JPH11341117A - Telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately receive caller information transmitted during speech communication without causing any trouble in a state of speech. SOLUTION: When a caller information transmission start signal by a DTMF signals is detected by a caller information transmission start signal detecting circuit 7, a main control part 12 disconnects a line/hand-set connection switch 3, and disconnects a speech path from a telephone line 1 through a line interface 2 to a handset 4. Thus, any irritating sound can be prevented from being transmitted from the handset 4 to a user by a mute operation. The main control part 12 judges the transmission quality of the telephone line 1 from the transmitting time or transmitting time interval of the caller information transmission start signal, and judges whether or not a caller information receiving part 6c which is realized by the program operation of a digital signal processor 6 should be activated. When an incoming signal is received, the communicating state with the communicating party is stopped, and after the end of the reception of the incoming signal, the communicating state with the communicating party is resumed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone having a function of displaying caller information when a call is received during a call.

[0002]

2. Description of the Related Art There is a call waiting service as a method for notifying a user during communication when an incoming call is received from outside the communication partner during communication. However, in this method, a caller number cannot be notified, and a communication information notification service is under study. In the communication information notification service, when a call is interrupted by a call waiting or the like from a third party during communication between the two parties, the telephone number of the interrupting caller is notified according to a predetermined procedure.

FIG. 4 shows an example of a connection operation sequence of the communicating information notification service. When there is an incoming call during communication on the line of the caller's call interruption telephone number display service subscriber concluded with NTT, the subscriber line exchange sends the information receiving terminal being communicated to the information receiving terminal from the third party. An incoming call tone is transmitted to inform that there is an incoming call.
A ring back tone (RBT), which is a ringing tone, is returned to the third party that has performed the interruption. Next, after a time of about one second, an information receiving terminal activation sound is transmitted as shown in FIG. The local exchange uses the DTMF signal to activate a communication information notification sequence provided in the information receiving terminal. The information receiving terminal activation sound is transmitted in accordance with a predetermined transmission standard by combining a DTMF signal as a sender information transmission start signal. At that time, the communication path with the communication partner is temporarily disconnected. As shown below, after an interval of 0.3 seconds or more, the subscriber line exchange sends out information on a third party or the like by a modem signal to the information receiving terminal. The modem signal representing the information and the like is configured so that as much information as possible can be transmitted in a short time by effectively using the limited frequency band of the telephone line. When the transmission of the information or the like is completed, after about 0.1 second, the communication path with the communication partner is re-formed. After the communication path is cut off by, the communication partner remains silent, and the communication with the communication partner can be resumed by re-establishing the communication path. During this time, the communication partner does not transmit the modem signal such as the receiving terminal start-up sound or information, and the silent state continues. Even after returning to the two-party communication state with the communication partner, the subscriber line exchange continues to transmit the ringing tone, and the user of the information receiving terminal can send a call to the third party interrupter if necessary. The communication partner is switched.

[0004] The communication information notification service described above displays information such as a telephone number on an information receiving terminal when a call is received from a third party, and determines whether to continue the call according to the displayed number. Is used to determine whether to switch to a call to the interrupted party who has received the call.

[0005] Prior art relating to the information notification service during communication is disclosed in JP-A-8-307914 and JP-A-8-33124.
1, JP-A-9-153936, JP-A-9-233174
And JP-A-10-13524.
In Japanese Patent Application Laid-Open No. Hei 8-307914, a telephone number and a partner name are stored in advance, and when the partner name corresponding to the telephone number of the caller when an incoming call is received by the communicating information notification service is stored, A prior art has been disclosed in which the name of a partner is displayed so that an appropriate process according to the partner can be performed. In Japanese Patent Application Laid-Open No. 8-331241, a telephone number for which interruption is permitted is stored in advance, and it is automatically determined whether or not to perform interruption according to the telephone number of the other party notified by the communicating information notification service. Prior art is disclosed.
Japanese Patent Application Laid-Open No. 9-233174 discloses a prior art in which a telephone number of an interruption partner provided from a communication information notification service is converted into an audio signal and displayed as audio information. Japanese Patent Application Laid-Open No. 9-153936 discloses a prior art in which the telephone number of an interrupting party is stored in a memory, and after the end of a call, a call is made to the other party using the contents stored in the memory. Japanese Patent Application Laid-Open No. Hei 10-13524 discloses a prior art in which a signal component that is heard as a noise sound is cut off by a filter when a communication notification service is received.

In a public telephone line such as NTT, when an incoming call is received during communication, a caller information transmission start signal such as a DTMF signal is transmitted through the line, and the caller information is transmitted to the information receiving terminal by a modem signal or the like. Communication notification service. In each of the above-described prior arts, a telephone connected to a line having such a communication information notification service detects a caller information transmission start signal during communication, sets the telephone to a caller information reception state, and makes a call. After receiving the caller information, it has a function of confirming and storing the caller information.

[0007]

As shown in FIG. 4, information related to a caller is transmitted from a subscriber line exchange as digital information in the form of a modem signal. There is a problem that an unpleasant signal sound is unpleasant. In the prior art of Japanese Patent Application Laid-Open No. 10-13524, a filter is provided to cut off a specific frequency signal. However, a special filter must be provided, which increases the manufacturing cost.

[0008] In addition, when a caller information transmission start signal is detected during communication and the caller information reception state is entered, the receiver information is normally received, or the transmission quality of the caller information from the line. If the caller information cannot be received normally due to poor communication, there is also a problem that the communication state before returning to the caller information is not restored. Also, during communication, various voices and information are sent in addition to the sender information transmission start signal composed of the DTMF signal. Therefore, those voices and information are erroneously detected as the sender information transmission start signal. May be lost. Further, during communication, a caller information transmission start signal is sent from the line regardless of the use state of the telephone, but depending on the use state of the telephone, the caller information is received in the current use state. It may not be possible. In each of the above-mentioned prior arts, nothing is mentioned about the case where there is a failure in the transmission of the sender information transmission signal or the sender information.

[0009] It is an object of the present invention to provide a telephone capable of eliminating obstacles when using the function of the in-call information notification service and more accurately receiving caller information.

[0010]

SUMMARY OF THE INVENTION The present invention relates to a telephone connected to a line providing a communication information notification service for transmitting caller information to a terminal through a line when an incoming call is received from outside the communication partner during communication. , Detecting means for detecting a start signal indicating transmission of caller information during communication, and control means for muting a reception and / or transmission signal from a line when the detection means detects a start signal for transmission of caller information. And a telephone.

According to the present invention, the in-call information notification service sends out caller information to a telephone as a terminal through a line when an incoming call is received from a communication partner during communication. The telephone has detection means for detecting a start signal indicating transmission of caller information during communication, and reception and / or reception from the line when the start signal for transmission of caller information is detected by the detection means.
Or, a control means for muting the transmission signal to cut off or suppress the signal level is included. By muting the reception and / or transmission signal from the line, the sound of the caller information transmitted from the line during reception of the caller information can be prevented from being heard by the telephone, and can be prevented from being harsh. Also, since the transmission signal is muted,
Disturbing sound can be prevented from being transmitted to the other party of the call.

Further, the present invention has a receiving means for receiving the caller information, and the control means, when the detecting means detects the start signal of sending the caller information, causes the receiving means to receive the caller information. If the receiving means does not finish receiving the caller information within a certain time after making the state possible, control is performed to cancel the mute of the reception and / or transmission signal from the line and return to the original communication state. It is characterized by doing.

According to the invention, when the detecting means receives the start signal of the caller information, the control means sets the receiving means for receiving the caller information to a state in which the caller information can be received.
If the receiving means does not finish receiving the caller information within a certain time, control is performed so as to cancel the mute of the reception and / or transmission signal from the line and return to the original communication state. Even in a bad case, it is possible to reliably return to the original communication state after a certain period of time.

Further, the present invention has receiving means for receiving the sender information, and the control means, when the detecting means detects the start signal of sending the sender information, sets the receiving means to receive the sending information. When the receiving means finishes receiving the caller information after the state is enabled, the receiving and / or transmitting signals from the line are muted and the communication is controlled to return to the original communication state. .

According to the present invention, when the detecting means detects the start signal of the sender information transmission, the control means sets the receiving means for receiving the sender information in a state capable of receiving the sender information. When the receiving means finishes receiving the caller information, the control means cancels the mute of the reception and / or transmission signal from the line and controls to return to the original communication state, so that the reception of the caller information ends. By doing so, it is possible to reliably return to the original communication state.

Further, the present invention has a receiving means for receiving the caller information, wherein the control means transmits a start time of the caller information start signal detected by the detecting means,
Only when the time is within a predetermined time range, the receiving means is controlled so as to be able to receive the recipient information.

According to the present invention, the control means sends the receiving means for receiving the sender information only when the sending time interval of the start signal of sending the sender information detected by the detecting means is within a predetermined time range. Is controlled so that user information can be received. If the transmission quality of the sender information is poor, the transmission time of the sender information will be out of the predetermined time range, so it is necessary not to receive the sender information under the condition of poor transmission quality. it can.

Further, the present invention has a receiving means for receiving the sender information, wherein the control means sets a transmission suspension time of the start signal of the sender information detected by the detecting means to a predetermined time range. Only in the case of (1), the receiving means is controlled so as to be able to receive the sender information.

According to the present invention, when the transmission suspension time interval of the transmission start signal of the sender information detected by the detecting means is out of the predetermined time range, the transmission quality of the sender information is poor and the sender information is not normally transmitted. May not be able to receive the caller information. In such a case, it is possible to prevent the caller information from being received.

The present invention further comprises monitoring means for monitoring a state during communication, wherein the control means causes the detection means to output a start signal for transmitting the sender information in accordance with a state during communication monitored by the monitoring means. Or not is controlled.

According to the present invention, the monitoring means monitors the state during communication, and the control means detects the start signal of sender information transmission according to the communication state monitored by the monitoring means. Control whether or not the start signal of the sender information transmission is detected in the communication state where the sender information cannot be received. Even if sent, the current communication state can be maintained.

In the present invention, when it is determined that the communication with the communication partner has priority over the reception of the caller information, the control means does not receive the caller information according to a predetermined standard. It is characterized by controlling.

According to the present invention, when it is determined that the communication with the communication partner has priority over the reception of the caller information, the control means controls so as not to receive the caller information. The current communication state can be maintained even if a caller information transmission start signal is sent.

In the present invention, when it is determined that the reception of the caller information is prioritized over the communication with the communication partner according to a predetermined criterion, the control means stops the communication operation with the communication partner. Then, it is controlled so that the sender information can be received.

According to the present invention, when it is determined that the reception of the caller information is given priority over the communication with the communication partner, the communication operation with the communication partner is stopped and the caller information can be received. , The sender information can be received with a higher probability.

In the present invention, when the detection means detects the start signal of the sender information transmission, the control means suspends the current communication operation so as to be able to receive the sender information, After the reception of the information is completed, control is performed so as to restart the suspended communication operation.

According to the present invention, the current communication operation is interrupted to make the caller information receivable, and the interrupted communication operation is resumed after the caller information is received. Can reliably restart the current communication state.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS. FIG. 1 shows a schematic configuration of a telephone as one embodiment of the present invention. FIG. 2 shows a control procedure during communication when the telephone of FIG. 1 is connected to a line having a communication information notification service for transmitting caller information to a terminal through a line when an incoming call is received during communication. . FIG. 3 shows an example of a transmission time of a caller information transmission start signal transmitted from the line and a transmission time prescribed range time when detecting the caller information transmission start signal.

The telephone line 1 shown in FIG. 1 has a communication information notification service for transmitting caller information to the subscriber terminal through the line when a call is received from a third party while the subscriber's telephone is communicating. The line interface 2 captures /
In addition to controlling the release, a call path is formed with the other party's telephone connected via the captured telephone line 1. The line-handset connection switch 3 is provided to permit or prohibit a communication path from the telephone line 1 to the handset 4. The handset 4 includes a microphone and a speaker for making a call with a telephone at the other end of the telephone line connected by the line interface 2. The hook detection circuit 5 detects an on-hook as a placing operation of the handset 3 and an off-hook as a pick-up operation.

A digital signal processor (hereinafter, referred to as a digital signal processor)
The “DSP” 6 performs digital conversion, compression, and analysis of a voice signal or a modem signal. The DSP 6 operates as a voice recording unit 6a that converts voice coming from the telephone line 1 into a digital signal according to a preset program. Also, it operates as an audio reproducing unit 6b that converts an audio signal stored as a digital signal into an analog signal and sends it out to the telephone line 1 as audio. Further, it performs a digital conversion and analysis of a caller information signal arriving from the telephone line 1, and also operates as a caller information receiving unit 6c for receiving caller information. DSP 6 is a voice recording unit 6
a, the state of operating as the voice reproducing unit 6b or the sender information receiving unit 6c is switched by an equivalent switch 6d realized by a program.

The sender information transmission start signal detecting circuit 7 detects a sender information transmission start signal arriving from the telephone line 1 by a DTMF signal. The dial transmission circuit 8 transmits a dial signal for calling a destination to a dial pulse or DT.
The signal is converted into an MF signal and output from the line interface 2 to the telephone line 1. The incoming signal detection circuit 9 detects an incoming signal coming from the telephone line 1. When the incoming signal detection circuit 9 detects the incoming signal, the speaker 10 emits the incoming portion to the outside as an acoustic output. The voice storage unit 11 stores the DS
In accordance with the request from P6, the audio signal of the digital signal output from the audio recording unit 6a is stored. The audio signal of the digital signal stored in the audio storage unit 11 is
b can also be read.

The main control unit 12 includes a microcomputer and a memory for storing its program, and controls each unit of the telephone shown in FIG. Main control unit 12 is realized by, for example, a one-chip microcomputer, and includes a timer for counting the time during which the caller information is being received.
The main control unit 12 is provided with an input signal corresponding to the operation content from an operation input unit 13 such as a numeric keypad for inputting a telephone number. The main control unit 12 includes a storage unit 14 for storing received recipient information and a display unit 1 for displaying received sender information.
5 etc. are also provided. The voice storage unit 11 and the storage unit 14
Information is stored in a semiconductor memory or the like. The display unit 15
Information is displayed using a liquid crystal display (LCD) or the like.

FIG. 2 shows an operation performed by the telephone of FIG. 1 during communication. In step a1, telephone line capture based on off-hook detection is performed. First, the pick-up operation of the handset 4 is monitored by the hook detection circuit 5. When an off-hook is detected, the main controller 12 controls the line interface 2 based on the detection of the off-hook, and captures the telephone line 1.
If the telephone line cannot be captured, it means that there is some trouble on the line side, and the line capturing operation ends.

When the telephone line 1 is captured in step a1, communication with the communication partner via the telephone line 1 is performed. The state during communication is monitored by the main control unit 12. In step a2, the main control unit 12 determines whether or not the communication state is a state in which reception of caller information is permitted. If not, the process returns to step a1. The state in which the reception of the caller information is not permitted is, for example, a state in which an outside line is held, and a preset hold melody is transmitted via the line interface 2 to the caller information receiving circuit 6 or the caller information transmission start signal detecting circuit. 7, the possibility of erroneously detecting caller information is high. If another signal for downloading specific data is transmitted from the communication destination via the telephone line 1,
Also in this case, the sender information may be erroneously detected. In these states, the main control unit 12 determines that it is preferable to prohibit the reception of the caller information and maintain the current communication state preferentially, and returns to step a1. If it is determined that the caller information reception is permitted, the process proceeds to step a3.

In step a3, the caller information transmission start signal detection circuit 7 monitors the arrival of the caller information transmission start signal transmitted as the information receiving terminal start-up sound shown in FIG. I do. If the caller information transmission start signal is not detected, the process proceeds to step a1, and if detected, the process proceeds to step a4.

In step a4, it is determined whether the transmission time of the detected sender information transmission start signal is a prescribed time. The sender information transmission start signal is transmitted as a DTMF signal. D of the transmitted sender information transmission start signal
It is assumed that the TMF pattern conforms to, for example, a standard as shown in FIG. According to the standard of the DTMF pattern shown in FIG.
It is defined that the MF signal transmission time or the DTMF signal transmission suspension time is made valid. The main controller 12 receives the received D
If the TMF pattern is within the range of FIG. 3B, it is determined that the TMF pattern is within the specified time range. When it is determined that it is within the specified time range, the process proceeds to step a5, and when it is out of the range, it is determined that the signal is not the caller information transmission start signal, and the process proceeds to step a1.

In step a5 of FIG. 2, the main control unit 12 monitors the state of communication again in response to the determination that the sender information transmission start signal has been detected. Main controller 12
Determines whether it is necessary to stop the operation in the current state in order to receive the caller information. For example, if an outside line call is being recorded, the voice recording unit 6a of the DSP 6 is activated, and a signal from the telephone line 1 is being stored in the voice storage unit 11. In such an operation state, the switch 6d
Cannot be switched to activate the sender information receiving unit 6c. Therefore, it is determined that it is impossible to receive the caller information during the outside line call recording. However,
When the operation of the voice recording unit 6a of the DSP 6 is stopped and the recording of the outside call is terminated, the caller information receiving unit 6c of the DSP 6 can be activated, and the caller information can be received. As described above, if it is necessary to stop the operation in the current state in order to receive the caller information, the process proceeds to step a6. If the caller information can be received in the current state, the process proceeds to step a7. Move to In step a6, the operation in the current state is stopped, and the state shifts to step a7 in a state where the sender information can be received. For example, if an external call is being recorded, line interface 2 and DSP
Then, the connection with the voice recording unit 6a is terminated, and a normal outside line communication state is set.

In step a7, the main control unit 12
The caller information receiving unit 6c of FIG. 6 is activated to be able to receive the caller information, and the line-handset connection switch 3 is disconnected. 4 to perform a mute operation for cutting off the audio signal that has arrived. With such a mute operation, the sound at the time of receiving the caller information is prevented from being heard from the speaker of the handset 4, and the process proceeds to step a8. In step a8, the caller information receiving timer provided in the main control unit 12 is reset, and the process proceeds to step a9.

At step a9, the caller information receiving section 6 of the DSP 6 from the telephone line 1 via the line interface 2
The main control unit 12 determines whether or not c has received the caller information. If the caller information has been received, step a1
Move to 0. In step a10, the received caller information is stored in the storage unit 14 and the caller information is displayed on the display unit 15. In step a11, the main control unit 12 counts the timer for receiving caller information, and the process proceeds to step a12. In step a12, the main control unit 12 determines whether or not the time during which the caller information is being received has exceeded the time during which the caller information is permitted to be received. It moves to a9.

After the storage and display of the caller information are completed in step a10, or when it is determined in step a12 that the time for permitting the reception of the caller information has been exceeded, the process proceeds to step a13. In step a13,
The main control unit 12 stops the activation of the caller information receiving unit 6c of the DSP 6, terminates the reception of the caller information, connects the line-handset connection switch 3, releases the mute, and talks with the telephone line 1. Return to a state where it is possible. When the switch connection in step a13 is completed, step a14
Move on to In step a14, the main control unit 12 determines whether or not the operation before receiving the caller information has been terminated in step a6 in order to receive the caller information. If there is no operation completed before the reception of the sender information, the operation as a whole ends. In step a15, the operation completed before the reception of the caller information is restarted, and the overall operation ends. For example, if the outside-line call recording is terminated before the caller information is received, the voice recording unit 6a of the DSP 6 is activated again to return to the outside-line call recording state.

In the above description, the receiving mute for disconnecting the line-handset connection switch 3 is performed in order to prevent the receiving user from hearing annoying sounds. The transmitted voice or the like returns to its own terminal by echoes from the telephone line 1 and the line interface 2 and becomes noise with respect to the caller information signal, so that the transmitted voice can be muted so as not to make the information erroneous. Further, it is not necessary to completely cut off the signal to cancel the muting, and control to give a sufficient amount of attenuation may be performed. For example, it may be a means for notifying that the caller information is coming by letting the user hear it with a minute sound.

[0042]

As described above, according to the present invention, when a caller information transmission start signal is sent from the line, the reception and / or transmission signal from the line is muted, so that the caller information is transmitted. The harsh sound of the representing modem signal can be prevented from being heard.

Further, according to the present invention, after detecting the start signal of sending the caller information sent from the line, if the receiving means does not finish receiving the caller information within a predetermined time, it is possible to receive and / or receive the call from the line. Alternatively, since the mute of the transmission signal is canceled to return to the original communication state, it is possible to reliably return to the original communication state even when reception of the caller information cannot be completed due to deterioration of transmission quality or the like.

Further, according to the present invention, after detecting the start signal of sending the caller information sent from the line, the caller information is received, and when the reception of the caller information is completed, the original communication state is ensured. Can be returned to.

According to the present invention, when the transmission time of the start signal of transmission of sender information detected by the detection means is within a predetermined time range, the receiving means is controlled so as to receive the sender information. It is possible to receive caller information with good quality.

According to the present invention, the sender information is received only when the transmission pause time interval of the start signal of the sender information detected by the detecting means is within a predetermined time range. Can be received only when it is assumed that the transmission quality is good.

Further, according to the present invention, whether or not to detect the start signal of the sender information transmission is controlled in accordance with the state of communication, so that the sender information is transmitted in a communication state inconvenient for receiving the sender information. Detection of the information transmission start signal and reception of the sender information can be prevented.

According to the present invention, when the communication with the communication partner is given priority over the reception of the caller information, the caller information is not received. Even if a transmission start signal is given, communication with the communication partner can be continued as it is.

According to the present invention, even in a communication state in which caller information cannot be received, if it is determined that reception of the caller information is prioritized, the operation in the current communication state is stopped. Since the caller information can be received, the caller information can be received with a higher probability.

Further, according to the present invention, when a start signal for transmitting the sender information is detected, the current communication operation is stopped, the sender information is received, and the stopped communication operation is resumed after the reception of the sender information. Therefore, it is possible to reliably receive the caller information and to surely resume the suspended communication state.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic electrical configuration of a telephone according to an embodiment of the present invention.

FIG. 2 is a flowchart showing an operation when an incoming call is received during communication with the telephone of FIG. 1;

FIG. 3 is a diagram showing an example of a DTMF pattern of a caller information transmission start signal transmitted from the telephone line 1 of FIG. 1 by the communicating information notification service and an example of a specified time range when detecting the signal.

FIG. 4 is a diagram showing a signal transmission procedure in a communication information notification service provided by NTT.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Telephone line 2 Line interface 3 Line-handset connection switch 4 Handset 5 Hook detection circuit 6 DSP 6a Voice recording unit 6c Sender information reception unit 7 Sender information transmission start signal detection circuit 9 Incoming signal detection circuit 11 Voice storage unit 12 Main Control unit 13 Operation input unit 14 Storage unit 15 Display unit

Claims (9)

[Claims] 1. A telephone connected to a line providing a communication information notification service for transmitting caller information to a terminal through a line when an incoming call is received from a communication partner during communication. Telephone comprising: detecting means for detecting a start signal indicating transmission; and control means for muting a reception and / or transmission signal from a line when the detection means detects a start signal for transmission of caller information. . 2. A receiving means for receiving the caller information, wherein the control means is capable of receiving the caller information when the detecting means detects the start signal of sending the caller information. If the receiving means does not finish receiving the caller information within a predetermined time after the state, the receiving and / or transmitting signal from the line is unmuted, and control is performed so as to return to the original communication state. The telephone according to claim 1, wherein 3. A receiving means for receiving the caller information, wherein the control means sets the receiving means to be able to receive the call information when the detecting means detects the start signal for sending the caller information. 2. The method according to claim 1, wherein when the receiving means finishes receiving the caller information, the receiving and / or transmitting signal from the line is unmuted to return to the original communication state. The described telephone. 4. A receiving means for receiving the caller information, wherein the control means only transmits when a transmission time of a start signal of the caller information detected by the detecting means is within a predetermined time range. 2. The telephone according to claim 1, wherein the receiving means controls the receiving means so that the receiving information can be received. 5. A receiving means for receiving the caller information, wherein the control means detects that the transmission suspension time of the start signal of the caller information detected by the detecting means is within a predetermined time range. 2. The method according to claim 1, wherein the receiving means controls only the receiving means to be able to receive the sender information.
The described telephone. 6. A monitoring unit for monitoring a state during communication, wherein the control unit detects detection of a start signal of transmission of the sender information in accordance with a state of communication monitored by the monitoring unit. 2. The method according to claim 1, wherein whether to perform the control is controlled.
The described telephone. 7. The control means controls not to receive the caller information when it is determined that the communication with the communication partner has priority over the reception of the caller information according to a predetermined standard. The telephone according to claim 1, wherein: 8. The control unit, according to a predetermined criterion, suspends a communication operation with a communication partner when it is determined that reception of the caller information is prioritized over communication with the communication partner. 2. The telephone according to claim 1, wherein the telephone is controlled to be able to receive caller information. 9. The control means, when the detection means detects the start signal of transmission of the caller information, suspends a current communication operation to enable reception of the caller information, 2. The telephone according to claim 1, wherein after the reception is completed, control is performed so as to restart the interrupted communication operation.