| 摘要 |
The object of the present invention is to provide an economic alternative to the current systems for sending messages, both text messages (SMS) and multimedia messages (MMS), between telecommunication network users. For this purpose, use is made of the advantages of call signaling protocols, specifically the duration of the ringing tone in an unanswered call (commonly called“missed call”) for sending messages which are precoded and known by the system users. The method and system for sending messages between telephony terminals are designed such that they are used by the user in a very similar manner to the sending/receiving SMS and MMS messages, providing a simple and economic method (without associated direct cost) for sending messages between telephony users.
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