Joke Collection Website - Public benefit messages - Is the SMS gateway free?
Is the SMS gateway free?
If you are SP, it is free to send downlink information to users through mobile or Unicom gateway. Of course, it is up to SP to decide whether to charge or not.
If your mobile phone often receives commercial short messages (such as replying to a certain number) from SP short numbers (that is, SP codes, not ordinary mobile phone numbers), you can check the photos of "friends"-this is purely illegal inducement! ! ), then you know that the SMS gateway is free.
SP, the abbreviation of Service Provider, can be literally translated as service provider.
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