JP2004032356A - Telephone switching system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a telephone switching system capable of making fixed and portable telephones connected smoothly and bi-directionally. <P>SOLUTION: A portable telephones 51, 52 are made electrically connectable with a multifunction telephone 30 that is an extension telephone and is connected via the fixed telephone 20 connected directly with a fixed telephone network 40 or a private branch exchange 80. It is detected by portable telephone connection detecting sections 22, 32 whether each of the portable telephones 51, 52 are in connection or in disconnection. According to the detected result, forwarding or non-forwarding is appropriately and bi-directionally performed by an arrived call forwarding service sections 41, 61 of the fixed telephone network 40 or a portable telephone network 60. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a telephone exchange system, and more particularly, to a telephone exchange system that automatically performs mutual call transfer with a mobile phone.
[0002]
[Prior art]
As for current telephones (or telephone terminals), general fixed telephones and mobile (or mobile) telephones are widely used. The fixed telephone and the mobile telephone have advantages and disadvantages, respectively, so that the user uses the telephone properly according to the situation. That is, fixed telephones are generally inexpensive in use (especially in the case of a local telephone, etc.) and wired, so that there is no need to consider a service area and sound quality is excellent. On the other hand, in the case of a mobile phone, the place of use is not limited, and within the service area (within the service area), it is possible to talk at a fixed rate regardless of whether it is in the city or outside the city, and it is possible to talk while moving. . Therefore, for example, a mobile phone is used when going out, and a fixed telephone is used when returning to home or office. Further, in order to utilize the advantages of the mobile phone, a technology has been developed in which incoming calls are mutually transferred between a fixed phone and a mobile phone for use.
[0003]
A conventional technology for transferring an incoming call to a mobile phone to a fixed phone is disclosed in Japanese Patent Application Laid-Open No. 2001-197224, entitled "System and method for connecting a mobile phone to a fixed phone, and charging system when connecting a mobile phone to a fixed phone". (First prior art) and Japanese Patent Application Laid-Open No. 9-51579, entitled "Wireless Communication System" (second prior art). Also, related arts include “Automatic transfer system and method when moving out of service area in PHS” in JP-A-2000-358280, “Private branch exchange” in JP-A-3-191694, and “JP-A-5-344224”. Japanese Patent Laid-Open No. 9-18584, "Private Telephone System", Japanese Unexamined Patent Publication No. 9-23271, "Private Telephone System", Japanese Unexamined Patent Publication No. 9-23272. “Private telephone system”, “Private call transfer system in private branch exchange” in JP-A-9-163433, “Private telephone system” in JP-A-10-23168, and “Private telephone system” in JP-A-10-23484. And "Private telephone system" in Japanese Patent Application Laid-Open No. 10-75301.
[0004]
First, the technology disclosed in the first related art will be described. According to this publication, whether or not to transfer to a fixed telephone at the time of an incoming call to a mobile phone is first determined based on whether or not the mobile phone has responded to a simultaneous call to the mobile phone, that is, whether or not the mobile phone is out of service area. Next, in the case of out of service area, the determination is made based on whether or not the transfer destination telephone number is registered. Next, the technology disclosed in the above-mentioned second conventional technology will be described. According to this publication, when a mobile phone is placed on a charging stand, the mobile phone network is used to instruct the mobile phone network to start transferring calls, and when the mobile phone is removed from the charging base, to stop transferring. I have.
[0005]
However, these conventional methods have the following problems. First, according to the above-described first related art, transfer is performed in a case where the mobile phone is out of the service area regardless of whether or not the mobile phone is connected to the fixed phone. Therefore, even when the mobile phone is not connected to the fixed phone, there is a disadvantage that the incoming call to the mobile phone is transferred to the fixed phone. Then, the telephone number of the fixed telephone of the transfer destination is deleted after a certain period of time has passed to avoid unnecessary transfer, but it is insufficient to recognize the location of the user. On the other hand, in the second related art, when the mobile phone is out of the service area, the transfer setting cannot be performed. In addition, it is assumed that the charging stand is near the fixed telephone, and it is not linked to the fixed telephone, so even if you take the charging stand out of the way, you can set the transfer start to the fixed telephone by mistake when charging. There is a disadvantage that it is done.
[0006]
Further, both of the above-mentioned prior arts have a drawback that only transfer from a mobile phone to a fixed phone is performed, and no response is made to incoming calls to a fixed phone while away from home.
[0007]
[Object of the invention]
SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems of the related art, and has as its object to provide a telephone exchange system having a bidirectional mutual call automatic transfer function that ensures cooperation between a mobile phone and a fixed telephone. .
[0008]
[Means for Solving the Problems]
In order to solve the above problems, the telephone exchange system according to the present invention employs the following characteristic configuration.
[0009]
(1) In a telephone exchange system having a fixed telephone connected to a fixed telephone network having a call transfer service unit and talking with another fixed telephone or a mobile telephone,
The fixed telephone includes a mobile phone connection detection unit that detects whether or not a mobile phone is connected to the fixed phone. When the mobile phone is connected, an incoming call to the mobile phone is transferred to the fixed phone. A telephone exchange system for transferring an incoming call to the fixed telephone to the mobile telephone when connected.
[0010]
(2) The telephone exchange system according to (1), wherein a memory having a transfer setting storage unit for storing the transfer destination numbers and the like for the fixed telephone and the mobile phone is provided, and a predetermined number and the like are set in advance.
[0011]
(3) The telephone exchange system according to (2), wherein the fixed telephone is a fixed telephone directly connected to the fixed telephone network, and the mobile telephone connection detection unit and the memory are provided in the fixed telephone.
[0012]
(4) The fixed telephone is a multifunctional telephone connected to the fixed telephone network via a private branch exchange, and the mobile telephone connection detection unit and the memory are provided in the multifunctional telephone and the private branch exchange, respectively. The telephone exchange system of the above (2).
[0013]
(5) In a telephone switching system of a communication network, a fixed telephone network connected to a fixed telephone and a mobile telephone network connected to a radio base station providing a service to a mobile telephone each have a call transfer service unit for performing a call transfer service. ,
The fixed telephone detects a connection or non-connection state of the mobile phone, and notifies the control CPU of the connection by a mobile phone connection detection unit and the CPU that is controlled and transferred by the CPU that receives the notification of the connection or non-connection of the mobile phone. A memory including a transfer setting storage unit for reading out a destination; and a telephone exchange system for determining a transfer of an incoming call to the fixed telephone and the mobile telephone according to a detection result of the mobile telephone connection detection unit.
[0014]
(6) The telephone exchange system according to (5), wherein the memory is provided in the private branch exchange when the fixed telephone is an extension telephone connected to a private branch exchange.
[0015]
(7) when the mobile phone connection detecting unit detects connection of the mobile phone, performs a special number dial operation for stopping the call transfer service of the fixed telephone network and a special number dial operation for starting the call transfer service of the mobile phone network; An incoming call to the fixed telephone is directly received by the fixed telephone, and an incoming call to the mobile telephone is transferred to the fixed telephone using a call transfer service of the mobile telephone network. Performing a special number dialing operation for starting the call transfer service of the fixed telephone network and a special number dialing operation for stopping the call transfer service of the mobile phone network, and using the call transfer service of the fixed telephone network to receive a call to the fixed telephone. (5) or the above (5), wherein the incoming call is forwarded to the mobile phone, and the incoming call to the mobile phone is directly received by the mobile phone. Telephone exchange system of 6).
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the configuration and operation of a preferred embodiment of the telephone exchange system according to the present invention will be described in detail with reference to the accompanying drawings.
[0017]
First, FIG. 1 is a block diagram showing a configuration of a first embodiment of a telephone exchange system according to the present invention. The telephone exchange system 10 shown in FIG. 1 includes a fixed telephone 20, a fixed telephone network 40, and a mobile telephone 51. The fixed telephone 20 includes a CPU (central processing unit) 21, a mobile telephone connection detecting unit 22, a line interface unit 23, and a memory 24. Further, the memory 24 has a transfer setting storage unit 24a.
[0018]
The main functions of the components 21 to 24 of the fixed telephone 20 will be described. The CPU 21 controls the entire fixed telephone 20. The mobile phone connection detection unit 22 detects connection and disconnection (disconnection) of the mobile phone 51, and notifies the CPU 21. The transfer setting storage unit 24a included in the memory 24 stores dial information to be sent when starting and stopping the call transfer service of the fixed telephone network 40 and the mobile telephone network. The line interface unit 23 performs line capture, dial transmission, and line disconnection according to instructions from the CPU 21 at the time of calling, detects an incoming call at the time of an incoming call, notifies the CPU 21, and responds and disconnects the line according to the instructions of the CPU 21.
[0019]
The CPU 21 transmits the incoming call transfer service of the fixed telephone network 40 and the mobile phone network from the transfer setting storage unit 24a in accordance with the connection and disconnection (disconnection or disconnection) of the mobile phone 51 from the mobile phone connection detection unit 22. The dial information to be transmitted at the start and stop is read, and a dial transmission instruction is issued to the line interface unit 23. Thus, the call transfer service of the fixed telephone network 40 and the mobile telephone network is started and stopped.
[0020]
As described above, in the telephone exchange system 10 of the present invention, the call transfer service of the fixed telephone network 40 and the mobile telephone network is started and stopped according to the connection or disconnection of the mobile telephone 51. Therefore, when the user of the mobile phone 51 is located at the place where the fixed telephone 20 is installed, for example, even if the place is outside the service area (out of the service area) of the mobile phone 51, the incoming call to the mobile phone 51 is not transmitted to the mobile phone network. The call is automatically transferred to the fixed telephone 20 by the call transfer service.
[0021]
When the user of the mobile phone 51 leaves the place where the fixed telephone 20 is installed (with the mobile phone 51), the incoming call to the mobile phone 51 is received by the mobile phone 51 as it is, The incoming call to the telephone 20 is also automatically transferred to the mobile telephone 51 by the call transfer service of the fixed telephone network 40. Therefore, incoming calls of both the fixed telephone 20 and the mobile telephone 51 can be reliably received.
[0022]
Next, FIG. 2 shows a specific configuration example of the transfer setting storage unit 24a of the memory 24 constituting the fixed telephone 20 in FIG. The transfer setting storage unit 24a includes a fixed telephone transfer start telephone number storage unit 241, a fixed telephone transfer start special number storage unit 242, a fixed telephone transfer stop telephone number storage unit 243, a fixed telephone transfer stop special number storage unit 244, It includes a mobile phone transfer start telephone number storage unit 245, a mobile phone transfer start special number storage unit 246, a mobile phone transfer stop telephone number storage unit 247, and a mobile phone transfer stop special number storage unit 248.
[0023]
The fixed telephone transfer start telephone number storage unit 241 is a telephone number (for example, “1420”) for instructing the fixed telephone network 40 to start a service for transferring an incoming call to the fixed telephone 20 to another telephone. The fixed telephone transfer start special number storage unit 242 stores a number to be additionally dialed (for example, "none") when the fixed telephone network 40 responds after the telephone number dialing described above. The fixed telephone transfer stop telephone number storage unit 243 is a telephone number (for example, “14211”) for instructing the fixed telephone network 40 to stop the service of transferring an incoming call to the fixed telephone 20 to another number. The fixed telephone transfer stop special number storage unit 244 stores a number to be additionally dialed (for example, “none”) when the fixed telephone network 40 responds after the above-mentioned telephone number dialing.
[0024]
On the other hand, the mobile phone transfer start telephone number storage unit 245 stores a telephone number (for example, “090310”) for instructing the mobile phone network to start a service for transferring an incoming call to the mobile phone 51 to another phone. . The mobile phone transfer start special number storage unit 246 stores a number to be additionally dialed (for example, “1421P09011112222P4321”) when the mobile phone network responds after dialing the telephone number described above. The mobile phone transfer stop telephone number storage unit 247 stores a phone number (for example, “090310”) for instructing the mobile phone network to stop the service of transferring an incoming call to the mobile phone 51 to another phone. The mobile phone transfer stop special number storage unit 248 stores a number to be additionally dialed (for example, “1420P090111222P4321”) when the mobile phone network responds after dialing the telephone number described above. Note that these storage units 241 to 248 store values corresponding to the numbering plan of the fixed telephone carrier and the mobile phone carrier with which the user has contracted.
[0025]
Next, FIG. 3 is a configuration diagram of a communication network 11 that employs the telephone exchange system 10 described above with reference to FIGS. In this communication network 11, the same reference numerals are used for components corresponding to the components shown in FIG. 1 for convenience of explanation.
[0026]
The communication network 11 of FIG. 3 includes a fixed telephone network 40, a fixed telephone set 20, a mobile telephone network 60, and a private branch exchange (PBX) 80 connected to the fixed telephone network 40. The private branch exchange 80 is connected to a multifunctional telephone (a type of fixed telephone, but referred to as a multifunctional telephone for distinguishing from the fixed telephone 20), which is an extension telephone. Further, mobile phones 51 and 52 can be connected to the fixed telephone 20 and the multi-function telephone 30, respectively. On the other hand, wireless base stations 71 and 72 for mobile phones having service areas 70a and 70b are connected to the mobile phone network 60, respectively. These wireless base stations 71 and 72 provide communication services to the mobile phones 53 and 54 in the respective service areas 70a and 70b. The fixed telephone network 40 and the mobile telephone network 60 include call transfer service units 41 and 61, respectively, and are connected to call transfer databases 42 and 62, respectively.
[0027]
The fixed telephone 20 and the private branch exchange 80 are connected to the fixed telephone network 40 by analog or digital lines. The call transfer service unit 41 included in the fixed telephone network 40 provides a service for transferring an incoming call to a fixed telephone subscriber to another telephone. The call transfer database 42 stores call transfer settings (start, stop, and transfer destination telephone number) for each fixed telephone subscriber. The settings are read and written by the call transfer service unit 41.
[0028]
On the other hand, the mobile phone network 60 is connected to the fixed telephone network 40 and accommodates a plurality of wireless base stations 71 and 72 for mobile phones. These wireless base stations 71, 72 communicate with a plurality of mobile phones 53, 54, etc. existing in respective service areas (ranges where radio waves can reach). The mobile phone network 60 also includes a call transfer service unit 61, which provides a service for transferring a call received by a mobile phone subscriber to another telephone. The call transfer database 62 stores call transfer settings (start, stop, and transfer destination telephone number) for each mobile phone subscriber. The settings are read and written by the call transfer service unit 61.
[0029]
The configuration of the telephone switching system 10 and the communication network 11 using the same according to the present invention have been described above. However, the mobile phones 51 to 54, the fixed telephone network 40, the mobile telephone network 60, the call transfer service units 41 and 61, the call transfer databases 42 and 62, the radio base stations 71 and 72, and the line interface unit 23 are well known to those skilled in the art. Since it is known and is not directly related to the present invention, its detailed configuration is omitted. In the above-described embodiment, the mobile phones 51 and 52 are connected directly to the fixed telephone 20 and the multi-function telephone 30 by cables, but may be connected via a charging stand.
[0030]
Next, the operation of the CPU 21 when the fixed telephone 20 and the mobile telephone 51 in FIG. 1 are connected and disconnected will be described with reference to the flowcharts in FIGS. 4 and 5, respectively.
[0031]
Prior to the description of the operation, as shown in FIG. 2, “1420” is stored in the fixed telephone transfer start telephone number storage unit 241 of the transfer setting storage unit 24a, and “14211” is stored in the fixed telephone transfer stop telephone number storage unit 243 of the transfer setting storage unit 24a. However, “090310” is stored in the mobile phone transfer start telephone number storage unit 245, “1421P09011112222P4321” is stored in the mobile telephone transfer start special number storage unit 246, and “090310” is stored in the mobile telephone transfer stop telephone number storage unit 247. However, “1420P09011112222P4321” is stored in the mobile phone transfer stop special number storage unit 248 in advance. It is also assumed that nothing is stored in the fixed telephone transfer start special number storage unit 242 and the fixed telephone transfer stop special number storage unit 244. These storage contents need to store values corresponding to the numbering plan of the fixed telephone carrier and the mobile phone carrier with which the user has contracted.
[0032]
In addition, in the call transfer database 42, the telephone number of the mobile phone 51 is set and stored in advance as the call transfer destination telephone number of the call transfer service provided by the fixed telephone network 40. It is also assumed that the telephone number of the fixed telephone 20 is set and stored in advance in the call transfer database 62 as a call transfer destination telephone number of a call transfer service provided by the mobile phone network 60.
[0033]
When the mobile phone connection detection unit 22 of the fixed telephone 20 detects the connection of the mobile phone 51, it notifies the CPU 21 of the connection. Thus, the CPU 21 starts the processing of FIG. 4, the CPU 21 reads “14211” from the fixed telephone transfer stop telephone number storage unit 243 (step A1). Next, the presence or absence of the read data is checked (step A2). In the case of this specific example, "data exists" (step A2: Y), and "off hook" is instructed to the line interface unit 23 (step A3).
[0034]
Next, it instructs the line interface unit 23 to dial the fixed telephone forwarding stop telephone number "14211" (step A4), and determines whether there is a response from the fixed telephone network 40 (step A5). If there is no response (step A5: N), a response is waited. When the fixed telephone network 40 responds (step A5: Y), the data in the fixed telephone transfer stop special number storage unit 244 is read (step A6). Then, the presence or absence of the read data is checked (step A7). In the case of "data available" (step A7: Y), the read fixed telephone transfer stop special number is dialed (step A8). However, in this example, "no data" is obtained (step A7: N), this processing is not performed, and "on-hook" is instructed to the line interface unit 23 (step A9). By the series of processes in steps A1 to A9, the call transfer service of the fixed telephone network 40 is stopped.
[0035]
Next, “090310” is read from the transfer start telephone number storage unit 245 for the mobile phone (step A10). Next, the presence or absence of the read data is checked (step A11). In this case, "data exists" (step A11: Y), and "off hook" is instructed to the line interface unit 23 (step A12). Next, it instructs the line interface unit 23 to dial the mobile phone transfer start telephone number "090310" (step A13). Then, it is determined whether there is a response from the mobile phone network 60 (step A14). If there is no response (step A14: N), the process waits for a response.
[0036]
On the other hand, when the mobile phone network 60 responds (step A14: Y), “1421P09011112222P4321” is read from the mobile phone transfer start special number storage unit 246 (step A15). The presence or absence of the read data is checked (step A16). When it becomes "data available" (step A16: Y), it instructs the line interface unit 23 to dial the cell phone transfer start special number "1421P09011112222P4321" (step A17). The dial “1421” means the start of call transfer, “P” means “pause” for stopping dial transmission for a certain period of time, “09011112222” means the telephone number of the mobile phone 51, and “4321”. Means a password.
[0037]
When the dial transmission is completed, an "on-hook" is instructed to the line interface unit 23 (step A18). Then, the process ends (step A19). Through a series of processes in steps A10 to A18, a call transfer service of the mobile phone network 60 is started, and all incoming calls to the mobile phone 51 are transferred to the fixed phone 20.
[0038]
On the other hand, when the mobile phone connection detection unit 22 detects the non-connection of the mobile phone 51, it notifies the CPU 21 of the detection. Then, the CPU 21 starts the processing of FIG. In FIG. 5, the CPU 21 reads “1420” from the fixed telephone transfer start telephone number storage unit 241 (step B1). Next, the presence or absence of the read data is checked (step B2). In this case, "data exists" (step B2: Y), and "off hook" is instructed to the line interface unit 23 (step B3).
[0039]
Next, it instructs the line interface unit 23 to dial the fixed telephone transfer start telephone number "1420" (step B4). Then, it is determined whether there is a response from the fixed telephone network 40 (step B5). If there is no response (step B5: N), the process waits for a response. When the fixed telephone network 40 responds (step B5: Y), the data of the fixed telephone transfer start special number storage unit 242 is read (step B6). Then, the presence or absence of the read data is checked (step B7). In the case of "data present" (step B7: Y), the read fixed telephone transfer start special number is dialed (step B8). In this specific example, "no data" is obtained (step B7: N), this process is not performed, and "on hook" is instructed to the line interface unit 23 (step B9). Through the series of processes of steps B1 to B9, the call transfer service of the fixed telephone network 40 is started, and all calls to the fixed telephone 20 are transferred to the mobile telephone 51.
[0040]
Next, “090310” is read from the transfer stop telephone number storage unit 247 for the mobile phone (step B10). The presence or absence of the read data is checked (step B11). In this case, "data exists" (step B11: Y), and "off hook" is instructed to the line interface unit 23 (step B12).
[0041]
Next, it instructs the line interface unit 23 to dial the mobile telephone transfer stop telephone number "090310" (step B13). Then, it is determined whether there is a response from the mobile phone network 60 (step B14). If there is no response (step B14: N), the process waits for a response. On the other hand, when the mobile phone network 60 responds (step B14: Y), “1420P09011112222P4321” is read from the mobile phone transfer stop special number storage unit 248 (step B15). Then, the presence or absence of the read data is checked (step B16). In this case, "data exists" (step B16: Y), and the dialing of the mobile phone transfer stop special number "1420P09011112222P4321" is instructed to the line interface unit 23 (step B17).
[0042]
Here, the dial “1420” means stopping the transfer of incoming calls, “P” means “pause” for stopping dial transmission for a certain period of time, “09011112222” means the telephone number of the mobile phone 51, and “4321”. Means a password. When the dial transmission is completed, "on-hook" is instructed to the line interface unit 23 (step B18), and the process is terminated (step B19). Through the series of processes in steps B10 to B18, the call transfer service of the mobile phone network 60 is stopped.
[0043]
Next, a second embodiment of the telephone exchange system according to the present invention will be described with reference to FIG. The telephone exchange system 12 according to the second embodiment is a case where a private branch exchange 80 and a multifunctional telephone 30 and a mobile telephone 52 connected thereto are used instead of the fixed telephone 20 and the mobile telephone 51 in FIG. Since the basic configuration is the same as the configuration of the first embodiment described above with reference to FIG. 1, the following description will focus on the differences.
[0044]
FIG. 3 shows a multifunctional telephone 30, a mobile telephone 52, a private branch exchange 80, and a fixed telephone network 40 connected thereto. In FIG. 3, the multi-function telephone 30 transmits button press information and the like to the CPU 31 that controls all the functions of the multi-function telephone 30, the mobile phone connection detection unit 32, and the private branch exchange 80, and turns on and off a lamp from the private branch exchange 80. It includes a private branch exchange interface unit 33 for receiving information, display information on a display, and transmitting and receiving voice signals. The private branch exchange 80 has a CPU 81 that controls all the private branch exchanges 80, a line interface 83, a memory 84 including a transfer setting storage 84a, and a multifunctional telephone interface 85.
[0045]
When detecting connection or non-connection of the mobile phone 52, the mobile phone connection detection unit 32 notifies the CPU 81 via the CPU 31, the private branch exchange interface unit 33, and the multifunctional telephone interface unit 85. This is the same as the fixed telephone 20 except that the components of the fixed telephone 20 in the first embodiment are distributed to the private branch exchange 80 and the multi-function telephone 30. Therefore, a detailed description of these functions and operations will be omitted.
[0046]
The configuration and operation of the preferred embodiment of the telephone exchange system according to the present invention have been described above in detail. However, it should be noted that these embodiments are merely examples of the present invention and do not limit the present invention in any way. It will be readily apparent to those skilled in the art that various modifications and changes can be made in accordance with the particular application without departing from the spirit of the invention.
[0047]
【The invention's effect】
As will be understood from the above description, the telephone exchange system of the present invention has the following practically significant effects. First, in a state where the mobile phone 51 is connected to the fixed telephone 20, an incoming call to the mobile phone 51 is transferred to the fixed telephone 21, so that the mobile phone 51 is outside the mobile phone service area (out of service area). Can also be received without missing a call.
[0048]
Second, when the mobile phone 51 is not connected to the fixed telephone 20, the incoming call to the fixed telephone 20 is transferred to the mobile telephone 51, so that the incoming call to the fixed telephone 20 is not missed even when going out. It is possible to receive.
[0049]
Third, the setting of the transfer start and stop of the two of the mobile telephone network 60 and the fixed telephone network 40 is automatically performed when the mobile telephone 51 and the fixed telephone 20 are connected or disconnected. Simple simplification is possible.
[0050]
Fourth, since both the mobile telephone and the fixed telephone use the call transfer service provided by the existing telephone networks 40 and 60, no special equipment is required on the telephone network side and the equipment on the user side is used. (Fixed telephones and private branch exchanges) can be minimized in cost.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a first embodiment of a telephone exchange system according to the present invention.
FIG. 2 is a detailed configuration diagram of a transfer setting storage unit built in a memory of the fixed telephone in FIG. 1;
FIG. 3 is an overall system diagram of a communication network employing a telephone switching system according to the present invention.
FIG. 4 is a flowchart showing an operation when a mobile telephone is connected in the telephone exchange system according to the present invention.
FIG. 5 is a flowchart illustrating an operation when a mobile phone is not connected in the telephone exchange system according to the present invention.
FIG. 6 is a configuration diagram of a second embodiment of the telephone exchange system according to the present invention.
[Explanation of symbols]
10,12 telephone exchange system
11 Communication network
20 fixed telephone
21, 31, 81 CPU (control device)
22, 32 Mobile phone connection detector
23, 83 Line interface
24, 84 Memory (storage device)
24a, 84a Transfer setting storage unit
30 Multifunctional telephone (fixed telephone)
40 landline network
41, 61 Call transfer service
42, 62 Call Forwarding Database
51-54 mobile phone
60 Mobile phone network
71, 72 Wireless base station
80 Private branch exchange

Claims (7)

In a telephone switching system having a fixed telephone that is connected to a fixed telephone network having a call transfer service unit and talks with another fixed telephone or a mobile telephone,
The fixed phone includes a mobile phone connection detection unit that detects whether a mobile phone is connected to the fixed phone, and transfers a call to the mobile phone to the fixed phone when the mobile phone is connected. A telephone exchange system for transferring an incoming call to the fixed telephone to the portable telephone when connected. 2. The telephone exchange system according to claim 1, wherein a memory having a transfer setting storage unit for storing transfer destination numbers and the like for the fixed telephone and the mobile phone is provided, and a predetermined number or the like is set in advance. The telephone exchange system according to claim 2, wherein the fixed telephone is a fixed telephone directly connected to the fixed telephone network, and the mobile telephone connection detection unit and the memory are provided in the fixed telephone. The fixed telephone is a multifunctional telephone connected to the fixed telephone network via a private branch exchange, and the mobile telephone connection detection unit and the memory are provided in the multifunctional telephone and the private branch exchange, respectively. The telephone exchange system according to claim 2, wherein In a telephone switching system of a communication network, a fixed telephone network connected to a fixed telephone and a mobile telephone network connected to a wireless base station providing a service to a mobile telephone have a call transfer service unit for performing a call transfer service.
The fixed telephone detects a connection or non-connection state of the mobile phone, and notifies the control CPU of the connection by a mobile phone connection detection unit and the CPU that is controlled and transferred by the CPU that receives the notification of the connection or non-connection of the mobile phone. A telephone exchange system comprising: a memory including a transfer setting storage unit for reading out a destination; and determining transfer of an incoming call to the fixed telephone and the mobile telephone according to a detection result of the mobile telephone connection detection unit. 6. The telephone exchange system according to claim 5, wherein the memory is provided in the private branch exchange when the fixed telephone is an extension telephone connected to a private branch exchange. When the mobile phone connection detecting unit detects connection of the mobile phone, the mobile phone performs a special number dial operation for stopping a call transfer service of the fixed telephone network and a special number dial operation for starting a call transfer service of the mobile phone network. An incoming call to the fixed telephone is directly received by the fixed telephone, and an incoming call to the mobile telephone is transferred to the fixed telephone by using a call transfer service of the mobile telephone network. A special number dial operation for starting a call transfer service of the telephone network and a special number dial operation for stopping the call transfer service of the mobile phone network are performed, and an incoming call to the fixed telephone is received using the call transfer service of the fixed telephone network. The incoming call is forwarded to a mobile phone, and the incoming call to the mobile phone is directly received by the mobile phone. Telephone switching system according to 5 or 6.

Images