JP2009038557A - Communication apparatus and call origination method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology with which a call can be originated, with an optimal telephone number, to a speaking partner to whom a plurality of telephone numbers are assigned. <P>SOLUTION: A master unit 1 retrieves, from a number information storage section 1090, a record 1090 with a destination number designated in call origination accepted from an extension terminal 2. Then, a telephone number with a highest priority is selected from among telephone numbers being registered in the retrieved record 1090 and with this selected telephone number as a new destination number, a call is originated to line networks 5-8 corresponding to a number system of the destination number. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a transmission technique for a communication apparatus that can transmit to a plurality of types of circuit networks.

  Patent Document 1 discloses a technique that can cope with any connection form of a terminal on the called side and that enables connection through an optimum route among connectable routes. Has been. In Patent Document 1, when a telephone is connected from a calling side telephone to a called side telephone, a connection process is executed in an optimal order for a plurality of paths including a public line network and the Internet, and a path that can be connected first Connect the telephone from the calling telephone to the called telephone.

JP 2000-125041 A

  However, the technique described in Patent Document 1 does not assume that a plurality of telephone numbers are assigned to the called telephone. In other words, when a plurality of telephone numbers are assigned to the called telephone, it is not considered which telephone number is advantageous in terms of cost for making a call to the called telephone.

  For example, when two geographically separated bases A and B are connected by a public line network and a private line network, and an extension number and an external line number are assigned to each of the bases A and B, the telephone of the base A Assume that a user makes a call to the telephone at site B. Here, if the user of the phone at the site A knows only the outside line number of the phone at the site B, usually the user makes a call with the outside number of the site B without checking the extension number of the site B. However, since the outside line number is via the public line network, the cost is higher than the extension number.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a technique capable of making a call with an optimum telephone number to a call partner to which a plurality of telephone numbers are assigned. is there.

  In order to solve the above problems, in the present invention, a telephone number assigned to a call partner having an input destination number is searched. Then, a telephone number that is most advantageous in terms of cost is extracted from the searched telephone numbers, and the extracted telephone number is used as a new destination number, and the new destination number is used instead of the input destination number.

For example, the present invention is a communication device capable of transmitting to a plurality of types of circuit networks,
Number information storage means in which at least one telephone number of the network that can be used by the communication partner is stored together with the priority of the network for each communication partner;
Number search means for searching a telephone number associated with the communication partner of the input destination number from the number information storage means;
Calling means for calling the telephone number having the highest priority among the telephone numbers searched by the number searching means as a new destination number, and making a call to the line network corresponding to the new destination number.

  According to the present invention, it is possible to make a call with an optimum telephone number to a call partner to which a plurality of telephone numbers are assigned.

  Hereinafter, an embodiment of the present invention will be described.

  FIG. 1 is a schematic diagram of a telephone system including a main apparatus to which an embodiment of the present invention is applied.

  As shown in the figure, the main apparatus 1 of the present embodiment accommodates a plurality of extension terminals 2 via an extension line network 4 such as a LAN. The main apparatus 1 is connected to the private line network 5, the IP line network 6, the public line network 7, and the mobile communication line network 8, and is connected to any of these line networks 5-8. The extension terminal 2 is connected to the telephone devices 3A to 3C.

  Here, the telephone device 3A is connected to the private line network 5, the IP line network 6, the public line network 7, and the mobile communication line network 8, and a telephone number is assigned to each of the line networks 5-8. ing. The telephone device 3B is connected to the IP line network 6, the public line network 7, and the mobile communication line network 8, and a telephone number is assigned to each line network 6-8. The telephone device 3C is connected to the public line network 7 and the mobile communication line network 8, and a telephone number is assigned to each of the line networks 7 and 8. In addition, telephone apparatus 3A-3C is the main apparatus which accommodated the some extension terminal, for example.

  When the main apparatus 1 receives a call from the extension terminal 2, the main apparatus 1 searches for a telephone number assigned to the telephone apparatuses 3A to 3C having a destination number designated by the call. Then, the telephone number that is most advantageous in terms of cost is extracted from the searched telephone numbers, and the extracted telephone numbers are used as new destination numbers, and the line networks 5 to 8 specified by the number system of the extracted telephone numbers are extracted. To call.

  FIG. 2 is a schematic configuration diagram of the main device 1.

  As shown in the figure, the main apparatus 1 includes an extension line network IF unit 101, a dedicated line network IF unit 102, an IP line network IF unit 103, a public line network IF unit 104, and a mobile communication line network IF unit 105. A relay unit 106, a call control unit 107, a station data storage unit 108, a number search unit 110, a base number storage unit 111, an IP telephone number storage unit 112, and a number registration unit 113.

  The extension line network IF unit 101 is an interface for connecting to the extension line network 4.

  The leased line network IF unit 102 is an interface for connecting to the leased line network 5.

  The IP line network IF unit 103 is an interface for connecting to the IP line network 6.

  The public line network IF unit 104 is an interface for connecting to the public line network 7.

  The mobile communication network IF unit 105 is an interface for connecting to the mobile communication network 8.

  The relay unit 106 includes an extension line network IF unit 101, a dedicated line network IF unit 102, an IP line network IF unit 103, a public line network IF unit 104, a mobile communication line network IF unit 105, a call control unit 107, and a number registration. Relay between the sections 113.

  The call control unit 107 performs call control processing and establishes a communication path between the extension terminal 2 and the other party. Here, the call control unit 107 performs call control processing in accordance with a call control protocol adopted by a telephone service provided by the communication destination network 5 to 8.

  The station data storage unit 108 stores station data used by the call control unit 107 for call control processing. The station data storage unit 108 includes a number information storage unit 109.

  The number information storage unit 109 stores, for each call partner, at least one telephone number of the line networks 5 to 8 that can be used by the communication partner along with the priority of the line networks 5 to 8. FIG. 3 is a diagram schematically showing the registration contents of the number information storage unit 109.

  As shown in the figure, a record 1090 is registered in the number information storage unit 109 for each telephone device of the other party. The record 1090 includes a field 1091 for registering identification information (user name, etc.) of the other party, fields 1092 to 1096 for registering telephone numbers of priority “1” to “5” assigned to the other party, Have In this embodiment, the lower the call charge, the higher the priority. That is, the telephone number for connecting to the telephone device of the other party using the leased line network 5 is set as the telephone number with the priority “1”, and the other party's telephone is obtained using the IP telephone service of the subscriber or partner. The telephone number for connecting to the apparatus is set to the telephone number of the priority “2”, and the telephone number for connecting to the telephone apparatus of the other party using the IP telephone service other than the IP telephone service of the subscriber and the partner. The priority is set to “3”, the telephone number for connecting to the telephone device of the other party using the public line network 7 is set to the priority “4”, and the other party is connected using the mobile communication network 8. The telephone number for connecting to the telephone device has a priority “5”.

  As shown in FIG. 1, the telephone device 3 </ b> A is connected to a private line network 5, an IP line network 6, a public line network 7, and a mobile communication line network 8. Here, it is assumed that the IP telephone service to which the telephone apparatus 3A is subscribed is the same as or affiliated with the IP telephone service to which the main apparatus 1 is subscribed. In this case, as shown in the record 1090 in which the identification information “3A” is registered in the field 1091, the leased line network 5 is set in the fields 1092, 1093, 1095, and 1096 of the record 1090 corresponding to the telephone device 3 A, respectively. A telephone number for connecting to the telephone device 3A using the telephone number, a telephone number for connecting to the telephone device 3A using the IP telephone service of the main device 1 subscriber or partner, and using the public line network 7 A telephone number for connecting to the telephone device 3A and a telephone number for connecting to the telephone device 3A using the mobile communication network 8 are registered.

  As shown in FIG. 1, the telephone device 3 </ b> B is connected to an IP line network 6, a public line network 7, and a mobile communication line network 8. Here, it is assumed that the telephone apparatus 3B subscribes to a plurality of IP telephone services, and one of them is the same as or affiliated with the IP telephone service to which the main apparatus 1 is subscribed. In this case, as shown in the record 1090 in which the identification information “3B” is registered in the field 1091, the fields 1093, 1094, 1095, and 1096 of the record 1090 corresponding to the telephone device 3 B are respectively subscribed to the main device 1. A telephone number for connecting to the telephone device 3B using the IP telephone service of the partner or partner, a phone for connecting to the telephone device 3B using an IP telephone service other than the subscriber of the main device 1 and the partner A telephone number for connecting to the telephone apparatus 3B using the public line network 7 and a telephone number for connecting to the telephone apparatus 3B using the mobile communication network 8 are registered.

  As shown in FIG. 1, the telephone device 3 </ b> C is connected to the public line network 7 and the mobile communication line network 8. In this case, as shown in the record 1090 in which the identification information “3C” is registered in the field 1091, the fields 1095 and 1096 of the record 1090 corresponding to the telephone device 3 C are respectively telephoned using the public line network 7. A telephone number for connecting to the apparatus 3C and a telephone number for connecting to the telephone apparatus 3C using the mobile communication network 8 are registered.

  The number search unit 110 refers to the number information storage unit 109 and searches for a record 1090 including a destination number designated by transmission from the extension terminal 2. Then, the retrieved record 1090 is notified to the call control unit 107.

  In the base number storage unit 111, a list of base numbers (station numbers) adopted by the telephone service using the leased line network 5 is registered.

  The IP telephone number storage unit 112 registers a list or range of telephone numbers assigned to subscribers by the IP telephone service to which the main apparatus 1 is subscribed and the IP telephone service affiliated with the IP telephone service.

  The number registration unit 113 follows the number registration request received from the extension terminal 2 via the extension line network IF unit 101 and the relay unit 106, and stores the telephone number of the other party specified by the extension terminal 2 in the number information storage unit 109. sign up.

  FIG. 4 is a flowchart for explaining the operation of the main apparatus 1.

  When the relay unit 106 receives an incoming call from the other party via any of the dedicated line network IF unit 102, the IP line network IF unit 103, the public line network IF unit 104, and the mobile communication line network IF unit 105 (S101). YES), the incoming call is transferred to the call control unit 107. In response to this, the call control unit 107 performs an incoming call process, and forms a call path between the extension terminal 2 specified by the destination number designated by the incoming call and the call partner (S102).

  Further, when receiving a call from the extension terminal 2 via the extension line network IF unit 101 (YES in S103), the relay unit 106 passes this call to the call control unit 107. In response to this, the call control unit 107 notifies the number search unit 110 of the destination number designated by this call. The number retrieval unit 110 retrieves the record 1090 in which the destination number notified from the call control unit 107 is registered in any of the fields 1092 to 1096 of the station data storage unit 108, and performs call control on the retrieved record 1090. Notification to the unit 107 (S104).

  Next, the call control unit 107 selects the highest priority telephone number from among the unselected telephone numbers among the telephone numbers registered in the fields 1092 to 1096 of the record 1090 received from the number search unit 110. Select (S105). Then, the relay unit 106 is controlled to connect the line network IF connected to the line network corresponding to the field in which the selected telephone number is registered among the line network IF units 102 to 105 corresponding to the line networks 5 to 8. The selected telephone number is transmitted as a destination number (S106).

  Here, when the call control unit 107 receives a busy response from the destination line network or when the response from the destination line network times out (YES in S107), the call control unit 107 receives the record from the number search unit 110. If there is an unselected telephone number among the telephone numbers registered in the fields 1092 to 1096 of 1090 (YES in S109), the process returns to S105 and tries to make a call with another telephone number having the next highest priority. . If there is no unselected telephone number (NO in S109), predetermined error processing such as transferring a busy response to the caller extension terminal 2 via the relay unit 106 and the extension line network IF unit 101 is performed ( S110).

  On the other hand, when the call control unit 107 receives a response from the destination line networks 5 to 8 without timing out (NO in S107), the call control unit 107 continues the outgoing call processing and is specified by the source extension terminal 2 and the destination number. A communication path is formed with the other party (S108).

  Further, when the relay unit 106 receives a number registration request including, for example, a predetermined PB (Push Button) signal sequence from the extension terminal 2 via the extension line network IF unit 101 (YES in S111), the relay unit 106 sends the number registration request. The number is transferred to the number registration unit 113. Receiving this, the number registration part 113 performs the number registration process mentioned later (S112).

  FIG. 5 is a flowchart for explaining the number registration process (S112) shown in FIG.

  The number registration unit 113 receives the identification information of the telephone device that is the call partner from the extension terminal 2 that is the transmission source of the number registration request via the extension line network IF unit 101 and the relay unit 106 (S1121). Next, the number registration unit 113 refers to the number information storage unit 109 and checks whether there is a record 1090 in which the received identification information is registered in the field 1091 (S1122). If such a record 1090 does not exist (NO in S1122), a new record 1090 is added to the number information storage unit 109, and the received identification information is registered in the field 1091 of this record 1090 (S1123). Then, the process proceeds to S1124. On the other hand, if such a record exists (YES in S1122), the process immediately proceeds to S1124.

  In S <b> 1124, the number registration unit 113 receives the telephone number of the telephone device that is the call partner from the extension terminal 2 that is the source of the number registration request via the extension line network IF unit 101 and the relay unit 106. Next, the number registration unit 113 analyzes the number system of the accepted telephone number (S1125).

  When the telephone number system received in S1124 is a mobile communication line number system starting with “090”, “080”, etc. (“mobile communication line number” in S1125), the number registration unit 113 receives S1121. The record 1090 in which the identification information received in step 1090 is registered in the field 1091 is searched from the number information storage unit 109, corresponding to the mobile communication network 8 of this record 1090, that is, corresponding to the lowest priority “5”. The received telephone number is registered in the field 1096 (S1126). Then, the process proceeds to S1133.

  If the telephone number system received in S1124 is a "0AB to J" number, that is, a fixed telephone number system ("Public line number" in S1125), the number registration unit 113 receives the identification information received in S1121. Is retrieved from the number information storage unit 109, and in the field 1095 corresponding to the public line network 7 of the record 1090, that is, corresponding to the priority “4” lower than the IP line network 6. The received telephone number is registered (S1127). Then, the process proceeds to S1133.

  If the telephone number system received in S1124 is an IP line number starting with “050” or the like (“IP line number” in S1125), the number registration unit 113 stores the IP telephone number storage unit 112. It is checked whether or not the accepted telephone number exists (S1128). When the received telephone number does not exist in the IP telephone number storage unit 112 (NO in S1128), the number registration unit 113 displays the record 1090 in which the identification information received in S1121 is registered in the field 1091 as the number information storage unit 109. The received telephone number is registered in the field 1094 corresponding to the non-affiliated IP line number, that is, the priority “3” of the record 1090 (S1129). Then, the process proceeds to S1133.

  On the other hand, when the received telephone number exists in IP telephone number storage unit 112 (YES in S1128), number registration unit 113 records number 1090 in which identification information received in S1121 is registered in field 1091. 109, the received telephone number is registered in the field 1093 corresponding to the priority “2” corresponding to the affiliated IP line number of the record 1090, that is, higher than the non-affiliated IP line number (S1130). Then, the process proceeds to S1133.

  If the telephone number system accepted in S1124 does not correspond to any of the mobile communication line number, public line number, and IP line number ("other" in S1125), the number registration unit 113 The base number storage unit 111 is referred to, and it is checked whether or not the station number (special number) of the received telephone number is registered as the base number of the dedicated line number (S1131). When registered as a base number (YES in S1131), the number registration unit 113 searches the number information storage unit 109 for the record 1090 in which the identification information received in S1121 is registered in the field 1091. The received telephone number is registered in the field 1092 corresponding to the leased line network 5, that is, corresponding to the highest priority “1” (S1132). Then, the process proceeds to S1133.

  On the other hand, when it is not registered as the base number (NO in S1131), the number registration unit 113 transmits a voice message that prompts re-input of the telephone number to the extension terminal 2 that is the source of the number registration request, for example. Then, the process proceeds to S1133.

  In S 1133, the number registration unit 113 sends an additional registration instruction for a telephone number consisting of, for example, a predetermined PB signal sequence from the extension terminal 2 that is the source of the number registration request via the extension line network IF unit 101 and the relay unit 106. For example, it waits for an operation end instruction to be sent consisting of an on-hook signal. If an additional registration instruction has been accepted (YES in S1133), the process returns to S1124. If an end instruction is accepted (NO in S1133), this flow ends.

  FIG. 6 is a sequence diagram for explaining an operation example of the telephone system including the main apparatus to which the embodiment of the present invention is applied.

  It is assumed that the extension terminal 2 has transmitted the public line number of the telephone device 3A as a destination number (S20). The main apparatus 1 searches the number information storage unit 109 for the record 1090 in which this destination number is registered in the field 1095 (S21). Then, the private line number with the priority “1” registered in the field 1092 of this record 1090 is selected (S22), and this private line number is sent to the private line network 5 as the destination number (S23). As a result, the incoming call arrives at the telephone device 3A via the private line network 5.

  Here, it is assumed that the telephone device 3A is the main device, and any of the extension terminals accommodated by the telephone device 3A is using the dedicated line number, so that the telephone device 3A returns a busy response (S24). When receiving a busy response from the leased line network 5, the main apparatus 1 selects the affiliate IP line number with the priority “2” registered in the field 1093 of the record 1090 retrieved in S21 (S25). The line number is sent to the IP line network 6 as a destination number (S26). When the main apparatus 1 receives an incoming call response from the telephone device 3A via the IP line network 6 (S27), the main apparatus 1 transfers this incoming call response to the extension terminal 2 that is the source (S28).

  As a result, a communication path is formed between the extension terminal 2 that is the caller and the telephone device 3A that is the call partner via the IP line network 6 (S29).

  The embodiment of the present invention has been described above.

  In the present embodiment, the main apparatus 1 searches the number information storage unit 1090 for a record 1090 having a destination number specified by the call received from the extension terminal 2. Then, the telephone number with the highest priority is selected from the telephone numbers registered in the searched record 1090, and the line corresponding to the numbering system of the destination number is selected with the selected telephone number as a new destination number. Send to networks 5-8. Therefore, according to the present embodiment, it is possible to make a call to a call partner having the most advantageous cost number for a call partner to which a plurality of telephone numbers are assigned.

  Further, in the present embodiment, the main apparatus 1 is registered in the retrieved record 1090 when a busy response is received from the destination network or when a response from the destination network times out. Among the telephone numbers, a telephone number having the second highest priority after the telephone number of the destination network is used as a new destination number, and is transmitted to the circuit network corresponding to the number system of this new destination number. Therefore, according to the present embodiment, it is possible to connect to a calling party with a telephone number that is most advantageous in terms of cost among telephone numbers that can be actually called, for a calling party to which a plurality of telephone numbers are assigned. it can.

  Further, in the present embodiment, the main apparatus 1 uses the telephone number received from the extension terminal 2 that is the transmission source of the number registration request, the identification information of the call partner received from the extension terminal 2, and the number of this telephone number. The numbers are stored in the number information storage unit 109 in association with the priorities given in advance to the line networks 5 to 8 adopting the system. For this reason, according to the present embodiment, it is possible to automatically associate the priority with the telephone number received from the extension terminal 2 that is the transmission source of the number registration request, and thus it is possible to save the user's trouble. .

  In the present embodiment, the main apparatus 1 gives the highest priority when the line network that employs the telephone number system received from the extension terminal 2 that is the transmission source of the number registration request is the private line network 5. Therefore, priority can be given to the telephone service of the private line network 5 with the lowest call charge.

  In the present embodiment, the main apparatus 1 uses the telephone number when the line network adopting the number system of the telephone number received from the extension terminal 2 that is the transmission source of the number registration request is the IP line network 6. Is higher than the priority in the case where the telephone number is a telephone number of an IP telephone service other than the subscriber or affiliated IP telephone service. By doing in this way, it is possible to prioritize the subscription / affiliation IP telephone service with a lower call charge over other IP telephone services.

  Further, in the present embodiment, the main apparatus 1 determines the priority when the line network that employs the telephone number system received from the extension terminal 2 that is the transmission source of the number registration request is the public line network 7. Since the priority is lower than that in the case of the IP line network 6, an IP telephone service with a lower call charge can be given priority over a fixed telephone service.

  Further, in the present embodiment, the main apparatus 1 determines the priority when the line network adopting the telephone number number system received from the extension terminal 2 that is the transmission source of the number registration request is the mobile communication line network 8. Therefore, the use of the mobile communication service with the highest call charge can be suppressed as much as possible.

  In addition, this invention is not limited to said embodiment, Many deformation | transformation are possible within the range of the summary. For example, the configuration of the main apparatus 1 may be executed by an integrated logic IC such as ASIC (Application Specific Integrated Circuit) or FPGA (Field Programmable Gate Array), or DSP (Digital Signal PC). (Personal Computer) or the like may be executed in software by a computer.

  Further, in the above embodiment, the main device 1 is designated by calling from the extension terminal 2 when a busy response is received from the call destination network or when a response from the call destination network times out. Among the telephone numbers registered in the record 1090 having the registered destination number, the telephone number having the second highest priority after the telephone number of the destination network is used as the new destination number. Call the network corresponding to the system. Here, when the priority of the new destination number is lower than the priority of the destination number designated by the call from the extension terminal 2, the process can be terminated without making a call with the new destination number. Good. Or you may make it ask | require approval of the transmission to a new destination number. By doing in this way, it can prevent becoming higher than the cost at the time of making a call with the telephone number designated by the transmission from the extension terminal 2.

  In the above embodiment, the case where the main apparatus 1 can make a call to the private line network 5, the IP line network 6, the public line network 7, and the mobile communication line network 8 has been described as an example. It is not limited to this. The main device 1 only needs to be able to transmit to a plurality of types of line networks.

  In the above embodiment, the case where the present invention is applied to the main apparatus 1 has been described as an example. However, the present invention is not limited to this. The present invention can be widely applied to communication apparatuses capable of transmitting to a plurality of types of circuit networks. For example, the present invention can be applied to a telephone that can be transmitted to a plurality of types of circuit networks.

FIG. 1 is a schematic diagram of a telephone system including a main apparatus to which an embodiment of the present invention is applied. FIG. 2 is a schematic configuration diagram of the main device 1. FIG. 3 is a diagram schematically showing the registration contents of the number information storage unit 109. FIG. 4 is a flowchart for explaining the operation of the main apparatus 1. FIG. 5 is a flowchart for explaining the number registration process (S112) shown in FIG. FIG. 6 is a sequence diagram for explaining an operation example of the telephone system including the main apparatus to which the embodiment of the present invention is applied.

Explanation of symbols

  1: main device, 2: extension terminal, 3A to 3C: telephone device, 4: extension line network, 5: leased line network, 6: IP line network, 7: public line network, 8: mobile communication line network, 101 : Extension network IF section, 102: Private network IF section, 103: IP network IF section, 104: Public network IF section, 105: Mobile communication network IF section, 106: Relay section, 107: Call control 108: Station data storage unit 109: Number information storage unit 110: Number search unit 111: Site number storage unit 112: IP telephone number storage unit 113: Number registration unit

Claims (9)

A communication device capable of transmitting to multiple types of network,
Number information storage means in which at least one telephone number of the network that can be used by the communication partner is stored together with the priority of the network for each communication partner;
Number search means for searching a telephone number associated with the communication partner of the input destination number from the number information storage means;
Calling means for calling the telephone number having the highest priority among the telephone numbers searched by the number searching means as a new destination number, and making a call to the line network corresponding to the new destination number. Communication device. The communication device according to claim 1,
The transmitting means is
When a busy response is received from the destination network or when a response from the destination network times out, the telephone number of the destination network out of the telephone numbers searched by the number search means A telephone number having the next highest priority as a new destination number, and transmitting to a circuit network corresponding to the new destination number. The communication device according to claim 2,
The transmitting means is
When a busy response is received from the destination line network or when a response from the destination line network times out, the telephone number of the destination line network out of the telephone numbers searched by the number search means Next, if there is a telephone number having a higher priority and a telephone number having a priority higher than the input destination number, the line corresponding to the new destination number is set as the new destination number. A communication device characterized by transmitting to a network. The communication device according to any one of claims 1 to 3,
A number information registration unit for registering the input telephone number in the number information storage unit in association with the designated communication partner;
The number information registration means includes:
Registering the input telephone number in the number information storage means in association with the designated calling party and a priority given in advance to a network adopting the numbering system of the telephone number. A communication device. The communication device according to claim 4,
One of the plurality of types of line networks is a dedicated line network,
The number information registration means includes:
A communication apparatus characterized in that the highest priority is given when the line network that employs the number system of the input telephone numbers is the dedicated line network. The communication device according to claim 4 or 5, wherein
One of the plurality of types of circuit networks is an IP circuit network,
IP telephone number storage means for storing a subscribed IP telephone service to which a user of the communication device is subscribed and a telephone number that can use the affiliated IP telephone service that is affiliated with the subscribed IP telephone service;
The number information registration means includes:
The priority when the line network adopting the number system of the input telephone number is the IP line network and the telephone number is stored in the IP telephone number storage means is the number of the input telephone number. A communication apparatus characterized by having a higher priority than the case where the line network adopting the system is the IP line network and the telephone number is not stored in the IP telephone number storage means. The communication device according to claim 6,
One of the plurality of types of line networks is a public line network,
The number information registration means includes:
Priority when the line network adopting the input telephone number number system is the public line network, and priority when the line network adopting the input telephone number number system is the IP line network A communication device characterized by being lower than the above. The communication device according to any one of claims 4 to 7,
One of the plurality of types of line networks is a mobile communication line network,
The number information registration means includes:
A communication apparatus characterized in that the priority is lowest when a line network employing a number system of inputted telephone numbers is the mobile communication line network. A transmission method to a plurality of types of circuit networks by a communication device,
For each communication partner, at least one telephone number of the network that can be used by the communication partner is stored together with the priority of the network,
A telephone number stored in association with the same communication partner as the input destination number is searched, and the new telephone number having the highest priority among the searched telephone numbers is set as the new destination number. A calling method characterized in that a call is sent to a line network corresponding to a number.

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