MXNL03000015A - Method, system and node for sending short messages between different telecommunication network operators. - Google Patents

Abstract

A method, system and node for sending and receiving short messages SMS and/or MMS between subscribers that pertain to different network operators being located within a telecommunication network, which is formed by at least a first and a second network. Both networks include prepaid short messages interface nodes, which are adjacent therebetween. The first and second network operators have a prepayment agreement for the use of their network resources for sending short messages by means of their respective networks. A short message is originated by a first network subscriber, which is received by a second network subscriber; the first network determines that the message destination is a second network. From the perspective of the prepaid short messages interface node that is adjacent to the second network, the first network is verified for available credit on the prepaid account so as to be able to use the resources of the second network in order to send a short message, thereby the pr epaid short messages interface node of the first network sends the short message to the prepaid short messages interface node, which are adjacent to the second network, thereby the same delivers the short message to the second network subscriber.

Description

METHOD, SYSTEM AND NODE TO SEND SHORT MESSAGES AMONG DIFFERENT OPERATORS OF TELECOMMUNICATIONS NETWORKS TECHNICAL FIELD OF THE INVENTION This invention relates generally to telecommunications networks. More particularly to the service of sending short alphanumeric or multimedia application messages (better known by their acronym in English of SMS "short messages service" and MMS "multimedia messages service" respectively); where these messages are sent between subscribers that are being served by different operators of telecommunications networks.

BACKGROUND OF THE INVENTION At present, mobile telecommunications services are increasing in demand. Traditionally, these services include mobile telephony and notification or alert services, in which a subscriber of these services can make telephone calls or send and / or receive short alphanumeric or text messages or multimedia applications commonly known as SMS short messages ( short messages service) or short messages MMS (multimedia messages service), which are displayed on the screen of the mobile device of the receiving subscriber, and which are referred to as short messages from now on during the description.

Nowadays, it is common for telecommunication network operators to offer post-paid or prepaid services for mobile telephone calls between their respective subscribers, but in the case of post-paid or prepaid subscribers who wish to be users of the short message service SMS and / or MMS, are limited by not seeing the concept of SMS and / or MMS short messages between operators applied. i The SMS or MMS short message service allows a bidirectional communication, because for example, the subscriber that sends an SMS and / or MMS can be notified of the correct sending of his message or of any failure during the sending; such that the receiving subscriber does not belong to the same operator of the telecommunications network used by the subscriber who originated the message. This problem is accentuated more in the case of subscribers who, because they are users of this service, are subject to a telecommunications network operator, who usually do not have an agreement with other telecommunication network operators to offer interoperability of transmission services. SMS and / or MMS short messages among its subscribers.

Another common problem among subscribers to a short message service is that only their short messages sent or received are stored in their mobile device because the service provider reflected in a network operator only stores them in a temporary way for the purposes of managing the message within the network; which are subsequently discarded without leaving any support for the subscriber, so the subscriber is forced to keep them stored in his mobile device and limited by the memory that said mobile device may contain for this purpose, so it is very common that Subscribers lose important short messages because they have limited resources for this purpose. In addition to this problem, subscribers of the short message service are forced to only use their mobile device to make or receive telephone calls and / or to be able to send or receive short messages.

Also today, it is common for telecommunications network operators to have agreements with each other to offer interoperability of their services between their networks and their subscribers, but generally these agreements are in the form of postpaid, that is, the use of infrastructure of a telecommunications network owned by a specific operator, by an operator outside this network that requires to use its resources temporarily to allow an interoperability of services for its subscribers, has to be paid after a certain term and previously established among the operators through, for example, a rate of use or by the simple balance of accesses to their network resources among themselves, that at the end of the period established by the contract, the surpluses are paid to the operator who has the balance in their favor or through the exchange of access to resources of the telecommunications network owned by the debtor operator.

In this case, the problem associated with this lack of interoperability among network operators is the lack of an open platform infrastructure that does not depend on a specific communication protocol to allow easy access, and communication between telecommunications network operators. and the control of services as well as the control of costs or charges effected by said interoperability, wherein said open platform infrastructure may have application in a service of sending short messages and that said quality of prepayment may be applied by the network operators in such a way that subscribers served and subscribed by different telecommunication network operators can send or receive short messages to each other in a postpaid or prepaid manner, and that network operators can control their costs by accessing resources from other telecommunications network owned by another operator in a prepaid manner such It allows the operators to control the credit balance established by the use of third-party resources owned by another network operator from their perspective.

In order to allow subscribers not to be limited to only sending or receiving short messages to or from subscribers belonging to the same telecommunication network operator, but they can send and receive short messages from or to other subscribers belonging to other operators of telecommunications networks as well as that each subscriber can have backup of their short messages sent and received and that is not limited to using only their mobile device to send or receive such short messages. And also that telecommunications network operators can offer interoperability for short message service between their respective networks in a prepaid and controlled manner from their perspective to allow access to their resources through an open platform infrastructure that allows the use of several communication protocols, the present method, system and node is developed to offer the service of short messages between different operators of telecommunications networks regardless of the communication protocol.

DESCRIPTION OF THE INVENTION The characteristic details of this method, system and node for the sending of SMS or MMS short messages between different operators of telecommunications networks are described in the following paragraphs as well as in the figures that accompany it, which are with the purpose of defining said method, system and node but without limiting the scope of these.

Fig. 1 illustrates a block diagram of a telecommunications network for sending SMS and / or MMS short messages between different operators of telecommunications networks.

Fig. 2 shows the structure of the interface node for sending SMS and / or MMS short messages between different operators of telecommunications networks.

Fig. 3 illustrates a signaling sequence diagram of the method for sending SMS and / or MMS short messages between different telecommunication network operators.

Fig. 1 illustrates a block diagram of a telecommunications network for sending SMS and / or MMS short messages between different telecommunication network operators. In this case, a telecommunications network 10 is composed of a first telecommunications network 20 operated by a first telecommunications network operator and a second telecommunications network 30 operated by a second telecommunications network operator; wherein the first and second network operator have a prepayment agreement for the use of their network resources for sending SMS or MMS short messages through their respective networks. The first telecommunications network 20 is composed of subscribers 40 (which can be postpaid or prepaid subscribers), a short message center 50 (MC), a prepaid platform 90 (for the case where the subscribers 40 are prepaid) and a prepaid short message interface node 70 (PREPSMS) and a prepayment module for operators 100. The second telecommunications network 30 is composed of a PREPSMS 120, a prepayment module for operators 130, an MC 150, by subscribers 160 (which they can be postpaid or prepaid subscribers), and a prepaid 180 platform.

In the first telecommunications network 20, at least one mobile telephone exchange (not shown) serves as a means of accessing the telecommunications network through its radio bases attached (not shown) to the subscribers 40, said mobile telephone exchange connects to subscribers 40 to MC 50, which serves as a means of controlling short messages sent or received by subscribers 40; the MC 50 is connected in turn to the PREPSMS 70 through a first communication protocol 60, such as the "Short Message Peer to Peer" (SMPP) protocol.

The PREPSMS 70 in turn has an interface to the prepaid platform 90 through a second communication protocol 80, such as the intelligent network application protocol (INAP). Said prepaid platform 90 controls the prepaid balances of the subscribers 40 (considering them as prepaid subscribers) belonging to the first telecommunications network 20. The PREPSMS 70 serves as the border node of the first telecommunications network 20 to the second network of telecommunications 30 regarding the sending and control of SMS and / or MMS short messages by the first telecommunications network 20 to the second telecommunications network 30. The PREPSMS 70 is interconnected to the adjacent PREPSMS 120 belonging to the second network of telecommunications 30 through a third communication protocol 110, such as the "Hyper Text Transfer Protocol" (HTTP) or the SMPP. The PREPSMS 70 has included, separately or separately, the prepayment module for operators 100 that controls the prepaid credit available by the second network operator from the perspective of the first telecommunications network 20 for the sending of short messages SMS and / or MMS from the second telecommunications network 30 through the network resources of the first telecommunications network 20. Also the PREPSMS 70 has an open interface 190 for the Internet network 210 so that the subscribers 40 through a WEB 200 application send or access messages short, or content providers 220 access the system for the proper operation of short messages MMS.

With respect to the second telecommunications network 30, the PREPSMS 120 is interconnected to the adjacent PREPSMS 70 of the first telecommunications network 20 through the HTTP protocol. Adjacent or separate PREPSMS 120 is interconnected to the prepaid module for operators 130 which controls the prepaid credit available by the first network operator from the perspective of the second telecommunications network 20 for the sending of short messages SMS and / or MMS from the first telecommunications network 20 through the network resources of the second telecommunications network 30. In turn, the PREPSMS 120 is interconnected to the prepaid platform 180 through the INAP protocol and the MC 150 through the protocol SMPP. The MC 150 has an interface to the subscribers 160 through at least one mobile telephone exchange and their respective radio bases (not shown). PREPSMS 120 also has an open interface 190 for Internet network 210 so that prepaid subscribers 160 through a WEB 200 application send or access SMS and / or MMS short messages; or the content providers 220 access the system for the proper operation of the MMS short messages.

With respect to Fig. 2, this shows the structure of the interface node for sending SMS and / or MMS short messages between different operators of telecommunications networks. The PREPSMS 70 is composed of a first communication channel 230, a routing module 240, a second communication channel 250, a protocol conversion module 260, a third communication channel 270, a prepayment module for operators 100, a prepaid database for operators 280, a module for the control and storage of short messages 290, a database for the storage of short messages 300 and an open interface 310.

For the first communication channel 230, using a first communication protocol 60, for example: SMPP, the short messages coming from the MC 50 which are originated by the subscribers 40 are received for the subscribers 160 of the second telecommunications network.; or the short messages are sent to the subscribers 40 via the MC 50 originated by the subscribers 160 of the second telecommunications network 30.

The routing module 240 determines the appropriate route of the adjacent PREPSMS 120 (belonging to the second telecommunications network 30), where the short messages originating from the subscribers 40 of the first telecommunications network 20 are directed.

Through the second communication channel 250, by using a second communication protocol 80, for example INAP, the prepaid platform 90 of the subscribers 40 (if these are prepaid subscribers) belonging to the first telecommunications network is accessed. twenty.

The third communication channel 270, using a third communication protocol 110, for example HTTP or SMPP, serves to request credit authorization for the first telecommunications network 20 (from the perspective of the second telecommunications network 30) to the adjacent PREPSMS 120 for sending short messages (originated by the subscribers 40) to the subscribers 160 through the resources of the second telecommunications network 30. Also by the third communication channel 270, by using a third communication protocol 110, the short messages are sent from the MC 50 that are originated by the subscribers 40 destined to the subscribers 160 of the second telecommunications network 30; or short messages are received from the subscribers 40 originated by the subscribers 160 of the second telecommunications network 30.

The conversion module 260 converts the short messages received through the first communication channel 230 in the format of the first communication protocol 60 to the format of the third communication protocol 110, for when the short message is originated in the first telecommunications network 20 with destination to the second telecommunications network 30; or converts the short messages received through the third communication channel 270 in the format of the third communication protocol 110 to the format of the first communication protocol 60, for when the short message is originated in the second telecommunications network 30 for the first telecommunications network 20; in both cases, when the first and third communications protocols 60 and 110 are different.

The prepayment module for operators 100 controls the prepaid credit available for each network operator for their respective telecommunications networks (for example, from the second telecommunications network 30) from the perspective of the first network operator, for when the use of network resources of the first telecommunications network 20 for sending SMS and / or MMS short messages originating in the second telecommunications network 30 destined to the subscribers 40 of the first telecommunications network 20. This prepaid module for operators 100 updates the prepaid credit balances available for each network operator of the prepaid database for operators 280. Said prepaid module for operators 100 and its prepaid database for operators 280 may be included or separated from PREPSMS 70 The messages received or sent by the PREPSMS 70 are stored forming a historical record of short messages SMS and / or MMS sent or received by each subscriber 40 (belonging to the first telecommunications network 20) in the database for storage of short messages 300 through the short message storage and control module 290, said database can be accessed by each subscriber 40 using a WEB interface through an open interface 310. Also by the open interface 310 the content providers for the proper operation of the MMS short messages can access the PREPSMS 70.

Now in Fig. 3 a signaling sequence diagram of the method for sending SMS and / or MMS short messages between different operators of telecommunications networks is illustrated. In this case, a telecommunications network composed of a first telecommunications network 20 operated by a first telecommunications network operator and a second telecommunications network 30 operated by a second telecommunications network operator; wherein the first and second network operator have a prepayment agreement for the use of their network resources for sending SMS and / or MMS short messages through their respective networks. In the first telecommunications network 20 is the subscriber 40 (which in this case is a prepaid subscriber), an MC 50, a prepaid platform 90, a PREPSMS 70, a control and storage module 290 and its database for storage of short messages 300. The second telecommunications network 30 is composed of a PREPSMS 120, a prepayment module for operators 130, its prepaid database for operators 320, a control and storage module 330 and its database for storage of short messages 340, an MC 150 and a subscriber 160.

The subscriber 40 originates a short message SMS 350 destined to the subscriber 160, in said short message the prepaid subscriber 40 indicates by means of a function code that the subscriber 160 belongs to a second telecommunications network 30 or simply the subscriber 40 marks the digits identifying the subscriber 160. The short message SMS 350 is received by the MC 50 according to the current state of the art; the MC 50 transfers the short message SMS 350 (in the message 360) in a format of the first communication protocol (for example SMPP) to the PREPSMS 70. The PREPSMS 70 receives the short message SMS 350 in SMPP format through the first channel of communication 230 by temporarily storing it and obtaining the data of the originator 40 of the message (all this in step 370).

Once the data of the subscriber 40 is obtained, the PREPSMS 70 determines the type of charging system to which the subscriber 40 originator of the short message is inscribed. If the PREPSMS 70 identifies that the subscriber 40 is a prepaid subscriber then it requests prepaid credit authorization from the subscriber 40 to the prepaid platform 90 in step 380. In step 390 in the prepaid platform it is determined that the subscriber 40 has sufficient credit and the response is sent in step 400. Under the determination that the subscriber 40 has sufficient credit, the PREPSMS 70 determines in step 410 in its routing module 240 the appropriate route to the adjacent PREPSMS 120 ( belonging to the second telecommunications network 30 serving the subscriber 160) to deliver the short message 350. The appropriate route can be determined by digit analysis of the digits of the subscriber 160 marked by the subscriber 40 or by analyzing the code of function introduced by the subscriber 40.

In step 420, the PREPSMS 70 requests the adjacent PREPSMS 120 credit authorization for sending the short message 350 to the subscriber 160 through the network resources of the second telecommunications network 30 (through the third communication channel 270 using the third communication protocol 110, for example HTTP). Upon receipt of the request for credit authorization in the PREPSMS 120, it is determined in step 430 in the prepayment module for operators 130 whether the first operator of the first telecommunications network 20 has sufficient balance in its credit from the perspective of the second telecommunications network 30 for sending the short message 350 through its network resources. Under the determination that there is sufficient credit, the prepaid module for operators 130 deducts from the total credit of the prepaid account of the first operator, the charge for sending the short message through the resources of the second network and updates the credit balance of the prepaid account of the first operator in the prepaid database for operators 320 (all this happens in steps 440, 450 and 460 respectively). And send the credit authorization response from PREPSMS 120 to PREPSMS 70 in step 470.

Once the credit authorization is received in the PREPSMS 70, in step 480, the PREPSMS 70 determines whether the short message requires conversion of the communication protocol and converts the. short message from the first communication protocol 60 to the third communication protocol 110 (for example from the SMPP to HTTP) using the conversion module 260, under the determination that the short message requires communication protocol conversion; and in step 490 the PREPSMS 70 sends the short message SMS 350 (in format of the third communication protocol 110) to the adjacent PREPSMS 120 via the third communication channel 270.

Once the short message is sent to the PREPSMS 120, the PREPSMS 70 proceeds to form the historical record of messages sent to the subscriber 40 through the module for the control of storage of short messages 290 and its database of storage of short messages 300 (all this happens in steps 500 and 510 respectively). In step 520, the PREPSMS 70 instructs the prepaid platform 90 to update the subscriber's prepaid credit balance 40.

Once the short message 350 is received by the PREPSMS 120, in step 530, the PREPSMS 120 determines whether the short message requires communication protocol conversion and converts the short message of the third communication protocol 110 to the first communication protocol 60 (for example from HTTP to SMPP) using the conversion module, under the determination that the short message requires communication protocol conversion; and in step 540 the PREPSMS 120 sends the short message SMS 350 (in format of the first communication protocol 60) to the MC 150 through the first communication communication channel of the PREPSMS 120. Once the MC 150 receives the short message SMS 350, this is delivered to the subscriber 160 according to the current state of the art in step 550.

Once the short message is sent to the MC 150, the PREPSMS 120 proceeds to form the historical record of messages received for the subscriber 160 through the module for the control of storage of short messages 330 and its database of storage of short messages 340 (all this happens in steps 560 and 570).

It is important to mention that the scenario described above under minimal adaptations can be focused on postpaid subscribers and used for the sending of short MMS messages. Based on this, the modifications of the described application environments, as well as the alternative application environments, will be considered evident to a person skilled in the art of the art under the description of the method, system and node. It is therefore contemplated that the claims encompass said modifications and alternatives that are within the scope of the method, system and node, or their equivalents.

Claims (46)

1. A method for sending short messages between subscribers belonging to different network operators within a telecommunications network including at least a first and a second network, the first network operated by a first network operator includes a prepaid message interface node, the second network operated by a second network operator includes a prepaid message interface node adjacent to the prepaid message interface node in the first network, wherein the first and second network operator have a prepayment agreement for the use of their resources network for sending short messages through their respective networks. Said method comprises the steps of: Originating a short message by a subscriber belonging to the first network, wherein the short message indicates that it will be sent to a subscriber belonging to the second network; determining, in the prepaid message interface node in the first network, that the short message is sent to the second network to verify from the perspective of the prepaid short message interface node adjacent to the second network if the first network has available credit of your prepaid account to have authorization to use resources of the second network for sending the short message; sending the short message from the prepaid short message interface node of the first network to the adjacent prepaid short message interface node in the second network; and delivering the short message to the recipient subscriber belonging to the second network.

2. The method of claim 1, wherein the subscriber originator or recipient of the short message is a postpaid or prepaid subscriber.

3. The method of claim 1, wherein the short message is a short messages service (SMS) message or a multimedia messages service (MMS) message.

4. The method of claim 1, wherein the step of originating a short message by a subscriber belonging to the first network, wherein the short message indicates that it will be sent to a subscriber belonging to the second network, includes the steps of: subscriber a short message on its terminal indicating the address of the recipient subscriber; transmit the short message from the terminal to the message center in the first network; sending the short message from the short message center to the prepaid short message interface node in the first network through a first communication protocol and determining in the short message interface node prepaid in the first network, the type of system of collection to which the subscriber originator of the short message is registered.

5. The method of claim 4, wherein the step of forming the subscriber a short message at its terminal indicating the address of the recipient subscriber, further includes the step of indicating whether this is a subscriber belonging to the second different network operator.

6. The method of claim 5, wherein the indicator that the recipient subscriber belongs to the second network operator is included in the short message by means of a function code.

7. The method of claim 4, wherein the first communication protocol comprises the Short Messages Peer to Peer (SMPP) protocol.

8. The method of claim 4, wherein the step of determining in the short message interface node prepaid in the first network, the type of charging system to which the subscriber originator of the short message is enrolled, includes the steps of: Extracting of the short message in the short message interface node prepaid in the first network the subscriber data originating from the short message; determine that the subscriber originator of the short message is a prepaid subscriber; request, from the prepaid short message interface node to the prepaid platform of the first network, credit authorization for sending the short message based on the subscriber data originating from the short message through a second communication protocol, under the determination that the originator of the short message is a prepaid subscriber; determine on the prepaid platform of the first network based on the request for credit authorization, if the subscriber originator of the short message has sufficient credit balance and send the credit authorization response from the prepaid platform of the first network to the prepaid short message interface node, under the determination that the originating subscriber of the message has sufficient credit balance.

9. The method of claim 8, wherein the second communication protocol comprises the intelligent network application protocol (INAP).

10. The method of claim 1, wherein the step of determining in the interface node of prepaid messages in the first network that the short message is sent to the second network includes the step of determining the route to the message interface node prepaid shorts adjacent to the second network to which the short message will be sent.

11. The method of claim 1, wherein the step of verifying from the perspective of the prepaid short message interface node adjacent to the second network if the first network has credit available from its prepaid account to have authorization to use the resources of the second network for sending the short message, includes the steps of: requesting, from the prepaid short message interface node of the first network to the interface node prepaid short messages of the second credit authorization network for sending the short message to through the resources of the second network through a third communication protocol; determine in the adjacent prepaid short message interface node of the second network based on the credit authorization request, if the first operator of the first network has sufficient balance in its credit from the perspective of the second network for sending the short message through the resources of the second network; and sending the credit authorization response from the adjacent prepaid short message interface node of the second network to the prepaid short message interface node of the first network, under the determination that the first operator has sufficient balance in its credit .

12. The method of claim 11, wherein the third communication protocol comprises the Hyper Text Transfer Protocol (HTTP).

13. The method of claim 11, wherein the step of determining in the adjacent prepaid short message interface node of the second network based on the credit authorization request, if the first operator of the first network has sufficient balance in its Credit from the perspective of the second network for sending the short message through the resources of the second network, includes the steps of: verifying in the interface node of prepaid short messages of the second network, if the first operator has enough credit; discount of the total credit of the prepaid account of the first operator, the charge for sending the short message through the resources of the second network, under the determination that the first operator has sufficient credit; and update the credit balance of the prepaid account of the first operator.

14. The method of claim 1, wherein the step of sending the short message from the prepaid short message interface node of the first network to the adjacent prepaid short message interface node in the second network includes the steps of: determining in the prepaid short message interface node of the first network, if the short message requires communication protocol conversion; converting in the interface node of prepaid short messages of the first network, the short message of the first communication protocol to the third communication protocol, under the determination that the short message requires communication protocol conversion; sending the short message from the prepaid short message interface node to the adjacent short message interface node of the second network through the third communication protocol.

15. The method of claim 14, wherein the first communication protocol and the third communication protocol are the same.

16. The method of claim 14, wherein the first communication protocol and the third communication protocol are different.

17. A system for sending short messages between subscribers belonging to different network operators within a telecommunications network including at least a first and a second network, the first network operated by a first network operator includes a prepaid message interface node, the second network operated by a second network operator includes a prepaid message interface node adjacent to the prepaid message interface node in the first network , wherein the first and second network operator have a prepayment agreement for the use of their network resources for sending short messages through their respective networks. Said system comprises: Means for originating a short message by a subscriber belonging to the first network, wherein the short message indicates that it will be sent to a subscriber belonging to the second network; means for determining in the interface node of prepaid messages in the first network that the short message is sent to the second network; means for verifying from the perspective of the prepaid short message interface node adjacent to the second network if the first network has available credit from its prepaid account to have authorization to use resources from the second network for sending the short message; means for sending the short message from the prepaid short message interface node of the first network to the adjacent prepaid short message interface node in the second network; and means for delivering the short message to the recipient subscriber belonging to the second network.

18. The system of claim 17, wherein the subscriber originator or recipient of the short message is a postpaid or prepaid subscriber.

19. The system of claim 17, wherein the short message is a short messages service (SMS) message or a multimedia messages service (MMS) message.

20. The system of claim 17, wherein the means for originating a short message by a prepaid subscriber belonging to the first network, wherein the short message indicates that it will be sent to a subscriber belonging to the second network, includes: Means for forming the prepaid subscriber a short message on his terminal indicating the address of the recipient subscriber and indicating if this is a subscriber belonging to the second different network operator; means for transmitting the short message from the terminal to the message center in the first network; means for sending the short message from the short message center to the prepaid short message interface node in the first network through a first communication protocol and means for determining in the short message interface node prepaid in the first network, the type of collection system to which the subscriber originator of the short message is inscribed.

21. The method of claim 20, wherein the means for forming the subscriber a short message at its terminal indicating the address of the recipient subscriber further includes means for indicating whether this is a subscriber belonging to the second different network operator.

22. The system of claim 21, wherein the indicator that the recipient subscriber belongs to the second network operator is included in the short message by means of a function code.

23. The system of claim 20, wherein the first communication protocol comprises the Short Messages Peer to Peer protocol (SMPP).

24. The system of claim 20, wherein means for determining in the short message interface node prepaid in the first network, the type of charging system to which the subscriber originating the short message is inscribed, includes: Means for extracting from the message short in the prepaid short message interface node in the first network the prepaid subscriber data originating from the short message; means for determining that the subscriber originator of the short message is a prepaid subscriber; means for requesting, from the prepaid short message interface node to the prepaid platform of the first network, credit authorization for sending the short message based on the data of the originator of the short message through a second communication protocol, under the determination that the subscriber originator of the short message is a prepaid subscriber; means to determine in the prepaid platform of the first network based on the request for credit authorization, if the subscriber originator of the short message has sufficient credit balance and means to send the credit authorization response from the prepaid platform from the first network to the prepaid short message interface node, under the determination that the originating subscriber of the message has sufficient credit balance.

25. The system of claim 24, wherein the second communication protocol comprises the intelligent network application protocol (INAP).

26. The system of claim 17, wherein the means for determining in the interface node of prepaid messages in the first network that the short message is sent to the second network includes means for determining the route to the short message interface node prepaid from the second network to which the short message will be sent.

27. The system of claim 17, wherein the means for verifying from the perspective of the prepaid short message interface node adjacent to the second network if the first network has credit available from its prepaid account for authorization to use the resources of the second network for sending the short message, includes: Means for requesting, from the prepaid short message interface node of the first network to the adjacent prepaid short message interface node of the second network, credit authorization for sending the short message through the resources of the second network through a third communication protocol means to determine in the adjacent prepaid short message interface node of the second network based on the credit authorization request, if the first operator of the first network has sufficient balance in its credit from the perspective of the second network for sending the short message through the resources of the second network; and means for sending the credit authorization response from the adjacent prepaid short message interface node of the second network to the prepaid short message interface node of the first network, under the determination that the first operator has sufficient balance in your credit

28. The system of claim 27, wherein the third communication protocol comprises the Hyper Text Transfer Protocol (HTTP) protocol.

29. The system of claim 27, wherein the means for determining in the adjacent prepaid short message interface node of the second network based on the credit authorization request, if the first operator of the first network has sufficient balance in its Credit from the perspective of the second network for sending the short message through the resources of the second network, includes: Means to verify in the interface node of prepaid short messages of the second network, if the first operator has enough credit; means to deduct from the total credit of the prepaid account of the first operator, the charge for sending the short message through the resources of the second network, under the determination that the first operator has sufficient credit; and means to update the credit balance of the prepaid account of the first operator.

30. The system of claim 17, wherein the means for sending the short message from the prepaid short message interface node of the first network to the prepaid short message interface node adjacent to the second network includes: Means for determining on the prepaid short message interface node of the first network, if the short message requires communication protocol conversion; means for converting in the prepaid short message interface node of the first network, the short message of the first communication protocol to the third communication protocol, under the determination that the short message requires communication protocol conversion; means for sending the short message from the prepaid short message interface node to the adjacent short message interface node of the second network through the third communication protocol.

31. The system of claim 30, wherein the first communication protocol and the third communication protocol are the same.

32. The system of claim 30, wherein the first communication protocol and the third communication protocol are different.

33. An interface node for sending short messages between different telecommunications network operators, wherein the interface node comprises: A first communication channel using a first communication protocol to accept a short message from a message handling entity shorts belonging to a first network operator; a second communication channel using a second communication protocol to access the prepaid platform of the subscribers belonging to a first network operator; a routing module for determining the route to the adjacent short message interface node of a second network operator to which the short message will be sent; a prepayment module for operators to control the prepaid credit of a second network operator from the perspective of the short message interface node of the first network belonging to the first network operator; a third communication channel using a third communication protocol for accessing the prepaid module of the adjacent prepaid short message interface node of the second network and sending the short message to said node; and a protocol conversion module for converting the short message from the first communication protocol to the third communication protocol and vice versa.

34. The interface node of claim 33, wherein the short message is a short messages service (SMS) message or a multimedia messages service (MMS) message.

35. The interface node of claim 33, wherein the first communication protocol and the third communication protocol are the same.

36. The interface node of claim 33, wherein the first communication protocol and the third communication protocol are different.

37. The interface node of claim 33, wherein the first communication protocol comprises the Short Messages Peer to Peer protocol (SMPP).

38. The interface node of claim 33, wherein the second communication protocol comprises the intelligent network application protocol (INAP).

39. The interface node of claim 33, wherein in addition to the prepaid operator module for controlling the prepaid credit of a second network operator from the perspective of the short message interface node of the first network belonging to the first network operator includes a prepaid database for operators.

40. The interface node of claim 33, wherein the prepaid database for operators is included or separated from the interface node.

41. The interface node of claim 33, wherein the third communication protocol comprises the Hyper Text Transfer Protocol (HTTP) protocol.

42. The interface node of claim 33, wherein said interface node further comprises an interface open to its subscribers for sending short messages through a WEB application.

43. The interface node of claim 33, wherein said interface node further comprises an open Internet interface to multimedia message service (MMS) content providers.

44. The interface node of claim 33, wherein it further comprises a control and storage module for the short messages sent and received by each prepaid subscriber belonging to the first network operator.

45. The interface node of claim 33, wherein a control and storage module of the short messages sent and received by each prepaid subscriber belonging to the first network operator includes a message storage database.

46. The interface node of claim 45, wherein the message storage database is included or separated from the interface node.