JP2916414B2 - Communication service processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication service processing apparatus connected to a circuit switching network such as a public telephone network or ISDN via a user network interface to provide various advanced services.

[0002]

2. Description of the Related Art FIG.
FIG. 1 is a block diagram showing a public telephone network 10 including service control devices 30 and 40 of a conventional example. In FIG. 4, a transmitting terminal 1 and a receiving terminal 2 such as telephones are connected to telephone exchanges 11 and 12, respectively.
1 and 12 are connected to each other via a telephone line 70. A service control device 30 is connected to the telephone exchange 11, while a service control device 40 is connected to the telephone exchange 12. Then, the service control device 30 is connected to the signal line 71.
Is connected to the service control device 40 via the. here,
The service controllers 30 and 40 have service memories 31 and 41 respectively storing service programs including information for providing various services to subscribers.
Is connected.

For example, in the prior art document 1, “Report of Fe
ature Interaction Drafting Group ", ITU-T Document,
In the first conventional communication system described in “Q6 / 11-BLN-248, issued in November 1995,” the information on the service executed by the service control device 30 on the transmission side is notified to the telephone exchange 12 on the reception side. However, if it becomes necessary to execute the calling party registration service after the called party registration service, the calling party service control device 40 executes the called party registration service and then sends the calling party service to the calling party service control device 40. It requests the control device 30 to re-execute the caller registration service. Therefore, it is necessary to extend the signal information sent from the calling-side telephone exchange 11 to the called-side telephone exchange 12, and a new signaling method between the calling-side service control device 30 and the called-side service control device 40 is required. was there.

[0004] Further, in prior art document 2 “EJ Cameron et.
al., “A feature interaction benchmark for IN and b
eyond ", p.1-23, FIW'94, 1994", the only signal that can be transmitted from a telephone terminal to a telephone exchange during a busy state is a hooking signal. For example, if a user has subscribed to both the call waiting service and the three-way call service, it is not possible to determine at hooking whether it is a request to switch the other party or a call to another party.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to facilitate a service conflict between a calling side and a called side without extending a signal system function in an existing telephone network or adding a function to a telephone exchange. An object of the present invention is to provide a communication service processing device that can solve the problem.

[0006]

[0007]

A communication service processing apparatus according to the present invention is connected to a circuit switching network,
A communication service processing device provided in common for a calling terminal and a called terminal, comprising: a storage device for storing registration service information for each terminal and an execution order of the registration service when a service conflict occurs; And a circuit switching switch for connecting the terminal to the receiving terminal. When a call from the calling terminal to the receiving terminal is detected and the call from the calling terminal is detected, the calling terminal is connected to the receiving terminal via the circuit switching switch. Service control means for determining the execution order of registered services based on the conflict table stored in the storage device and executing the registered services when the calling terminal and the called terminal are simultaneously performing service registration. It is characterized by the following.

Further, the communication service processing device according to claim 2 is the communication service processing device according to claim 1,
The service control means is characterized in that, when the execution of the called service and the execution of the calling service are substantially simultaneously requested and conflicted, the service control means executes the called service first, and then executes the calling service. .

[0009]

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

<First Embodiment> FIG. 1 is a block diagram showing a public telephone network 10 provided with a service control device 20 according to a first embodiment of the present invention. In the public telephone network 10 of the first embodiment, one service control device 20 is provided in common for the calling terminal 1 and the called terminal 2, and the calling terminal 1 and the called terminal 2 perform service registration at the same time. Sometimes, the service control device 20 determines the execution order of the registered services based on the feature conflict table in the service memory 21 and executes them.

Referring to FIG. 1, a transmitting terminal 1 and a receiving terminal 2 such as telephones are telephone exchanges 11 and 12, respectively.
And telephone exchanges 11, 12, and 13 are connected to telephone line 7
0a and 70b. Telephone exchange 1
3, a service control device 20 is connected. The service control device 20 is connected to a service memory 21 storing a service program and a service table including information for providing various services to the subscriber. You.

FIG. 2 is a block diagram showing the configuration of the service control device 20 of FIG. In FIG. 2, the telephone exchange 13 is connected via a telephone line 61 to a telephone network interface 51 which performs signal conversion and the like, and is connected via a telephone line 62 to a telephone network interface 52 which performs signal conversion and the like. You. Telephone network interface 5
1 and 52 are connected to a telephone exchange switch 53 for connecting lines from the telephone network interfaces 51 and 52, and the telephone exchange switch 53 is connected to a voice conference bridge 54.
Connected to. A telephone network interface 51, 52 in the service control device 20, a telephone exchange switch 53,
The audio conference bridge 54 is connected to an internal bus 55 connected to a host computer 50 that controls the operation of each unit 51 to 54 in the service control device 20, and the service memory 21 is connected to the host computer 50.

First, the transmitting terminal 1 is connected to the service control device 20.
And is connected to the telephone network interface 51 via the telephone exchange 11 and the telephone exchange 13. next,
When the calling terminal 1 requests connection to the called terminal 2, the service control device 20 calls the called terminal 2 from the telephone network interface 52. When the receiving terminal 2 answers, the telephone network interface 52 is connected to the receiving terminal 2 via the telephone exchange 13 and the telephone exchange 12. Thereafter, the service control device 20 connects the telephone network interface 51 and the telephone network interface 52 via the telephone exchange switch 53, so that the calling terminal 1 is finally connected.
And the receiving terminal 2 are connected. Service control device 20
Monitors and controls the call from the transmitting terminal 1 to the receiving terminal 2. Here, when the transmitting terminal 1 and the receiving terminal 2 are identified and the transmitting terminal 1 and the receiving terminal 2 are simultaneously performing service registration, the service control device 20 performs registration based on the feature conflict table in the service memory 21. Determine the service execution order and execute. Service memory 21
Includes a service contention table shown in Table 1 below, and stores a service program and a service table including information for providing various services to the subscriber. Here, the feature is the public telephone network 10
Means a service processing unit provided in.

[0015]

[Table 1]

The feature conflict table in Table 1 is a reference table that the service control unit 20 refers to when two service requests conflict for one call. In Table 1, A to R in the vertical direction and the horizontal direction are registered on the transmitting side, the receiving side, the transmitting side, and the receiving side (hereinafter, referred to as the transmitting and receiving sides), respectively, and are known according to the ITU recommendation. The feature conflict table indicates how the service control device 20 processes when two features in the vertical direction and the horizontal direction conflict with each other. The symbols in Table 1 mean the following. (A)-: Indicates that there is no combination of service competition. (B) ：: Indicates that a service conflict occurs. (C) x: Indicates that no service conflict occurs. (D) Destination: Indicates that the service in the horizontal direction is executed after the service in the vertical direction is executed first. (E) After: indicates that the service in the vertical direction is executed after the service in the horizontal direction is executed first. (F) No .: One of the services is executed according to the terminal number of the connection destination. (G) Not: Indicates that the execution of the service in the vertical direction is impossible. (H) Actual: Indicates that only the service in the vertical direction can be executed. In the case of only ○, one of the services is executed.

In Table 1, the DSVD modem is Di
digital Simultaneous Voice
An abbreviation for and Data Modem, a so-called modem with a voice function. In addition, CCBS is Com
Pletion of Calls to Busy
It is an abbreviation for Subscriber.

Therefore, for example, when unconditional call transfer, which is an incoming call service, and execution of outgoing call, which is an outgoing call service, are requested substantially at the same time and they compete with each other, the service control unit 20 sets the incoming call service. After performing an unconditional call forwarding first, the caller service, outgoing screening, is then performed.

As described above, when the transmitting terminal 1 and the receiving terminal 2 are simultaneously performing service registration, the service control device 20 executes the registration service execution order based on the feature conflict table in the service memory 21. Is determined and executed, and without any extension of the signaling system function in the existing telephone network or addition of any function to the telephone exchange, simple hardware and software can be used for the calling side and the called side. Service conflicts can be easily resolved and executed.

<Second Embodiment> FIG. 3 is a block diagram showing a configuration of a service control device 20a according to a second embodiment of the present invention. The service control device 20a according to the second embodiment is different from the service control device 20 in FIG.
TMF (Dual Tone Multi Frequency)
ncy) a signal detector 56 is provided. The configuration in FIG. 1 is the same. The originating terminal 1 is DT
It has a function of transmitting an MF signal.

The service control device 20 monitors and controls the call between the calling terminal 1 and the receiving terminal 2.
For example, a 4-digit DTM shown in Table 2 below from each terminal 1 or 2
When the F signal is received, the DTMF signal is detected by the DTMF signal detector 56, and the service during call corresponding to the received DTMF signal is executed by referring to the service control table stored in the service memory 21 in advance. I do.

[0022]

[Table 2] ────────────────────DTMF signal Executed service ──────────────────── 0000 Call waiting 0001… 0002… 0003… 0004 E-mail registration 0005 Three-party call service…… ────────────────────

As described above, the service control device 2
0 monitors and controls the call between the calling terminal 1 and the receiving terminal 2. When a 4-digit DTMF signal is received during the call, the DTMF signal is detected by the DTMF signal detector 56, By referring to the service comparison table stored in the service memory 21 in advance and executing the busy service corresponding to the received DTMF signal, not only the call waiting service indicated by the hooking of the conventional public telephone network but also the call waiting service is displayed. , A variety of advanced services,
It can be executed with simple hardware and software without any extension of the signaling system function in the existing telephone network or addition of any function to the telephone exchange.

<Modification> In the above embodiment, the public telephone network 10 has been described. However, the present invention is not limited to this, and can be applied to various circuit switching networks such as ISDN.

[0025]

As described in detail above, according to the present invention, there is provided a communication service processing apparatus connected to a circuit switching network and provided in common for a calling terminal and a called terminal, and a registration for each terminal. A storage device for storing service information and the order of execution of registration services at the time of service conflict, a circuit-switching switch for connecting a calling terminal and a called terminal, and monitoring and controlling the call of each terminal, and receiving a call from the calling terminal. When a call to the terminal is detected, the calling terminal is connected to the called terminal via the circuit switching switch, and when the calling terminal and the called terminal are simultaneously performing service registration, the call is stored in the storage device. Service control means for deciding the execution order of the registration services based on the conflict table obtained and executing the service. Therefore, the service conflict between the calling side and the called side can be easily resolved and executed with simple hardware and software without any extension of the signaling system function in the existing telephone network or addition of any function to the telephone exchange. be able to.

[0026]

[Brief description of the drawings]

FIG. 1 is a block diagram showing a public telephone network 10 including a service control device 20 according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a service control device 20 of FIG.

FIG. 3 is a block diagram illustrating a configuration of a service control device 20a according to a second embodiment of the present invention.

FIG. 4 is a block diagram showing a public telephone network 10 including service control devices 30 and 40 of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Calling terminal, 2 ... Receiving terminal, 10 ... Public telephone network, 11, 12, 13 ... Telephone exchange, 20, 20a ... Service control device, 21 ... Service memory, 50 ... Host computer, 51, 52 ... Telephone network interface 53, a telephone exchange switch, 54, a voice conference bridge, 55, an internal bus, 56, a DTMF signal detector, 61, 62, a telephone line.

Continuation of the front page (56) References JP-A-6-621127 (JP, A) JP-A-4-54797 (JP, A) JP-A-2-196559 (JP, A) JP-A-5-56160 (JP) , A) JP-A-7-95634 (JP, A) JP-A-8-331257 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H04M 3/42-3/58 H04Q 3/54-3/56

Claims (2)

(57) [Claims] 1. A communication service processing device connected to a circuit switching network and provided commonly to a calling terminal and a called terminal, the communication service processing device comprising: a registration service information for each terminal; A storage device for storing the execution order, a circuit-switching switch for connecting the calling terminal and the receiving terminal, and monitoring and controlling the call of each terminal, and making a call when a call from the calling terminal to the receiving terminal is detected. When the terminal is connected to the called terminal via the circuit switching switch, and the calling terminal and the called terminal are simultaneously performing service registration, the execution order of the registration service based on the contention table stored in the storage device. A communication service processing device comprising service control means for determining and executing the communication service. 2. The service control means executes the called service first, and then executes the calling service when the execution of the called service and the execution of the calling service are substantially simultaneously requested and conflict with each other. The communication service processing device according to claim 1, wherein: