during the second quarter of 2008, the average U.S. cell phone user sent or received 204 voice phone calls per month and sent or received 357 text messages 대량문자 per month. Teenagers in the United States, on average, send and receive an average of more than 1,700 text messages per month.
SMS was originally developed to allow the deaf to use cell phones, and is similar to paging (does anybody still use a pager?). In the United States, the term is colloquially called “texting”, but in some parts of world, the term is “SMSing”. SMS is available on most cell phones and personal digital assistants (PDA), and is compatible with a wide range of networks (including 3G). However, not all text messaging systems use SMS. For example, the BlackBerry uses standard mail protocols such as SMTP over TCP/IP (internet protocol).
If the target cell phone is off-line, the Short Message Service Center (SMSC) will store the message for a later attempt. The message can be stored for several days. Successful message delivery is not guaranteed and the delay, or unfortunately, even the loss of a messages, is not uncommon. This most often occurs when sending messages between different networks. The sender of an SMS text message can receive a confirmation notifying them whether the message was successfully delivered.