Joke Collection Website - Public benefit messages - Why is the SMS port number so long?
Why is the SMS port number so long?
The length of SMS port number is longer, because SMS gateway is provided by different operators.
The short message port number is usually very long, because the short message gateway is provided by different operators, and each operator has its own short message gateway interface. These interfaces need a unique identifier to distinguish different users and services, so long port numbers are needed to ensure uniqueness. In addition, long port numbers can provide more usability to meet the needs of different users to send short messages.
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