JP2007096674A - Access code addable telephone set - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an access code addable telephone set which is connected to either of a public network subscriber line and a PBX extension and can be connected to an outside line by a simple button operation when originating to a PBX by using a caller's number received through caller's number notification service. <P>SOLUTION: The access code addable telephone set is equipped with an outside line origination button 24, with which a user performs operation input by one operation to connect with an outside line by using the caller's number, as an access code transmission button. When a caller's number selected as a connection destination is displayed at a screen display part 15, the operation input of the outside line origination button 24 by the user places a control part 10 in operation and the control part 10 takes an access code for the outside line out of an access code memory 23 and originates from an origination number sending part 25 to the PBX by dialing. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is a telephone set corresponding to a caller ID notification service, and even when connected to another communication network through an exchange by adding an access code, it is possible to start from a registered other party dial number by a simple operation. The present invention relates to a telephone to which an access code can be added.

  In recent years, a single telephone has a multi-function and receives not only a call history memory that records a destination number at the time of outgoing call but also a caller ID record at the time of an incoming call corresponding to a caller ID notification service. Most models have a history memory. Furthermore, the single telephone has a screen display, and when the user selects one telephone number displayed on the screen and receives a call button operation, the displayed telephone number is sent to the connected telephone exchange. Dialing automatically. Here, the single telephone is a telephone that can be connected to a public network subscriber line alone.

  However, when such a single telephone is connected as, for example, an extension of a PBX (private automatic exchange), it is necessary to add an external line access number “0” for outgoing calls to the public network. In the transmission history, an access number is added to the outside line transmission, so there is no dial addition for re-calling. In the case of normal phone book registration, it is possible to add an access number, so that it is possible to avoid adding a dial for re-call. However, in the case of an incoming call history, in the caller number notification service in the public network, for example, a telephone number with a national number of 10 digits or more starting from a leading code “0” is recorded. Therefore, even if the telephone has a caller number memory based on the incoming call history and automatic dialing is possible at the time of outgoing call, when “0” is sent through the external line connection, the “0” taken after the dial “0” is extracted from the incoming call history. You need to dial "Caller ID".

  As a conventional telephone to which an access code can be added, for example, there is a “digital cordless telephone whose call number can be controlled” disclosed in Japanese Patent Application Laid-Open No. 11-68915 (hereinafter referred to as Patent Document 1). This telephone can communicate with the base station of the private switching network and the base station of the public network via a wireless line, and automatically sets the mode to the private mode or the public mode based on the control signal received from each base station. it can. For example, when the call destination is registered with a public network dial number, the registered number is transmitted as it is in the public mode. On the other hand, in the case of the self-employed mode, a predetermined access code, for example, an external line access number “0” of a private branch exchange (PBX) is added before the registered number and is transmitted. Therefore, the telephone user simply selects the other party dial number and makes a call operation when making a call, and makes a call via PBX or a direct call to the public network, that is, an outside line access number “0”. An appropriate access code is automatically added without being conscious of whether or not to add it.

  However, this access code attachable telephone receives a control signal for mode setting from a radio base station and automatically sets the mode to be self-employed or public. It cannot be applied to a general single telephone connected to another telephone network through an exchange.

  As another telephone apparatus to which an access code can be added, for example, Japanese Unexamined Patent Application Publication No. 2002-77360 (hereinafter referred to as Patent Document 2) discloses a button telephone apparatus based on an “electronic switching system”. In other words, the telephone main unit records the caller ID for the incoming call to the telephone terminal connected to one side in the incoming call history, and the access code for accessing the other switching network from the telephone exchange connected to the other side. . The telephone terminal is provided with a one-touch key corresponding to the access code recorded in the telephone main unit. When a desired destination number is selected from the incoming call history by the user, the other party selected by receiving the operation of the one-touch key. An access code is added before the destination number for transmission. Therefore, the user can easily add a desired access code from a registered destination dial number by a simple operation such as a one-touch key operation.

  However, this access code-applicable telephone is incorporated in a button telephone apparatus and combined with a telephone main apparatus corresponding to PBX. Therefore, in Patent Document 2, the incoming call history memory is provided in the telephone main apparatus or PBX (private branch exchange) directly connected, and a special signal system is required with the switching apparatus. It cannot be applied to a general single telephone connected directly to a telephone exchange of a public office by wire.

JP 11-68915 A JP 2002-77360 A

  The problem to be solved is that a single telephone that can be fixedly connected to both the PBX and the public office telephone switch by wire sends a call from the connection destination telephone switch to a communication partner telephone through another telephone switching network. In this case, when making a call using the recorded dial number, it is necessary to add an access code added to the recorded dial number and dial, and there is a demand for simplification of user operations.

  In particular, the caller number recorded in correspondence with the caller ID notification service can be received via the telephone network of any telephone company, for example, in the case of a general public telephone subscriber, “area code + phone area code + It is the national number of “subscriber number”. However, when making a call, an external line access number “0”, for example, is added to the caller number before the caller number, and an access code “00XX” may be added, for example, when passing through a certain telephone carrier. . In this case, since the telephone exchange directly connected to this single telephone distributes the connection destination of the call by this access code, it is not possible to avoid following the dial by the access code.

  The present invention is a single telephone that can be directly connected regardless of whether it is a self-operated or publicly-operated telephone exchange type, and even if an access code is added to the other party via another telephone network, the registered party The purpose is to make it easy to dial a destination number with a simple operation.

  For this reason, the single telephone of the present invention includes a destination number memory in which a communication destination number is recorded in advance, an access code memory in which at least one access code is recorded in advance, and the access code instructing dial transmission of the access code. At least one access code transmission button corresponding to each, a display screen for displaying the communication partner number called from the partner number memory by the user on the screen, and one communication partner number displayed on the display screen Then, when receiving the designation of the access code transmission button, the access code corresponding to the access code transmission button is called from the access code memory, and the access code and the designated communication partner number are The main feature is that it includes a control unit that automatically and sequentially transmits the dial.

  In the transmission history or registration in the telephone directory, there is usually no problem because an access code is added by the user as a necessary dial code. However, if the user can add an access code by one touch of an access code transmission button at the time of transmission, the user can register except for an access code having a plurality of numbers. Therefore, when the single telephone is compatible with the caller ID notification service, a reception history memory in which the caller ID is recorded at the time of an incoming call can be included in the destination number memory.

  When a single telephone is directly connected to the PBX, the access code transmission button is used as an external line transmission button, and when the caller receives an incoming call and identifies that the caller is an external line of the PBX, it corresponds to the caller number received. And a means for recording an outside line flag in the reception history memory. When the control unit receives a caller number designation of a communication partner having the external line flag from the reception history memory and makes a normal call, the control unit calls the access code from the access code memory and is designated as the access code. The caller ID is automatically dialed and sent sequentially. This outside line flag may be an access code for sending an outside line. That is, the access code memory area may be a recording area for the outside line flag. In this case, the access code memory described above becomes unnecessary. When the PBX constitutes a PBX network and has a dedicated line, a dedicated line transmission button can be provided in addition to the outside line transmission button.

 When the single telephone is directly connected to the PBX, the access code transmission button can be set as the PBX setting switching button. The control unit detects an outside line connection by the number of digits of the caller number when receiving a caller number designation from the reception history memory and makes a normal call, and accesses from the access code memory when an outside line connection is detected. The code is called and the access code and the designated caller number are sequentially dialed. This configuration is effective when the PBX is an extension number within 5 digits which is less than 6 digits from 6 digits of the public local telephone number. This is fully applicable to cases where the caller ID history record is a public national number of 10 digits or more. Further, the access code can be selected by identifying the start code of the caller number by giving the start code “0” to the national number. The same applies to the PBX leased line transmission. As a result, the user can make a call to the destination number selected on the screen by operating only the one-touch call button without being aware of the PBX external line access number or dedicated line access number.

  The single telephone of the present invention has a destination number memory, an access code memory, an access code transmission button, a display screen, and a control unit. This control unit is one of the communication destination numbers recorded in the destination number memory. Is designated by the user from the screen display, and when the designation of the access code transmission button is received, the access code corresponding to this access code transmission button and recorded in the access code memory is called, and this access code and designation are designated. The transmitted communication partner number is sequentially dialed to the connected telephone exchange. For this reason, the user can select and designate one communication partner number displayed on the screen, and can make a desired dial transmission by simply operating the access code transmission button corresponding to this communication partner number. Regardless of whether the destination telephone exchange is self-employed or publicly managed, even when a call is made by adding a multi-digit access code to another party via another telephone network, the access code can be easily transmitted with a simple one-touch operation. There is an advantage that can be.

  Since the access code is added by the user as a necessary dial code, there is usually no problem in the transmission history or registration in the telephone directory. However, in the case of a caller ID notification service, no access code is assigned to the caller ID recorded in the incoming call history. That is, when the single telephone supports the caller ID notification service, the destination number memory corresponds to a reception history memory that automatically records the caller ID when an incoming call is received, and the access code is automatically set. Therefore, the present invention is particularly effective.

  When making a call from the connected telephone exchange to the other party's telephone through another telephone exchange network, it is necessary to additionally dial the access code added to the recorded dial number when making a call using the recorded dial number. For the purpose of requiring simplification with respect to user operation, an access code transmission button corresponding to the access code is recorded in advance, and the recorded destination dial number is called and the destination dial is called. This is realized by sequentially transmitting the access code corresponding to the access code transmission button and the communication partner number when the access code transmission button corresponding to the number is operated.

  Several examples will be shown and described below, but each of them can be realized by separating or combining the functions, and the following description does not limit the present invention.

  A first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is an explanatory diagram showing, in functional blocks, an embodiment of a single telephone 1 according to the present invention. It is assumed that the single telephone 1 is compatible with a caller ID notification service on the public network, and the connected telephone exchange is a PBX and functions as a PBX extension telephone. Only functional blocks related to the present invention are shown. Therefore, although it is actually provided with, for example, a memory power source, a processor power source, and a dial pad, which are essential for the single telephone 1, they are not shown in the figure.

  The illustrated single telephone 1 includes a control unit 10, a line I / F (interface) unit 11, a signal number identification unit 12, an incoming ringing unit 13, a reception history memory 14, a screen display unit 15, a voice conversion input / output unit 16, A destination selection button 21, a transmission button 22, an access code memory 23, an outside line transmission button 24, and a transmission number transmission unit 25 are included.

  The control unit 10 is a processor that is connected to each component in the single telephone 1 and executes functions such as incoming call control, outgoing call control, number addition control, and external line flag search by a program, for example. This will be described later with reference to a flowchart. The line I / F unit 11 can be connected to a subscriber line of a telephone exchange, and is connected to the control unit 10, the signal number identification unit 12, the voice conversion input / output unit 16, and the transmission number transmission unit 25.

  The signal number identification unit 12 pulls in the telephone line from the line I / F unit 11, identifies the call signal received by the incoming call from the telephone exchange, and notifies the control unit 10 and the incoming ringing unit 13. The incoming ringing unit 13 receives a notification from the signal number identification unit 12 and rings the bell or buzzer to notify the user of the incoming call. Further, when the connection destination of the single telephone 1 is PBX, the ringing cycle can be made different depending on whether the incoming call is from the outside line or the incoming call from the extension line. And incoming line incoming calls can be identified, and the ringing of the incoming ringing unit 13 can be made different.

  By the way, the difference in the incoming call signal from the PBX for judging the incoming / outgoing call of the external line / internal line is, for example, a 1-second ringing tone and a 2-second rest (1-second ringing sound / 2-second silence) in the case of the external line, The extension is a combination of a ringing tone at intervals of 0.25 seconds and a 2-second break (0.25 seconds ringing tone, 0.25 silence, 0.25 seconds ringing tone, 2 seconds silence).

  Further, since the single telephone 1 is compatible with the caller number notification service, the signal number identification unit 12 identifies the caller number received via the line I / F unit 11 at the time of the incoming call together with the extension / outside line. Then, it can be sent to the control unit 10. The control unit 10 records the caller number in the reception history memory 14 and sets a predetermined external line flag for the caller number in the case of an incoming call. As will be described later, the outside line flag may be an outside line access code.

  Under the control of the control unit 10, the reception history memory 14 automatically records the caller number identified by the signal number identification unit 12 at the time of an incoming call as a reception history together with an outside line flag if an outside line is received. . Although not shown in the figure, when a communication partner number is recorded in advance when a call is made, a call history memory is provided. However, a call destination number memory in which call history is integrated can be formed. . The screen display unit 15 has a display screen that displays the dialed number, the number called from the memory, the time, the call time, and the like under the control of the control unit 10. The voice conversion input / output unit 16 connects a telephone line connected from the telephone exchange via the line I / F unit 11 to a speaker and a microphone under the control of the control unit 10, and performs an electrical signal and a voice signal on the communication path. Mutual conversion with is performed.

  The partner selection button 21 instructs the control unit 10 to select a desired caller number as a connection partner number from the reception history memory 14 when making a call, for example, when making a call. The number is called and displayed on the screen display unit 15. For example, the caller number is sequentially called from the latest received number. The call button 22 instructs the control unit 10 to start dialing using, for example, the caller number displayed on the screen as a connection partner number by the operation input.

  The access code memory 23 records in advance an access code corresponding to the external line flag recorded in the reception history memory 14. Here, it is assumed that an access code “0” is recorded for PBX external line transmission. In response to the operation input, the outside line transmission button 24 instructs the control unit 10 to add the access code “0” for outside line transmission to the dial number displayed on the screen. Based on the instruction received from the control unit 10, the transmission number transmission unit 25 transmits the dial number for transmission to the telephone exchange via the line I / F unit 11.

  Next, the incoming call procedure in the single telephone 1 will be described with reference to FIG.

  First, when the line I / F unit 11 receives an incoming call from the PBX as a paging signal, the signal number identification unit 12 detects this signal, and the incoming / outside line incoming call is detected from the paging signal received as described above. Is identified and notified to the incoming ringing unit 13, and the incoming ringing unit 13 performs ringing with a ringing tone corresponding to the notified incoming / outgoing incoming call (step S1). Next, the signal number identification unit 12 identifies the caller number from the signal transmitted from the PBX, and notifies the control unit 10 together with the identification of the incoming / outgoing incoming call.

  Therefore, when the identification notification is an extension call (NO in step S2), the control unit 10 records the received caller number in the reception history memory 14 (step S3), and displays the caller number on the screen display unit 15. The number is displayed on the screen (step S4). Next, the control unit 10 instructs the incoming ringing unit 13 to stop ringing (step S6) when receiving an operation input from a user, for example, a response button (not shown) (step S5). The voice conversion input / output unit 16 is instructed to form a communication path between the PBX and the speaker / microphone, thereby enabling a call.

  When the above step S2 is “YES” and an outside line is received, the control unit 10 records the received caller number in the reception history memory 14 with an outside line flag (step S7), and proceeds to the above step S4. The caller number is displayed on the display unit 15. At this time, an outside line flag can also be displayed.

  Next, a calling procedure in the single telephone 1 will be described with reference to FIG.

  First, the control part 10 receives the instruction | indication by the operation input of the other party selection button 21 by a user, and displays the caller number used as a connection other party number on the screen display part 15 from the reception log | history memory 14 (step S11). Here, when the operation input of the external line transmission button 24 is accepted (YES in step S12), the control unit 10 reads the access code “0” corresponding to the external line transmission button 24 from the access code memory 23. Next, the control unit 10 notifies the caller number sending unit 25 of the caller number displayed on the screen as the destination number following this access code “0”, and dials the PBX via the line I / F unit 11. (Procedure S13). The PBX receives the first code “0” and connects to the outside line.

  In such a procedure, the dial number displayed on the screen need not be limited to the caller number in the reception history memory 14. That is, even if the destination dial number recorded in the outgoing call history memory 14 or the telephone book created separately is viewed by the user by looking at the dial number displayed on the screen and determining that the outgoing call is outgoing, the external line outgoing button 24 is operated and input. Thus, since the “0” transmission corresponding to the outside line can be automatically performed, the user can save the trouble of the additional dialing.

  Further, when the above step S12 is “NO” and the operation input by the normal call button 22 is accepted (step S14), the control unit 10 automatically identifies the incoming / outgoing incoming call with the connection destination PBX. Since the function is present (YES in step S15), the reception history memory 14 is searched for an external line flag corresponding to the caller ID displayed on the screen (step S16). If there is an outside line flag (YES in step S17), the procedure proceeds to step S13, and the control unit 10 sets the caller number displayed on the screen as the destination number following the access code “0” as the call number sending unit. 25 and dial out to the PBX via the line I / F unit 11.

  On the other hand, when the procedure S15 is “NO” and the automatic identification function of the incoming / outgoing call is not provided, or when the procedure S17 is “NO” and there is no external line flag, the control unit 10 does not have an access code. Then, the caller number displayed on the screen as the other party number is notified to the call number sending unit 25, and the PBX is dialed via the line I / F unit 11 (step S18).

  As will be described after step S14, when the single telephone 1 adopts a configuration having an automatic identification function of incoming / outgoing incoming calls with the connection destination PBX, the outside outgoing call button 24 is not used, Since the outside line can be transmitted only by the operation input of the transmission button 22, the user can make a call without considering whether the connection partner is an outside line or an extension line.

  In the above description, the access code “0” corresponding to the external line flag in the reception history memory 14 is recorded in the access code memory 23 in advance, but the access code dial number “0” is set in the external line flag, and the external line flag “0”. Subsequently, the caller number can be dialed. In this case, the access code memory 23 is not necessary.

  A second embodiment of the present invention will be described with reference to FIGS.

  FIG. 4 is a functional block diagram showing an embodiment when the destination telephone exchange is a general public telephone exchange or PBX but does not have an automatic identification function for incoming / outgoing incoming calls. Since these main components are included in the first embodiment, the same reference numerals are given and description thereof is omitted. Further, when a single telephone is connected to, for example, a PBX, an external line access number such as “0” for a public network or a private line access number such as “8” for a private network must be added and transmitted. Further, even when connecting to a public network, a plurality of telephone operators can be accessed by contract, so a plurality of access codes, for example, “00XX” is required.

  That is, compared with the first embodiment, the control unit 10A does not have an outside line flag search function. The reception history memory 14A does not have an outside line flag area. The access code memory 23A records a plurality of access codes in advance. The outside line transmission button is an access code transmission button 24A, which is provided for each of a plurality of access codes.

  Next, a calling procedure in the single telephone 1A will be described with reference to FIG. 4 and FIG.

  First, the control unit 10 receives an instruction by an operation input of the partner selection button 21 from the user, and displays the caller number extracted from the reception history memory 14A on the screen display unit 15 as a connection partner number (step S21). To do. Here, when the operation input of the access code transmission button 24A designated by the user is accepted (YES in step S22), the control unit 10 obtains the access code corresponding to the access code transmission button 24A from the access code memory 23A. read out. Next, the control unit 10 notifies the calling number sending unit 25 of the caller number displayed on the screen as the other party number following this access code, and dials the connected telephone exchange via the line I / F unit 11. (Procedure S23). The connected telephone exchange receives the first access code and selects the connected line.

  On the other hand, when the above step S22 is “NO” and the operation input by the normal call button 22 is accepted (step S24), the control unit 10 uses the caller number displayed on the screen as the destination number without the access code. The calling number sending unit 25 is notified and dialed to the connected telephone exchange via the line I / F unit 11 (step S25).

  For a call history or registration in the telephone directory, there is usually no problem because the user adds the access code as a necessary dial code. However, in the case of the caller ID notification service, the access code is not given to the caller ID in which the incoming call history is recorded, so the present invention is particularly effective. Further, in the case of passing through a telephone network by another telephone carrier via a directly connected telephone exchange, for example, an access code “00XX” is added, which is particularly effective in this aspect. In this case, the connection destination of the call is distributed by this access code in the telephone exchange directly connected to this single telephone.

  A third embodiment of the present invention will be described with reference to FIGS.

  FIG. 6 is a functional block diagram showing an embodiment when the destination telephone exchange is a general public telephone exchange or PBX but does not have an automatic identification function for incoming / outgoing incoming calls. Since these main components are included in the first embodiment, the same reference numerals are given and description thereof is omitted. When a single telephone is connected to the PBX, an external line access number to the public network such as “0” or a private network access number such as “8” must be added and transmitted.

  In this embodiment, when a single telephone is connected to the PBX, if the number of digits of the recorded telephone number is 10 digits or more, or if the head code is “0”, an outside line access code such as “0” is set. Select automatically. Also, based on the number of digits of the recorded telephone number, for example, when a PBX network with a 6-digit dedicated line of “region code + extension number” is constructed, or when the head code is a predetermined region code A line access code such as “8” can be automatically selected and dialed.

  That is, as compared with the first embodiment, the control unit 10B does not have an outside line flag search function, but has a function of identifying the number of digits of the screen display number and the area code. It is assumed that the reception history memory 14B has no outside line flag area and records a destination number without an access code. The access code memory 23B records a plurality of access codes in advance. The PBX setting switching button 24B is assumed to be a switching key that is set when the connection destination telephone exchange is PBX.

  Next, a calling procedure in the single telephone 1B will be described with reference to FIG.

  First, the control unit 10 accepts an instruction by an operation input of the partner selection button 21 by the user, and displays, for example, a caller number serving as a connection partner number from the history memory 14B on the screen display unit 15 (step S31). . Here, when the operation input of the call button 22 designated by the user is received (step S32), the control unit 10 determines the connection destination based on the number of digits and the head code of the caller number displayed on the screen. It is identified as either an external line or a dedicated line (procedure S33).

  Next, when the setting of the PBX setting switching button 24B is other than “PBX” (NO in step S34), the control unit 10 dials the caller number displayed on the screen (step S35). On the other hand, when the procedure S34 is “YES” and the setting of the PBX setting switching button 24B is “PBX” and the extension is identified based on the identification result of the procedure S33 (YES in the procedure S36), the procedure is the procedure described above. In S35, the caller number displayed on the screen is dialed. If step S36 is "NO" and the identification result is other than an extension, the control unit 10B reads the corresponding access code from the access code memory 23B and dials it. Following this, the control unit 10B notifies the caller number displayed on the screen as the destination number to the caller number sending unit 25 and dials the connection destination PBX via the line I / F unit 11 (step S37). . The connection destination PBX receives the first access code and selects the connection destination line.

[Other Examples]
In the first embodiment described above, the PBX has only an extension line and an outside line, but it can further include a dedicated line constituting the PBX network. In this case, a dedicated line flag is set in the area of the outside line flag of the caller ID.

  Furthermore, it is also possible to configure by mixing a plurality of the above-described embodiments or by dividing and reducing functions. Therefore, for example, the access code transmission button described in the third embodiment can be provided with an access code transmission button so as to have a function of manual addition. That is, the above description does not limit the present invention.

  A user can add and send an access code with a simple operation by using an access code transmission button for dialing by adding an access code to a registered telephone number with a one-touch operation, so an access code including a plurality of numbers is particularly required. Suitable for use.

It is explanatory drawing which showed one Embodiment of the telephone to which an access code can be added with the functional block. Example 1 It is explanatory drawing which showed one Embodiment in the incoming call procedure of the telephone shown by FIG. 1 with the flowchart. Example 1 It is explanatory drawing which showed one Embodiment in the calling procedure of the telephone shown by FIG. 1 with the flowchart. Example 1 It is explanatory drawing which showed one Embodiment of the telephone to which an access code can be added with the functional block. (Example 2) FIG. 5 is an explanatory diagram showing, in a flowchart, an embodiment of the calling procedure of the telephone set shown in FIG. 4. (Example 2) It is explanatory drawing which showed one Embodiment of the telephone to which an access code can be added with the functional block. (Example 3) It is explanatory drawing which showed one Embodiment in the calling procedure of the telephone shown by FIG. 6 with the flowchart. (Example 3)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1A, 1B independent telephone 10, 10A, 10B Control part 11 Line | wire I / F (interface) part 12 Signal number identification part 13 Incoming ringing part 14, 14A Reception history memory 14B History memory 15 Screen display part 16 Voice conversion input / output Unit 21 Counterpart selection button 22 Call button 23, 23A, 23B Access code memory 24 External line call button 24A Access code call button 24B PBX setting switch button 25 Call number sending part

Claims (7)

  A partner number memory in which a communication partner number is recorded in advance, an access code memory in which at least one access code is recorded in advance, and at least one access code transmission corresponding to each of the access codes instructing dial transmission of the access code A button, a display screen for displaying a communication partner number called from the partner number memory by the user on the screen, and designation of one communication partner number displayed on the display screen; A control unit that, when receiving a button designation, calls an access code corresponding to the access code transmission button from the access code memory, and sequentially dials and transmits the access code and the designated communication partner number A telephone with an access code that can be added.   2. The access code appendable telephone according to claim 1, wherein the telephone corresponds to a caller ID notification service, and the destination number memory includes a reception history memory for recording a caller ID when an incoming call is received. An access code can be added.   3. The access code appendable telephone according to claim 2, wherein when the telephone is directly connected to a private branch exchange (PBX) and the access code transmission button is an external line transmission button, the control unit receives a call signal received by an incoming call. When the sender is identified as an outside line of the PBX, an outside line flag is recorded in the reception history memory corresponding to the received caller number, and is called from the reception history memory and displayed on the screen by the user. When receiving the designation of the caller number of the communication partner having the outside line flag and then receiving the designation of the outside line sending button, the access code corresponding to the outside line sending button is called from the access code memory, A telephone capable of adding an access code, wherein the access code and a designated communication partner number are sequentially dial-transmitted.   4. The access code attachable telephone according to claim 3, wherein the access code memory area is a recording area for the outside line flag.   4. The access code attachable telephone according to claim 3, wherein the access code transmission button is further provided with a dedicated line transmission button, and the control unit is a dedicated line of the PBX from a call signal received by an incoming call. In response to the caller number received, a dedicated line flag is recorded in the reception history memory, and a communication partner having the dedicated line flag that is called from the reception history memory and displayed on the screen by the user. When the designation of the dedicated line transmission button is received, the access code corresponding to the dedicated line transmission button is called from the access code memory, and the communication designated as the access code is performed. A telephone capable of adding an access code, characterized by sequentially dialing a destination number.   6. The access code attachable telephone according to claim 5, wherein the access code memory area has a recording area for recording the external line flag or the dedicated line flag. 3. The access code appendable telephone according to claim 2, wherein when the telephone is directly connected to a private branch exchange (PBX) and the access code transmission button is used as a PBX setting switching button, the control unit reads from the reception history memory. When it is determined that a connection to an external line / dedicated line is made based on the number of digits of the caller number and / or the leading code when making a call upon receiving a caller number, an access corresponding to the external line / dedicated line is accessed from the access code memory. A telephone capable of adding an access code, wherein a code is called and the access code and a designated caller number are sequentially dial-transmitted.

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