KR20010098196A - Vms subscriber message transfer method between exchange - Google Patents

Abstract

The present invention relates to a method for transmitting a subscriber's mail of a voice mail system, wherein a request for transmission of a mail from a voice mail system connected to an exchange to a power exchange is performed. Transmitting a mail transmission start notification signal to a power exchange through a signal link when the state meets a preset condition; and when a mail transmission permission signal is received from the power exchange, recalling a call path on a trunk of a part of a general information communication network user part. It is formed in the exchange and the exchange period, and the subscriber mail provided by the voice mailbox system through the communication path is transmitted to the exchange.

Description

How to send subscriber's mail to voicemail system {VMS SUBSCRIBER MESSAGE TRANSFER METHOD BETWEEN EXCHANGE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exchange system, and more particularly, to a method for transmitting a subscriber mail (VoS), which is a subscriber mail.

Switching period signaling includes CAS (Channel Associated Signaling) R2 and CCS (Common Channel Signaling) NO.7. Since the CCS method is faster signaling than the CAS method, the CCS NO.7 method is generally adopted as the switching period signal transmission method. CCS NO.7 enables the relay call to be made to the subscriber by relaying the call and data call to the basic analog or digital subscriber.

Figure 1 shows a block diagram illustrating the transmission of the exchange period signal according to the prior art. Each exchanger A, B (2, 4) includes a number translation unit 10, a general call processing unit 12, an ISUP call processing unit 14, and a VMS unit 16, respectively. Blocks related to the exchange period signal transmission are the number translation unit 10, the general call processing unit 12 and the ISUP call processing unit 14, wherein the ISUP call processing unit 14 is the number translation unit 10 and the general call processing unit ( Perform ISUP relay function after receiving notification of number translation function and routing control function of 12). Assuming that the subscriber connected to the general call processing unit 12 of the exchange A 2 is the calling party 6 and the subscriber connected to the general call processing unit 12 of the exchange B 4 is the called party 8, the ISUP relay Communication protocols such as IAM, ACM, ANM, conversation, REL, There is a message such as RLC. On the other hand, the VMS unit 16 of the exchange A, B (2, 4) performs the VMS service. In FIG. 1, there is no direct interworking between the VMS unit 16 and the blocks in charge of the ISUP relay function.

However, the prior art as described above has no interface between the VMS subscriber and the ISUP section, so there is no way to send the VMS subscriber's mail to the counterpart's VMS.

Accordingly, an object of the present invention is to provide a method of transmitting a VMS subscriber's mail to a VMS in another exchange.

According to the above object, the present invention provides a method for transmitting a subscriber's mail of a voice mail system, the method comprising: determining a state of a switching center and a relay line when a request for transmitting a mail from a voice mail system connected to the exchange to a counter exchange is provided; Transmitting a mail transmission start notification signal to a power exchange through a signal link when the state of the power exchange and the relay line satisfies a preset condition; and relaying the user part of the integrated information communication network when a mail transmission permission signal from the power exchange is received. Forming a line on the line between the exchange and the exchange period, characterized in that consisting of the process of transmitting the subscriber mail provided by the voice mail system to the exchange through the communication path.

1 is a block diagram illustrating the transmission of the exchange period signal according to the prior art;

2 is a block diagram illustrating a transmission period of a VMS subscriber mail in accordance with an embodiment of the present invention;

3 is a functional block diagram for an ISUP_VMT function according to an embodiment of the present invention;

4 is an ISUP_VMT call processing flow diagram.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same elements in the figures are represented by the same numerals wherever possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

Figure 2 is a block diagram illustrating the transmission of the VMS subscriber mail exchange period according to an embodiment of the present invention. Referring to FIG. 2, VMS subsystem A 28 is connected to switch A 20, and VMS subsystem B 38 is connected to switch B 30. In the exchanger A 20, the VMS subscriber call processor 22, the ISUP call processor 24, and the WAPS wide area call processor 26 are provided. The exchanger B 30 includes the VMS subscriber call processor 32 and the ISUP. A call processor 34 and a WAPS wide area call processor 36 are provided. The VMS subsystem 28 is connected to the VMS subscriber call processing section 22 of the exchange A 20, and the VMS subsystem 38 is connected to the VMS subscriber call processing section 32 of the exchange B 30.

In the present invention, in order to transmit the VMS subscriber's mail to the VMS subsystem in another exchange, the relay line (currency path) in the ISUP route is rented. In this sense, the present invention refers to the function of transmitting the VMS subscriber's mail to the VMS subsystem in another exchange using the ISUP root, "ISUP_VMT (VMS mail transmit) function". The ISUP_VMT function does not support services such as the general relay call function or the data relay call function of the existing ISUP, and lends a relay line (currency path) at the ISUP route.

According to an embodiment of the present invention, the functional block configuration for the ISUP_VMT function may include a VMSC (VMS Control) block 40, an UPDN (ISDN-User Part Control) block 42, and a UPI (ISDN-) as shown in FIG. User Part Interface) block 44. The VMSC block 40 of FIG. 3 is included in the VMS subscriber call processing units 22 and 32 of FIG. 2, and the UPC block 42 and the UPI block 44 of FIG. 3 are connected to the ISUP call processing unit 24 of FIG. 2. Included.

In FIG. 3, the VMSC (VMS Control) block 40 performs the following functions. When the VMSC block 40 receives a VMS Mail Transfer (hereinafter referred to as "VMT") request from the VMS subsystems 28 and 38 to the counter exchange, the VMSC block 40 transmits a call to the counterpart, that is, a relay line in the ISUP route. It requires the ISUP_VMT start with the UPC block 42 to connect. In addition, when the ISUP_VMT service request comes from the UPC block 42 of the switching center, it transmits it to the VMS subsystems 28 and 38.

ISDN-User Part Control (UPC) block 42 performs the following functions. The UPC block 42 searches for various conditions in order to open a communication path with the power exchange when the ISUP_VMT request comes from the VMSC block 40. If all the conditions are met, the data required for the use of the channel in the CCS NO.7 ISUP route is sent to the UPI block 44. The data required when using the channel in the CCS NO.7 ISUP route are basic relay data and NO.7 related data. The basic relay data includes a route, a station number, a route sequence, a trunk line, and the like. The NO.7-related data includes a national indicator and a signaling point code. Code, Signaling Route, Signaling Link Set, Signaling Link, Signaling Link, and Identification Code. In addition, the UPC block 42 analyzes when a message for ISUP_VMT comes from the UPI block 44, searches whether or not it is possible to make a connection, and then notifies the VMSC block 40 when all conditions are satisfied. do.

The UPI (ISDN-User Part Interface) block 44 performs the following functions. When the message for ISUP_VMT is received from the UPC block 42, the packet is packed and transmitted to the power exchange. When the message is received from CCS NO.7 MTP (Message Transfer Part) Layer 3, the packet is unpacked to the UPC block. Notify (42).

4 is a flowchart illustrating a call processing of an ISUP_VMT function according to an embodiment of the present invention.

Hereinafter, an operation according to an exemplary embodiment of the present invention will be described in detail with reference to FIGS. 2 to 4. In the embodiment of the present invention, the operation will be described assuming that exchange A 20 transmits the VMS subscriber mail of VMS sub system 28 to exchange B 30 of a large country.

When the VMSC 40 in the VMS subscriber call processing unit 22 of the exchange A 20 receives the VMT request from the VMS subsystem 28 to the power exchange B 30, the VMSC 40 transfers the call to the power station, that is, the relay line in the ISUP route. It requires the ISUP_VMT start with the UPC block 42 to connect. In other words, ASS (Access Subscriber Sub-System) -T, which is a link for ISUP relay call (call path), is directly connected to the power exchange B (30) without number translation or routing function. The UPC block 42 requests the start of ISUP_VMT. Accordingly, the UPC block 42 checks whether the access state to the designated power exchange B 30 and the call path to the power exchange B 30 are currently in charge of another relay call or is not blocking. After all conditions are met, a child process named UPC_vmto is created for the VMT. In addition, the UPI block 44 notifies the ISUP_VMT start to be sent to the power exchange B 30, and the child process transitions the state at each step. The UPI block 44 packs the message data received from the UPC block 42, and transmits the packed signal ISUP_VMT_SRQ through the signal link of the signal link set of the ISUP signal route to the power exchange B 30. Send to.

The UPI block 44 of the power exchange B 30 unpacks the corresponding message data and notifies the UPC block 42. The UPC block 42 generates an incoming process for the VMT, that is, a child process called UPC_vmti, if all messages are satisfied after the various conditions are searched and the message indicates the start of the ISUP_VMT. Contact. When the VMS subscriber confirmation is made from the WAPS wide area call processing unit 36 to the UPC 42, the UPC 42 makes the VMS subscriber connection request to the VMSC 40 as the VMSC 40, and the VMS subscriber from the VMSC 40. Receive a connection response. When the UPC 42 receives the VMS subscriber connection response from the VMSC 40, the UPC 42 sets the S (Space) switch to the SNC and is notified of the S switch connection from the SNC. The UPC 42 of the power exchange B 30 notified of the S switch connection transmits a signal ISUP_VMT_SRP indicating the success of ISUP_VMT to the switch A 20 that has made a VMT request. The UPC 42 of the power exchange B 30 is then in a call state.

The ISUP_VMT_SRP signal is applied to the UPC 42 via the UPI 44 of the exchange A 20, and the UPC 42 notifies the VMSC 40 that the large station has responded. In response, when the VMSC 40 notifies the UPC 42 of the S switch connection, the UPC 42 of the exchange A 20 is in a call state. Accordingly, the exchange route of the ISUP route is formed between the exchange A 20 and the exchange B 30 of the large country. When the communication path is formed in this way, the exchange A 20 transmits the subscriber's mail of the VMS sub system 28 to the countermeasure exchange B 30 through the communication path. Accordingly, the power exchange B 30 transmits the subscriber mail to the VMS sub system B 38.

After the subscriber mail transfer is completed, the VMSC 40 of the exchange A 20 makes a request for the VMT END to terminate the subscriber mail transmission to the UPC 42, and the UPC 42 sends a signal ISUP_VMT_VCA to notify the end of the ISUP_VMT. Transmit to B (30). Then it is in the waiting state for termination. The exchange B 30 sends a VMT END request to the VMSC 40 when the signal ISUP_VMT_VCA is received, and sends the signal ISUP_VMT_END to the switch A 20 when the VMSC 40 responds with the VMT END notice. send. The child process called UPC_vmti terminates for the VMT. When the exchange A 20 receives the signal ISUP_VMT_END from the exchange B 30 of the power, the switch A20 sets the VMT END notification to the VMSC 40 and terminates the child process called UPC_vmto for the VMT.

In the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be determined by the equivalent of claims and claims.

As described above, the present invention can transmit the VMS subscriber mail to the VMS connected to other exchanges by connecting the relay line of the ISUP root to a currency necessary for transferring the VMS subscriber mail connected to the exchange to another exchange.

Claims (2)

In the voice mail system subscriber mail transmission method, Judging the state of the exchange and the relay line if there is a request to send a mail from the voicemail system connected to the exchange to the exchange. Transmitting a mail transmission start notification signal to a power exchange through a signal link when the state of the power exchange and the relay line satisfies a preset condition; When a mail transmission permission signal from the power exchange is received, a communication path on a general information communication network user part relay line is formed in the exchange period with the exchange, and subscriber mail provided by the voice mail system through the communication path is provided. The method comprising the step of transmitting to the exchange. The method as claimed in claim 1, further comprising the step of, upon completion of the subscriber mail transmission, requesting a mail transmission termination request from the exchange to a counterpart exchange and ending the subscriber mail transmission service if there is a response from the counterpart exchange.