Article: How Does SMS Service Actually Work?
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How Does SMS Service Actually Work?
Short message service (SMS) is a wildly popular feature available on most digital mobile phones. SMS allows users to send short messages to other cell phones. These short messages are called text messages. SMS was invented by a Finnish civil servant named Matti Makkonen. Many people understand what SMS is, but few understand how it actually works.
In SMS, messages are sent with a ?store-and-forward? mechanism. The messages are sent to a Short Message Service Center (SMSC), and then relayed to the intended recipient. If the messages do not reach the recipient upon the first attempt, then the SMSC will try again. It is important to understand that SMS delivery is not guaranteed. Many messages cannot be delivered, but the delivery is called ?best effort.? The amount of attempts...
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