JP2011135554A - Voice information service method and information service method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a voice information service method which performs information services in voice over a PSTN and IP network when the IP network and the PSTN coexist. <P>SOLUTION: An area designation number and a voice information service telephone number are transmitted from a terminal 11 to an IP network call processing device 21 and the IP network call processing device 21 determines whether the voice information service telephone number is a telephone number provided in an IP network or a telephone number provided in a PSTN and, if provided in the PSTN, converts the telephone number into a relay station telephone number for routing to a PSTN gateway node 42. The PSTN gateway node 42 converts the relay station telephone number from a protocol used for transmission over the IP network to a protocol used for transmission over the PSTN and transmits it to a relay station 22 accommodating a sound source device 12 that provides voice information services. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a voice information service, and more particularly, to a voice information service method for providing voice information across a public switched telephone network (PSTN) and an Internet (IP) network.

Conventionally, a voice information service, which is one of telephone services, is used in various fields such as weather forecasts, hourly reports, and various announcements (see Non-Patent Documents 1 and 2). Such a voice information service is realized for a service that provides voice information provided by the PSTN to the PSTN terminal and voice information provided by the IP network to the IP terminal. .
The following describes voice information services provided by PSTN for PSTN terminals and voice information services in IP networks for IP terminals as conventional techniques.

(Voice information service provided by PSTN for PSTN terminals)
A case where the voice information service is received without designating the area and a case where the voice information service is received with the area designated will be described with reference to FIGS. 6 and 7, respectively.
FIG. 6 is a diagram for explaining the operation of the PSTN when a region is not designated. First, a caller makes a call from the terminal 11 and transmits a voice information service telephone number (for example, 177). Next, as shown in FIG. 6 (a), a subscriber line switch (GC: Group Unit Center) 24 that manages the terminal 11 of the caller does not accommodate the sound source device 13 and is a voice information service. The telephone number (for example, 177) is converted into the telephone number (for example, 999-8888) of the ISDN (Integrated Services Digital Network) terminal 12 connected to the GC 24, and the incoming process to the ISDN terminal 12 is performed.

  By setting the voice warp service (the call transfer service provided to the ISDN terminal) to the ISDN terminal 12 in advance, an incoming call to the ISDN terminal 12 is sent to the weather forecast sound source connection number (eg, 048-123-4567). Are transferred to the sound source device 13. The call transferred by voice warp arrives at the GC 22 containing the sound source device 13 via the intra-zone center (IC: Intra-zone Center) 33 and is connected to the sound source device 13 by the GC 22 to provide an information providing service by voice. Provided.

  As shown in FIG. 6B, if the GC 24 accommodates the sound source device 12, the voice information service telephone number (eg, 177) is replaced with the weather forecast sound source connection number (eg, 048-123-4567). And is connected to the sound source device 12 to provide a voice information providing service.

FIG. 7 is a diagram for explaining the operation of the PSTN when a region is designated. When receiving a voice information service by designating a region, a caller makes a call from the terminal 11 and transmits a region designation number (eg, 049) + voice information service telephone number (eg, 177). Next, the subscriber line switch (GC) 24 that manages the caller terminal 11 passes through the IC 34, ZC (Zone Center) 45, ZC 46, and IC 33 based on the area designation number (eg, 049). G set in advance
Connect to C22.

If the sound source device 13 is not accommodated in the GC 22, the telephone number (eg, 999) of the ISDN terminal 12 connected to the GC 22 is the area designation number (eg, 049) + voice information service telephone number (eg, 177). -8888), and the incoming call processing to the ISDN terminal 12 is performed. By setting the voice warp service in the ISDN terminal 12 in advance,
The incoming call to the N terminal 12 is transferred to the weather forecast sound source connection number (for example, 048-123-4567). The call transferred by the voice warp arrives at the GC 23 containing the sound source device 13 and is connected to the sound source device 13 by the GC 23 to provide a voice information service by voice.

  If the GC 22 accommodates the sound source device 13, the voice information service telephone number (eg, 177) is converted into a weather forecast sound source connection number (eg, 048-123-4567) and connected to the sound source device 13. Voice information service by voice is provided.

(Voice information service provided to IP terminals in the IP network)
FIG. 8 is a diagram for explaining the operation of the IP network. FIG. 9 is a diagram for explaining a signal sequence of the IP network of FIG.
First, when a caller makes a call from the terminal 11 and transmits a voice information service telephone number (for example, 177), an analog telephone / ISDN terminal accommodating device (MG: Media Gateway) 21 detects the call, and the IP network A voice information service telephone number is transmitted to a call processing device (subscriber MGC (Media Gateway Center)) 31. Here, the MG 21 is a device that performs call detection and line codec testing, and the subscriber MGC 31 is a device that performs subscriber call processing.

Next, the subscriber MGC 31 assigns an area designation number (eg, an area number assigned to the MGC 31) as a default to the voice information service number (eg, “177”), and an IP network voice distribution device (MS: Media Server). Routing to 32. When the caller transmits “area designation number + voice information service telephone number” (eg, 049 + 177), the area designation number is not assigned by default. Next, the MS 32 establishes a session between the sound source 12 and the terminal 11 corresponding to the received “area designation number + voice information service telephone number” (for example, 049 + 177), and provides voice information to the caller. Here, the MS 32 is a device for providing an advanced service such as a voice information service by voice.

  A signal sequence in the operation of the IP network shown in FIG. 8 will be described with reference to FIG. First, the MG 21 transmits an “INVITE” message signal to the MS 32 via the subscriber MGC 31 to request establishment of a session (S101, S102). The MG 21 receives the “200” message signal from the MS 32 via the subscriber MGC 31 and recognizes that the request has been established (S103, S104). Then, the MG 21 returns “ACK” to the MS 32 via the subscriber MGC 31 to establish a session (S105, S106). When the session is ended, the MG 21 transmits a “BYE” message to the MS 32 via the subscriber MGC 31 to request the end of the session (S 107, S 108), receives “200”, and the request is established. (S109, S110).

“The first telephone service, half a century since the start of“ Weather Forecast Service 177 ””, NTT East Japan [online], December 24, 2004, [Search November 16, 2009], Internet, <URL: http : //www.ntt-east.co.jp/release/0412/04122b.html> “Telephone three-digit number service”, NTT East [online], [Searched on November 16, 2009], Internet, <URL: http://web116.jp/phone/telphone/#177_title>

  However, in the above-described voice information service, it is not realized that voice information provided in the IP network is provided to the PSTN terminal or voice information provided by the PSTN is provided to the IP terminal. .

  SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a voice information service method that enables voice information service across the PSTN and the IP network when the IP network and the PSTN coexist. .

  In order to solve the above problems, the present invention provides a voice information service method for receiving a voice information service provided by a PSTN at a terminal of an IP network, the voice information service telephone number providing the voice information service, and the voice information service. Transmitting a region designation number of a region providing an information service from the terminal to an IP network call processing device managing the terminal; and the IP network call processing device, wherein the voice information service telephone number is in the IP network. A network management table indicating whether the number is provided or the number provided by the PSTN, and whether the voice information service telephone number received from the terminal is a number provided on the IP network or not by the network management table; Determining whether the number is provided by the PSTN, and the IP network call processing device includes the area designation number and the voice information service telephone number. And a regional number table for associating a relay station telephone number of a relay station connected to the sound source device that provides the voice information service, and when the voice information service telephone number is provided by the PSTN, the regional number table Converting the area designation number and the voice information service telephone number into the relay station telephone number, routing the relay station telephone number to the PSTN gateway node, and the PSTN gateway node includes the relay station telephone number. Converting the protocol used when transmitting in the IP network to the protocol used when transmitting in the PSTN, and transmitting the protocol to the relay station accommodating the sound source device performing the voice information service, Is connected to the relay station, the sound source device performs the voice information service.

  According to the present invention, a voice information service provided by PSTN can be received from a caller terminal in an IP network.

  The present invention is also a voice information service method for receiving a voice information service provided by an IP network at a terminal of a PSTN, wherein the voice information service telephone number for providing the voice information service and a local area for providing the voice information service are provided. Transmitting a region designation number from the terminal to a subscriber line switch that manages the terminal, and the subscriber line switch is configured such that the voice information service telephone number is a telephone number provided in the IP network or the PSTN. A network management table indicating whether the telephone number is provided, and the network management table determines whether the voice information service telephone number is a telephone number provided by the IP network or a telephone number provided by the PSTN. And the subscriber line exchange provides the area designation number, the voice information service telephone number, and a voice information service. An area number table for associating with the media server telephone number of the media server connected to the source device, and when the voice information service telephone number is provided in the IP network, the area designation number is determined by the area number table; And the voice information service telephone number are converted into the media server telephone number, and the media server telephone number is routed to the PSTN gateway node. The PSTN gateway node converts the media server telephone number to the PSTN. A protocol used when transmitting in the IP network is converted into a protocol used when transmitting on the IP network, and is transmitted to a media server connected to the voice information service tone generator that provides the voice information service. When the terminal connects to the media server, The serial sound source device and performs the voice information service.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to receive the voice information service provided in the IP network from the caller's terminal in the PSTN.

  The present invention is also a voice information service method for receiving a voice information service provided by an IP network at a PSTN terminal, wherein the terminal receives a voice information service telephone number and a region designation number of a region providing the voice information service. Transmitting to the subscriber line switch that manages the terminal, and the subscriber line switch determines whether the voice information service telephone number is a telephone number provided by the IP network or a telephone number provided by the PSTN. Determining whether the voice information service telephone number received from the terminal is a telephone number provided by the IP network or a telephone number provided by the PSTN, according to the network management table; When the voice information service telephone number is provided on the IP network, the voice information service telephone number, the area designation number, Routing to the PSTN gateway node, and the PSTN gateway node changes from the protocol used when transmitting the voice information service telephone number and the area designation number using the PSTN to the protocol used when transmitting the IP network. Converting and transferring to the IP network call processing device connected to the voice information service sound source device that provides the voice information service, the IP network call processing device including the voice information service telephone number, the region designation number, The voice information service telephone number and the area designation number are transmitted to the application server when the application server receives the voice information service telephone number, the area designation number, and the sound source device. The media server phone number of the media server Referring to the associated regional number table, converting the voice information service telephone number and the regional designation number into the media server telephone number; and When the terminal connects to the media server, the sound source device performs the audio information service.

  According to the present invention, since the application server includes the area number table, it is not necessary to change the area number table information of each IP network call processing device when the area number table information needs to be changed.

  The present invention is also a voice information service method for receiving a voice information service provided by an IP network at a PSTN terminal, wherein the terminal receives a voice information service telephone number and a region designation number of the area where the voice information service is provided. Transmitting to the subscriber line switch that manages the terminal, and the subscriber line switch determines whether the voice information service telephone number is a telephone number provided by the IP network or a telephone number provided by the PSTN. Determining whether the voice information service telephone number received from the terminal is a telephone number provided by the IP network or a telephone number provided by the PSTN, according to the network management table; When the voice information service telephone number is provided on the IP network, the voice information service telephone number, the area designation number, Routing to the PSTN gateway node, and the PSTN gateway node changes from the protocol used when transmitting the voice information service telephone number and the area designation number using the PSTN to the protocol used when transmitting the IP network. Converting and transferring to the IP network call processing device connected to the voice information service sound source device that provides the voice information service, the IP network call processing device including the voice information service telephone number, the region designation number, The voice information service telephone number and the area designation number are transmitted to the application server when the application server receives the voice information service telephone number, the area designation number, and the sound source device. The media server phone number of the media server Referring to the associated area number table, converting the voice information service telephone number and the area designation number into the media server telephone number, and converting the converted media server telephone number into the IP network Transmitting to a call processing device and the IP network call processing device connecting the terminal to the media server at the media server telephone number, wherein the terminal connects to the media server. In some cases, the sound source device provides the voice information service.

  According to the present invention, since the application server includes the area number table, it is not necessary to change the area number table information of each IP network call processing device when the area number table information needs to be changed. Further, since the IP network call processing device connects the terminal and the media server, the application server itself does not need to perform the connection processing.

  Further, the present invention provides an information service method characterized in that a call center device is used instead of the sound source device in the voice information service method. Further, the present invention uses a call center device instead of the media server connected to the sound source device in the voice information service method, and uses the telephone number of the call center device instead of the media server phone number. The information service method is characterized by this.

  According to the present invention, an information service can be provided by connecting a calling terminal and a call center device.

  ADVANTAGE OF THE INVENTION According to this invention, when the IP network and PSTN coexist, it becomes possible to provide the audio | voice information service method which enables the information service by the voice over PSTN and IP network.

It is a figure which shows the operation | movement in the case of receiving the audio | voice information service which concerns on 1st Embodiment. It is a figure which shows the signal sequence in the case of receiving the voice information service provided by the PSTN network from the IP terminal. It is a figure which shows the operation | movement in the case of receiving the audio | voice information service which concerns on 2nd Embodiment. It is a figure explaining the signal sequence of the operation | movement shown in FIG. 3 when not specifying an area. It is a figure explaining the signal sequence of the operation | movement shown in FIG. 3 at the time of designating an area. It is a figure which shows the operation | movement of the audio | voice information service when not specifying an area in the conventional PSTN. It is a figure which shows the operation | movement of the audio | voice information service when the area is designated in the conventional PSTN. It is a figure which shows the operation | movement of the voice information service in the conventional IP network. It is a figure which shows the signal sequence of the voice information service in the conventional IP network. It is a figure explaining the modification of the audio | voice information service which concerns on 2nd Embodiment. It is a figure explaining the signal sequence of the operation | movement of the modification of the audio | voice information service which concerns on 2nd Embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(First embodiment)
<When receiving a voice information service provided by PSTN from a terminal in the IP network>
FIG. 1 is a diagram illustrating an operation when receiving a voice information service according to the first embodiment. The operation when receiving the voice information service provided by the PSTN from the terminal 11 in the IP network will be described with reference to FIG.
When a caller makes a call from a terminal 11 in the IP network and transmits a voice information service telephone number (for example, 177), the analog telephone / ISDN terminal accommodating device (MG) 21 detects the call and provides an information providing service telephone. The number is transmitted to the IP network call processing device (subscriber MGC) 31 that manages the terminal 11 in the IP network.

  Next, the subscriber MGC 31 gives an area designation number (eg, an area number assigned to the MGC 31) as a default to the received voice information service telephone number (eg, “177”). When the caller transmits “area designation number + voice information service telephone number” (eg, 049 + 177), the area designation number is not assigned by default. Next, the subscriber MGC 31 determines whether the voice information service telephone number is the voice information service telephone number provided by the IP network or the voice information service telephone number provided by the PSTN.

  Specifically, the subscriber MGC 31 uses a network management table (not shown) indicating whether the “region designation number + voice information service telephone number” is a voice information service provided by the PSTN or a voice information service provided by the IP network. Based on this network management table, it is determined whether the voice information service is provided by the IP network or the voice information service provided by the PSTN. In the network management table, for example, “area designation number + voice information service telephone number”, “049 + 177” and a network providing this voice information service, for example, “PSTN” are shown in association with each other. Therefore, if the received voice information service telephone number is “049 + 177”, the subscriber MGC 31 can determine that the voice information service is provided by the PSTN by referring to the network management table.

  Further, the subscriber MGC 31 associates “area designation number + voice information service telephone number (eg, 046 + 177)” with the telephone number of the subscriber line switch GC 22 connected to the sound source device 12 that provides the voice information service. An area number table (not shown) is provided. Therefore, the subscriber MGC 31 specifies the subscriber line switch GC22 connected to the sound source device 12 that provides the voice information service from the “area designation number + voice information service telephone number” by referring to the area number table. Can do.

  When the subscriber MGC 31 refers to the network management table described above and determines that the received voice information service is the voice information service provided by the PSTN, the subscriber MGC 31 refers to the “region designation” by referring to the region number table. "Number + voice information service telephone number" is converted to the telephone number of the subscriber line switch GC22 (relay station) and routed to the PSTNGW (PSTN Gateway) 42 via the relay MGC 41.

The PSTNGW 42 uses the received signal including the relay station telephone number in the IP network from the SIP (Session Initiation Protocol) or MEGACO (Media Gateway Control) protocol. Protocol conversion to 7 common line signal system and routing to IGS (Interconnecting Gateway Switch) 43 of PSTN.
The operation from the IGS 43 is a conventional operation. That is, the voice information service is provided by connecting to the sound source device 12 of the voice information service via the IC 34 and the GC 22.

  Note that if the received voice information service telephone number is a voice information service provided by the IP network, it is a conventional technique described in the background art, and the description thereof is omitted here.

Next, the signal sequence of the operation shown in FIG. 1 will be described with reference to FIG. FIG. 2 is a diagram showing a signal sequence when receiving a voice information service provided by the PSTN from an IP terminal.
When the MG 21 detects a call from the terminal 11 of the caller in FIG. 1, the MG 21 transmits an “INVITE” message signal to the PSTNGW 42 via the subscriber MGC 31 and the relay MGC 41 to request session establishment (S11). , S12, S13). If there is no area designation number in the information providing service number from the MG 21, the subscriber MGC 31 gives the area designation number and transmits an “INVITE” message signal to the PSTNGW 42 via the relay MGC 41.

  Next, in the PSTNGW 42, No. 1 is derived from the SIP or MEGACO protocol used in the IP network. Protocol conversion to 7 common line signaling is performed, and the process proceeds to PSTN. That is, an “INVITE” message signal including a voice information service telephone number is converted into an “IAM (Initial Address Message)” message signal.

  The PSTNGW 42 transmits an “IAM” message signal for a call connection request to the GC 22 via the IGS 43 together with the “region designation number + voice information service number” (S14, S15). The GC 22 is connected to the information providing service sound source device (sound source device) 12 and activated (S16), and the “ACM (Answer Complete Message)” message that notifies the PSTNGW 42 that the “IAM” has been received via the IGS 43. A signal is transmitted (S17, S18). Further, the GC 22 receives a response message signal from the information providing service sound source device 12 (S19), and transmits an “ANM (Answer Message)” message signal indicating that it has responded to the PSTNGW 42 via the IGS 43 (S20, S20). S21).

  The PSTNGW 42 sends the “ANM” message signal No. 7 The common line system is converted to a “200” message signal used in the IP network and transmitted to the MG 21 (S22, S23, S24). Thereby, the MG 21 recognizes that the session request has been established. Then, the session is established when the MG 21 returns an “ACK” message signal to the PSTNGW 42 via the subscriber MGC 31 and the relay MGC 41 (S 25, S 26, S 27).

When terminating the session, the MG 21 transmits a “BYE” message signal to the PSTNGW 42 via the subscriber MGC 31 and the relay MGC 41 to request termination of the session (S 31, S 32, S 33). The PSTNGW 42 converts the “BYE” message signal into a “REL (Release)” message signal, and transmits it to the GC 22 via the IGS 43 (S
34, S35), the information providing service is terminated (S36). Accordingly, the GC 22 transmits an “RLC (Release Complete)” message signal notifying the end to the PSTNGW 42 via the IGS 43 (S37, S38).

  The PSTNGW 42 sends the “RLC” message signal No. 7 The common line system is converted to a “200” message signal used in the IP network and transmitted to the MG 21 (S39, S40). As a result, the MG 21 recognizes that the session has ended.

  As described above, according to the first embodiment, a voice information service provided by PSTN can be received from a caller terminal in an IP network.

(Second Embodiment)
<Operation when receiving voice information service provided in IP network from PSTN terminal>
FIG. 3 is a diagram illustrating an operation when receiving a voice information service according to the second embodiment. The operation when receiving the voice information service provided in the IP network from the terminal 11 of the PSTN will be described with reference to FIG. First, a voice information service telephone number (for example, “177”) is transmitted from the terminal 11 of the PSTN. Next, the subscriber line switch GC22 that manages the terminal 11 that made the call determines whether the voice information service provided by the PSTN or the voice information service provided in the IP network is based on the voice information service telephone number. Do.

  Specifically, the subscriber line exchange GC22 prepares a network management table (not shown) indicating whether the voice information service telephone number is a voice information service provided by the PSTN or a voice information service provided by the IP network. Whether the voice information service is provided by the IP network or the PSTN is determined based on the network management table. In the network management table, for example, a voice information service telephone number “177” is associated with a network that provides this voice information service, for example, an “IP network”. Therefore, if the received voice information service telephone number is “177”, the subscriber line switch GC22 can determine that the voice information service is provided by the IP network by referring to the network management table. .

  In addition, the subscriber line exchange GC22 specifies “area designation number + voice information service” when a caller designates an area and sends “area designation number + voice information service telephone number (eg, 046 + 177)”. An area number table (not shown) is provided for associating the “phone number” with the telephone number of the MS 32 connected to the sound source device providing the voice information service. Therefore, the subscriber line switch GC22 can identify the MS 32 connected to the sound source device 12 that provides the voice information service from the “area designation number + voice information service telephone number” by referring to the area number table. .

The area number table also associates the voice information service telephone number with the telephone number of the MS 32 connected to the sound source device that provides the voice information service even when the caller specifies only the voice information service telephone number. ing. Therefore, the subscriber line switch GC22 refers to the area number table, so that only the voice information service telephone number can be used.
The MS 32 connected to the sound source device 12 providing the service can also be specified.

  When the subscriber line exchange GC22 determines that the received voice information service is a voice information service provided in the IP network by referring to the network management table, the subscriber line switch GC22 refers to the area number table, From “area designation number + voice information service telephone number”, the MS 32 connected to the sound source device providing the voice information service can be specified. Then, “area designation number + voice information service telephone number” can be converted into the media server telephone number of MS 32 and routed to IGS 43 via IC 33.

  In addition, even when the caller sends only the “voice information service telephone number” without specifying the area, by referring to the area number table, only the voice information service telephone number can be referred to. The MS 32 in the IP network to be provided can be identified, converted into the media server telephone number of the MS 32, and routed to the IGS 43 via the IC 33.

  Next, the IGS 43 performs routing to the PSTNGW 42, and the PSTNGW 42 sends a signal including the received voice information service telephone number to No. Protocol conversion is performed from the common line signal system to the SIP or MEGACO protocol used in the IP network, and then routed to the subscriber MGC 31 via the relay MGC 41.

  The operation from the subscriber MGC 31 is a conventional operation. That is, the voice information service is provided by connecting the sound source information service to the sound source device 12 via the MS 32.

  Note that when the PSTN terminal 11 receives the voice information service provided by the PSTN, since it is the conventional technique described in the background art, the description thereof is omitted here.

  Next, the signal sequence of the operation of FIG. 3 depending on whether or not the area where the voice information service is provided is specified will be described. FIG. 4 is a diagram for explaining the signal sequence of the operation shown in FIG. 3 when no area is designated. FIG. 5 is a diagram for explaining a signal sequence of the operation shown in FIG. 3 when an area is designated.

<Signal sequence when no region is specified>
When the GC 22 detects a call from the caller terminal 11 in the PSTN, the GC 22 transmits an “IAM” message signal for a call connection request to the PSTNGW 42 via the IC 33 and the IGS 43 (S51, S52). In the “IAM” message signal, a telephone number for identifying the MS (media server) 32 converted from the voice information service telephone number “177” in the GC 22, for example, “046-123-4567” is described.

  Next, in PSTNGW42, no. Protocol conversion is performed from the 7 common line signal system to the SIP or MEGACO protocol used in the IP network, and the IP network is transferred. At this time, the “IAM” message signal is converted into an “INVITE” message signal including a voice information service telephone number specifying the MS 32. The PSTNGW 42 transmits an “ACM” message signal notifying that the “IAM” message signal has been received to the GC 22 via the IGS 43 (S56, S57).

Next, the PSTNGW 42 transmits an “INVITE” message signal to the relay MGC 41 (S53). The subscriber MGC 31 relays the “INVITE” message signal (S 54) received from the relay MGC 41 to the MS 32 (S 55). The MS 32 is connected to the sound source device 12. Here, the MS 32 transmits a “200” message signal indicating that a session has been established with the terminal 11 to the PSTNGW 42 via the subscriber MGC 31 and the relay MGC 41 (S 58, S 59, S 60). Further, the PSTNGW 42 returns an “ANM” message signal to the GC 22 (S61, S62). In response, the PSTNGW 42 returns an “ACK” message signal to the MS 32 (S63, S64, S65), and a session is established.
In this way, the MS 32 in the IP network can provide the voice information service from the connected sound source device 12 to the caller terminal 11 of the PSTN.

Next, when the GC 22 detects “disconnection” of the voice information service from the caller terminal 11 in the PSTN network (S71), the GC 22 transmits the “REL” message signal to the PSTNGW 42 via the IGS 43 (S72) ( S73). Here, the PSTNGW 42 performs the protocol conversion as described above, converts the “REL” message signal into the “BYE” message signal, and transmits it to the MS 32 (S74, S75, S80).
The MS 32 returns a “200” message signal to the PSTNGW 42 (S81, S76, S77) and stops the voice information service. The PSTNGW 42 returns a “RLC” message signal to the GC 22 (S78, S79).

<Signal sequence when region is specified>
In this case, “area designation number + voice information service telephone number”, for example, “046 + 177” is transmitted to the GC 22 from the caller terminal 11 in the PSTN. Each exchange such as GC22, IC33, and IGS43 in the PSTN sets address data so as to be relayed to the MS 32 existing at the address designated by the area designation number. The “IAM” message signal in the PSTN and the “INVITE” message signal in the IP network include “area designation number + voice information service telephone number” as a telephone number for specifying the MS 32. Since the other signal sequences are the same as those in the case where no region is designated, the description is omitted.

  According to the second embodiment, a voice information service provided in the IP network can be received from a caller terminal in the PSTN.

(Billing system)
In the voice information service in the PSTN and the IP network, it is possible to charge the sender (information receiver) who receives the voice information service according to the type of the voice information service to be provided. The billing is performed by, for example, a voice information service provided from a voice information service telephone number in an MS (media server) 32 or a PSTN GC (group: subscriber line switch) 22 in the IP network connected to the voice device 12. It is possible to identify and provide a table for associating the type of voice information service with the charge, and calculating the charge for each provided voice information service.

  In the second embodiment, an application server (AS) 50 as shown in FIG. 10 may be provided in the IP network. The AS 50 includes an area number table. Using the area number table, the voice information service telephone number (for example, “177”) included in the call is converted into the telephone number of the MS 32 (for example, “046-123-4567”). ). When the subscriber MGC 310 of this system receives a call including the voice information service telephone number from the terminal 11 of the PSTN caller via the PSTNGW 42, the subscriber MGC 310 transfers the call to the AS 50. The AS 50 converts the voice service telephone number of this call into the telephone number of the MS 32 by referring to the area number table provided in itself. Thereafter, the AS 50 routes the call to the MS 32 based on the telephone number of the call, and connects the caller terminal 11 and the MS 32. Thereby, the terminal 11 of the caller can connect to the MS 32 and receive a voice information service.

  This area number table may further include an area designation number in addition to the voice service telephone number (service telephone number). In other words, when the received call from the terminal 11 is the voice service telephone number + the area designation number, the AS 50 selects the telephone number of the destination MS 32 according to the combination of these numbers, and this selection is made. You may make it convert into a telephone number. Further, as illustrated in Table 1, this area number table may include a service time of the MS 32 and an out-of-hours connection destination that is a destination when a call is accepted other than the service time. That is, when the AS 50 receives a call including a voice service telephone number, the AS 50 first checks the service time of the call destination set in the area number table. Here, if the reception time of the call is within the service time of the call, the AS 50 sets the destination set in the area number table as the destination of the call. Then, the telephone number of the call is converted into the telephone number of the destination. On the other hand, if the call reception time is outside the service time of the call, the destination telephone number is set as the destination telephone number indicated in the outside connection destination. Such an area number table is stored in the storage unit (not shown) of the AS 50, and can be rewritten via the input / output interface (not shown) of the AS 50. That is, since the AS 50 includes the area number table, when the area number table information needs to be changed, it is not necessary to change the area number table information of each subscriber MGC 310. Therefore, the trouble of updating the information of the area number table can be reduced.

  Next, the processing procedure of the system including such subscribers MGC 310 and AS 50 will be described with reference to FIG. Here, a case will be described as an example in which the terminal 11 sends a call of CD (area designation number) + voice information service telephone number (for example, “177”) to connect to the MS 32. When the PSTN GC 22 detects that the terminal 11 is off-hook (OFFHOOK) (S101), a DT (dial tone) is transmitted to the terminal 11 (S102), and the CD (area designation number) + voice information service telephone number (“177”) ) Dial is received (S103).

  Based on the network management table, the GC 22 confirms that the voice information service to be connected with CD (region designation number) + voice information service telephone number (for example, “177”) is a voice information service provided by the IP network. Upon confirmation, the “IAM” message signal of CD (area designation number) + voice information service telephone number (for example, “177”) is transferred to the PSTNGW 42 via the IGS 43 (S104, S105). The PSTNGW 42 converts this “IAM” message signal into an “INVITE” message signal and transmits it to the subscriber MGC 310 (S106). Further, the PSTNGW 42 transmits an “ACM” message signal indicating that the “IAM” message signal has been received to the GC 22 via the IGS 43 (S107, S108).

  When the subscriber MGC 310 confirms that the voice information service telephone number (for example, “177”) is included in the “INVITE” message signal received in S106, the subscriber MGC 310 determines to connect to the AS 50, and sends this “INVITE” message signal to the AS 50. Transfer (S109).

  The AS 50 refers to the area number table (see Table 1) and uses the CD (area designation number) + voice information service telephone number (for example, “177”) in the received “INVITE” message signal as the CD (area designation number). ) + Voice information service phone number (for example, “177”) is converted to the phone number of the called party (MS32). Then, the “INVITE” message signal converted from the telephone number is transmitted to the MS 32 (S110).

  When the AS 50 receives the “200” message signal from the MS 32 (S111), the AS 50 transmits this signal to the PSTNGW 42 (S112, S113). The PSTNGW 42 converts this “200” message signal into an ANM signal and transmits it to the GC 22 connected to the terminal 11 (S114, S115). Further, the PSTNGW 42 transmits the fact that the “200” message signal has been received to the AS 50 via the subscriber MGC 310 by the “ACK” message signal (S116, S117). When the AS 50 receives the “ACK” message signal, the AS 50 transmits an “INFO” message signal instructing transmission of a sound source (for example, a weather forecast sound source) to the terminal 11 to the MS 32 (S118). Upon receiving this “INFO” message signal, the MS 32 transmits a “200” message signal to the AS 50 (S119), and then connects to the terminal 11, whereby the terminal 11 enters a state of talking with the MS 32 (S120). Thereby, for example, the terminal 11 can listen to the weather forecast sound source from the MS 32.

  Thereafter, when the GC 22 detects the on-hook (ONHOOK) of the terminal 11 of the caller (S121), the GC 22 transmits a REL signal to the PSTNGW 42 via the IGS 43 (S122, S123). The PSTNGW 42 converts this REL signal into a BYE message signal, and transmits it to the MS 32 via the subscriber MGC 310 and AS 50 (S124, S125, S126). Then, the MS 32 transmits a “200” message signal that conveys reception of this BYE message signal to the PSTNGW 42 via the AS 50 and the subscriber MGC 310 (S 127, S 128, S 129). The PSTNGW 42 converts the “200” message signal into an RLC signal and transmits it to the GC 22 connected to the caller terminal 11 via the IGS 43 (S130, S131).

  In this way, the caller terminal 11 can connect to the MS 32 that provides the voice information service via the AS 50.

  The AS 50 described above connects the terminal 11 and the MS 32 by directly transferring the call (“INVITE” message signal) from the terminal 11 received via the subscriber MGC 310 to the MS 32. It is not limited. For example, the subscriber MGC 310 that has received a call (“INVITE” message signal) from the terminal 11 inquires the AS 50 about the destination (the telephone number of the MS 32) that provides the voice information service, and sends it to the destination notified from the AS 50. The terminal 11 and the MS 32 may be connected by routing a call from the terminal 11. That is, the subscriber MGC 310 that has received a call including the telephone number of the voice information service from the terminal 11 transfers this call to the AS 50. Then, the AS 50 refers to the area number table and sets the telephone number (for example, CD (area designation number) + voice information service telephone number (“177”)) included in this call to the MS 32 corresponding to this telephone number. Convert to the destination number. Then, the call after the conversion of the telephone number is transmitted to the subscriber MGC 310. Thereafter, the subscriber MGC 310 routes the call to the converted MS 32 of the telephone number.

  Even in this way, the system can connect the terminal 11 to the MS 32 that provides the voice information service. In the above-described embodiment, the case where the system connects the terminal 11 to the MS 32 that provides the voice information service has been described. However, the connection destination (destination) is not limited to the MS 32. For example, it may be a reception organization such as a call center device. In this case, the destination number registered in the area number table (see Table 1) and the after-hours connection destination describe the telephone number of the call center device. 10 and 11, the case where the calling terminal is the PSTN terminal 11 has been described. However, the calling terminal may be the IP network terminal 11 as a matter of course.

11 Terminal 12, 13 Sound source device 21 Analog telephone / ISDN terminal accommodation device (MG: Media Gateway)
22, 23, 24 Group stations (subscriber line exchanges) (GC: Group Unit Center)
31,310 IP network call processing device (subscriber MGC, MGC: Media Gateway Controller)
32 MS (Media Server)
33, 34 Intra-zone Center
41 Relay MGC (Media Gateway Controller)
42 PSTNGW (PSTN Gate Way)
43 Gateway Exchange (IGS: Interconnecting Gateway Switch)
45, 46 Relay station (Zone Center)
50 AS (Application Server)

Claims (9)

A voice information service method for receiving a voice information service provided by a PSTN at a terminal of an IP network,
Transmitting a voice information service telephone number for providing the voice information service and a regional designation number of a region for providing the voice information service from the terminal to an IP network call processing device that manages the terminal;
The IP network call processing device includes a network management table indicating whether the voice information service telephone number is a number provided by the IP network or a number provided by the PSTN, and the network management table allows the terminal to Determining whether the received voice information service telephone number is a number provided by the IP network or a number provided by the PSTN;
The IP network call processing device includes a regional number table that associates the regional designation number, the voice information service telephone number, and a relay station telephone number of a relay station connected to a sound source device that provides a voice information service, When an information service telephone number is provided by the PSTN, a step of converting the area designation number and the voice information service telephone number into the relay station telephone number by the area number table and routing to the PSTN gateway node When,
The PSTN gateway node converts a protocol used when the relay station telephone number is transmitted over the IP network into a protocol used when the PSTN gateway is transmitted over the PSTN, and a relay station containing a sound source device that performs the voice information service And sending to
The voice information service method, wherein the sound source device performs the voice information service when the terminal is connected to the relay station. A voice information service method for receiving a voice information service provided by a PSTN at a terminal of an IP network,
Transmitting a voice information service telephone number that provides the voice information service from the terminal to an IP network call processing device that manages the terminal;
The IP network call processing device assigning a region designation number of the region providing the voice information service assigned to the IP network call processing device to the voice information service telephone number;
The IP network call processing device includes a network management table indicating whether the voice information service telephone number is a number provided by the IP network or a number provided by the PSTN, and the voice information Determining whether the service telephone number is a number provided by the IP network or a number provided by the PSTN;
The IP network call processing device includes a regional number table that associates the regional designation number, the voice information service telephone number, and a relay station telephone number of a relay station connected to a sound source device that provides a voice information service, When an information service telephone number is provided by the PSTN, a step of converting the area designation number and the voice information service telephone number into the relay station telephone number by the area number table and routing to the PSTN gateway node When,
The PSTN gateway node converts a protocol used when the relay station telephone number is transmitted over the IP network into a protocol used when transmitted over the PSTN, and a relay accommodating a sound source device that performs the voice information service Transmitting to the station, and
The voice information service method, wherein the sound source device performs the voice information service when the terminal is connected to the relay station. A voice information service method for receiving a voice information service provided by an IP network at a PSTN terminal,
Transmitting a voice information service telephone number providing the voice information service and a region designation number of a region providing the voice information service from the terminal to a subscriber line switch managing the terminal;
The subscriber line switch includes a network management table indicating whether the voice information service telephone number is a telephone number provided by the IP network or a telephone number provided by the PSTN, and
Determining whether the voice information service telephone number is a telephone number provided by the IP network or a telephone number provided by the PSTN according to a table;
The subscriber line exchange comprises a regional number table associating the regional designation number, the voice information service telephone number, and a media server telephone number of a media server connected to a sound source device that provides the voice information service, When the voice information service telephone number is provided by the IP network, the area designation number and the voice information service telephone number are converted into the media server telephone number by the area number table, and the PSTN gateway node A routing step;
The PSTN gateway node converts a protocol used when the media server telephone number is transmitted by the PSTN into a protocol used when the media server telephone number is transmitted by the IP network, and converts the protocol to a voice information service sound source device that provides the voice information service. Sending to a connected media server,
The sound information service method, wherein the sound source device performs the sound information service when the terminal is connected to the media server. A voice information service method for receiving a voice information service provided by an IP network at a PSTN terminal,
Transmitting a voice information service telephone number that provides the voice information service from the terminal to a subscriber line switch that manages the terminal;
The subscriber line switch includes a network management table indicating whether the voice information service telephone number is a telephone number provided by the IP network or a telephone number provided by the PSTN, and the terminal is switched by the network management table. Determining whether the voice information service telephone number received from the telephone number provided by the IP network or the telephone number provided by the PSTN;
The subscriber line switch comprises a regional number table associating the voice information service telephone number with a media server telephone number of a media server connected to a sound source device that provides the voice information service, and the voice information service telephone number Is provided on the IP network, the voice information service telephone number is converted into the media server telephone number according to the area number table and routed to the PSTN gateway node;
The PSTN gateway node converts a protocol used when the media server telephone number is transmitted by the PSTN into a protocol used when the media server telephone number is transmitted by the IP network, and converts the protocol to a voice information service sound source device that provides the voice information service. Sending to a connected media server,
The sound information service method, wherein the sound source device performs the sound information service when the terminal is connected to the media server.   The voice information service method according to any one of claims 1 to 4, further comprising a step of charging an information recipient who receives information according to a type of the voice information service. A voice information service method for receiving a voice information service provided by an IP network at a PSTN terminal,
Transmitting a voice information service telephone number and a regional designation number of a region providing the voice information service from the terminal to a subscriber line switch that manages the terminal;
The subscriber line switch includes a network management table indicating whether the voice information service telephone number is a telephone number provided by the IP network or a telephone number provided by the PSTN, and the terminal is switched by the network management table. Determining whether the voice information service telephone number received from the telephone number provided by the IP network or the telephone number provided by the PSTN;
Routing the voice information service telephone number and the area designation number to the PSTN gateway node when the voice information service telephone number is provided in the IP network;
The PSTN gateway node converts the voice information service telephone number and the area designation number from a protocol used when transmitting by the PSTN to a protocol used when transmitting by the IP network, and provides the voice information service. Transferring to the IP network call processing device connected to the voice information service sound source device to perform,
The IP network call processing device, when receiving the voice information service telephone number and the area designation number, transmitting the voice information service telephone number and the area designation number to an application server;
The application server refers to the regional information table in which the speech information service telephone number and the regional designation number are associated with a media server telephone number of a media server connected to the sound source device, and the speech information service Converting the telephone number and the regional designation number into the media server telephone number;
Connecting the terminal to the media server at the media server telephone number;
The sound information service method, wherein the sound source device performs the sound information service when the terminal is connected to the media server. A voice information service method for receiving a voice information service provided by an IP network at a PSTN terminal,
Transmitting a voice information service telephone number and a regional designation number of a region providing the voice information service from the terminal to a subscriber line switch that manages the terminal;
The subscriber line switch includes a network management table indicating whether the voice information service telephone number is a telephone number provided by the IP network or a telephone number provided by the PSTN, and the terminal is switched by the network management table. Determining whether the voice information service telephone number received from the telephone number provided by the IP network or the telephone number provided by the PSTN;
Routing the voice information service telephone number and the area designation number to the PSTN gateway node when the voice information service telephone number is provided in the IP network;
The PSTN gateway node converts the voice information service telephone number and the area designation number from a protocol used when transmitting by the PSTN to a protocol used when transmitting by the IP network, and provides the voice information service. Transferring to the IP network call processing device connected to the voice information service sound source device;
The IP network call processing device, when receiving the voice information service telephone number and the area designation number, transmitting the voice information service telephone number and the area designation number to an application server;
The application server refers to the regional information table in which the speech information service telephone number and the regional designation number are associated with a media server telephone number of a media server connected to the sound source device, and the speech information service Converting the telephone number and the regional designation number into the media server telephone number;
Transmitting the converted media server telephone number to the IP network call processing device;
The IP network call processing device performs the step of connecting the terminal to the media server of the media server telephone number;
The sound information service method, wherein the sound source device performs the sound information service when the terminal is connected to the media server.   3. The information service method according to claim 1, wherein a call center device is used instead of the sound source device in the voice information service method according to claim 1.   A call center device is used instead of a media server connected to the sound source device in the voice information service method according to any one of claims 3 to 7, and a call center device is used instead of the media server telephone number. An information service method using a telephone number of a device.

Images