Can I send a short message to the same user once a second?

No, the same number, the same content, can send 1 at most in 30 seconds.

There are two kinds of short messages: one is text or digital information sent or received directly by users through mobile phones or other telecommunication terminals, and the number of characters that users can receive and send short messages at a time is 160 English or digital characters or 70 Chinese characters.

One is MMS. Its biggest feature is that it supports multimedia functions and can transmit comprehensive content and information, including text, images, sounds, data and other multimedia formats.

Advantages of MMS

MMS advertising covers a wide range, directly facing the consumer groups. At present, the latest statistics show that the number of mobile phone users in China has reached 400 million, the penetration rate of mobile phones has reached 30 per 100 people, and the number of MMS mobile phone users is nearly 1 100 million. With the upgrading of mobile phones and the further popularization of MMS mobile phones, there will be more and more users.

Compared with the low yield and unpredictability brought by the multiple selectivity of traditional media, it has incomparable innate advantages such as high coverage frequency and large coverage. High arrival rate, strong timeliness, reading rate 100%.

After the successful delivery of MMS advertisements, users will browse in their spare time even if they don't have time to watch them at that time, which is incomparable to the fleeting TV advertisements and countless newspaper advertisements in terms of timeliness.