CN111601001A - Telephone number storage method, call equipment and call system - Google Patents
Telephone number storage method, call equipment and call system Download PDFInfo
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- CN111601001A CN111601001A CN202010432089.4A CN202010432089A CN111601001A CN 111601001 A CN111601001 A CN 111601001A CN 202010432089 A CN202010432089 A CN 202010432089A CN 111601001 A CN111601001 A CN 111601001A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/436—Arrangements for screening incoming calls, i.e. evaluating the characteristics of a call before deciding whether to answer it
- H04M3/4365—Arrangements for screening incoming calls, i.e. evaluating the characteristics of a call before deciding whether to answer it based on information specified by the calling party, e.g. priority or subject
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/57—Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/03—Protecting confidentiality, e.g. by encryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/10—Integrity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/60—Context-dependent security
- H04W12/61—Time-dependent
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2203/00—Aspects of automatic or semi-automatic exchanges
- H04M2203/60—Aspects of automatic or semi-automatic exchanges related to security aspects in telephonic communication systems
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Abstract
The invention discloses a telephone number storage method, a call method, call equipment and a call system. The harassment call prevention method comprises the following steps: s1, the calling device sends a call request containing the first leave-on code to the call transfer station; s2, the transfer station receives the call request and then verifies the validity of the first reserved code, when the call request passes through, the transfer station calls and transmits the first reserved code to the called device, the step S3 is entered, and when the call request does not pass through, the transfer station refutes the call request of the calling device and ends; and S3, the called device decrypts the first retention code and displays the retention request information contained in the first retention code, and the user of the called device can select to switch on or reject according to the retention request information. Invalid calls can be effectively eliminated through the validity verification of the transfer station on the first reserved codes; the called device can display the reserved request information when the call is coming, so that the called can conveniently make a reasonable answer or rejection decision according to the self requirement, and the probability of answering a harassing call is reduced.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a telephone number retention method, a call device, and a call system.
Background
Many places or services now require the persistence of communication means, such as amusement rides, intermediary structures (e.g., building venues), institutional office facilities, educational training facilities, take-away services, courier delivery, and the like. People usually adopt a mode of directly reserving telephone numbers for the other party, so that the telephone numbers are easy to leak and sell, a plurality of 'harassing' calls and the like can be received, and life and work are influenced.
In the prior art, a method of people 'marking' is generally adopted, people are required to mark whether a calling number is a harassing call, and a called number judges whether to answer according to the marks of people, so that the following problems exist: firstly, for telephone numbers which are not marked as harassments by others, harassment calls are not displayed, and a called party is uncertain whether the telephone numbers should be answered or not; secondly, the called party can not be marked and answered according to individual requirements, for example, when the called party needs to know the market quotas through the intermediary within a certain period of time, the called party is subjectively willing to answer intermediary telephones which can be marked as harassment, and the telephones are not harassment telephones for the called party; thirdly, the called person cannot know the identity of the calling person and the way for the calling person to acquire the telephone number of the called person, and the called person cannot know the leakage path of the telephone number of the called person.
Disclosure of Invention
The invention aims to at least solve the technical problems in the prior art, and particularly innovatively provides a telephone number storage method, a call method, call equipment and a call system.
In order to achieve the above object of the present invention, according to a first aspect of the present invention, there is provided a telephone number persistence method comprising: the method comprises the steps of obtaining a retention key, encrypting a telephone number to be retained and retention request information together by using the retention key through an encryption algorithm to generate a retention code, sending the retention code and the retention key to a call transfer station, and sending the retention code to call equipment of a retention request party.
The beneficial effects of the above technical scheme are: the traditional mode of keeping the telephone number is changed, so that the telephone number is hidden and cannot be obtained by the outside in a direct view manner, and the leakage risk is reduced; the telephone number and the retention request information are encrypted together to generate a retention code, the origin of the retention code is bound, and a called party can know the retention origin and make a reasonable answering or refusing decision even if the retention code leaks; the secret key is only held by the user and the call transfer station, so that the reserved code cannot be changed at will by the outside, the confidentiality is enhanced, and the harassing call prevention effect is good.
In a preferred embodiment of the present invention, the retention code is a secret code generated after the encryption process or a two-dimensional code generated by the secret code generated after the encryption process.
The beneficial effects of the above technical scheme are: the two-dimensional code mode is convenient to use, and the secret code mode is relatively difficult to leak due to the fact that diffusion is unchanged.
In a preferred embodiment of the present invention, the retention request information includes a name of the retention requester, a phone number of the retention requester, a location of the retention, a time of the retention, a reason of the retention, a period of the retention validity, and a key of the retention.
The beneficial effects of the above technical scheme are: such information can facilitate the called party to have a thorough understanding of the particular root cause.
In order to achieve the above object, according to a second aspect of the present invention, there is provided an anti-harassment call method comprising: step S1, the calling communication equipment stores the retention code generated by the called communication equipment, and the retention code is recorded as a first retention code; the calling call equipment sends a call request containing a first reserved code to the call transfer station; step S2, the call transfer station receives the call request and then carries out validity verification on the first retention code, when the validity verification passes, the call transfer station calls and transmits the first retention code to the called call equipment, step S3 is carried out, when the validity verification fails, the call transfer station refutes the call request of the calling call equipment, and the process is finished; and step S3, the called communication equipment decrypts the first retention code and displays the retention request information contained in the first retention code, and the user of the called communication equipment can select to switch on or reject according to the retention request information.
The beneficial effects of the above technical scheme are: only after the validity of the first reserved code is verified by the call transfer station, the call transfer station calls the called call equipment, and in the process, invalid calls can be effectively eliminated, so that the occurrence probability of harassing calls is reduced; the reserved request information can be displayed when a call is received from the called communication equipment terminal, a called person can know the identity of a calling party, the reserved source, the affairs mainly related to the call and the like from the reserved request information, the called person can conveniently make a reasonable answer or reject decision according to the self requirement, the user experience is improved, whether the call is a harassing call or not is set and judged in an individualized mode according to the requirement of the called person instead of the traditional crowdsourcing, and the probability of answering the harassing call is reduced.
In a preferred embodiment of the present invention, in the step S2, the process of verifying the validity of the first leave-on code by the call transfer station includes an integrity verification step, or includes an integrity verification step and a validity period verification step; the integrity verifying step includes: judging whether a second retention code with the content consistent with the first retention code exists in the call transfer station, if the second retention code exists, considering that the first retention code is complete, and the integrity verification step is passed, and if the second retention code does not exist, considering that the first retention code is incomplete, and the integrity verification step is not passed; the valid period verifying step includes: and judging whether the call request occurrence time is within the preservation validity period of the first preservation code, if so, verifying the validity period to be passed, and if not, verifying the validity period to be failed.
The beneficial effects of the above technical scheme are: the integrity verification step can effectively intercept nuisance calls of which the first retention code is maliciously tampered, and the validity period verification step can intercept nuisance calls which are not needed by the called person and are beyond the validity period.
In a preferred embodiment of the present invention, in step S3, a reject button is set on a display interface of the called call device, and after the user operates the reject button, the call transfer station deletes the second leave-on code stored on the call transfer station and corresponding to the content of the first leave-on code.
The beneficial effects of the above technical scheme are: the called person can initiatively disable the first reserved code even if the called person does not need a certain type of telephone (such as a building telephone) in the validity period, so that the called person can effectively intercept the type of telephone, and the calling method is more personalized and has initiative.
In order to achieve the above object, according to a third aspect of the present invention, the present invention provides a calling communication device, where the calling communication device stores a leave-on code generated by a called communication device, and the leave-on code is recorded as a first leave-on code; the calling call equipment sends a call request containing a first reserved code to a call transfer station; and after receiving the call request, the call transfer station verifies the validity of the first reserved code: when the validity is verified, the call transfer station calls and transmits the first retention code to the called call equipment, the called call equipment decrypts the first retention code and displays retention request information contained in the first retention code, and a user of the called call equipment can select to connect or reject according to the retention request information; and when the validity verification fails, the call transfer station rejects the call request of the calling call equipment.
The beneficial effects of the above technical scheme are: the calling communication equipment calls the called communication equipment by depending on the first reserved code, and the calling communication equipment user can know the answering intention of the called party through the verification of the call transfer station and the answering selection of the called communication equipment user later, so that invalid telephone sales promotion can be reduced, and labor is saved.
In order to achieve the above object, according to a fourth aspect of the present invention, the present invention provides a called party call device, where the called party call device obtains a reserved key, encrypts a phone number to be reserved and reservation request information together by using the reserved key through an encryption algorithm to generate a reserved code, sends the reserved code and the reserved key to a call transfer station, and sends the reserved code to a call device of a reservation request party; the calling communication equipment stores a retention code generated by the called communication equipment and records the retention code as a first retention code; the calling call equipment sends a call request containing a first reserved code to the call transfer station; and after receiving the call request, the call transfer station verifies the validity of the first reserved code: when the validity is verified, the call transfer station calls and transmits the first retention code to the called call equipment, the called call equipment decrypts the first retention code and displays retention request information contained in the first retention code, and a user of the called call equipment can select connection or rejection according to the retention request information; and when the validity verification fails, the call transfer station rejects the call request of the calling call equipment.
The beneficial effects of the above technical scheme are: the called call equipment can eliminate invalid calls through validity verification of the first reserved code by the call transfer station, so that the occurrence probability of harassing calls is reduced; meanwhile, the reserved request information can be displayed when a call is incoming, a called party can know the identity of a calling party, the reserved source, the affairs mainly related to the call and the like from the reserved request information, so that a called call equipment user can conveniently make a reasonable answer or reject decision according to the self requirement, the user experience is improved, whether the call is a harassing call or not is set and judged in a personalized mode according to the requirement of called call equipment instead of the traditional crowdsourcing, and the probability of answering the harassing call is reduced.
In order to achieve the above object, according to a fifth aspect of the present invention, the present invention provides a call system, including the calling call device, the called call device, and one or more call transfer stations, where when there is one call transfer station, the call transfer station is respectively connected to the calling call device and the called call device, and when there is more than one call transfer station, the calling call device, and the called call device form a communication link, and the calling call device and the called call device are respectively nodes at two ends of the communication link.
The beneficial effects of the above technical scheme are: the invention has the advantages of the calling communication equipment and the called communication equipment.
Drawings
FIG. 1 is a schematic diagram of an input interface for pre-storing request information according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating a pre-stored code generation process according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating sending pre-stored codes to a call forwarding station according to an embodiment of the invention;
FIG. 4 is a flow chart illustrating a communication method according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a caller id display interface of a called party device in a communication method according to an embodiment of the present invention;
fig. 6 is a schematic flow chart of the call method in an application scenario.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The invention discloses a telephone number retention method, which comprises the following steps: and acquiring a retention key, encrypting the telephone number to be retained and the retention request information together by using the retention key through an encryption algorithm to generate a retention code, sending the retention code and the retention key to a call transfer station, and sending the retention code to the call equipment of the retention request party as shown in fig. 3.
In the present embodiment, it is preferable that the retention request information includes a name of the retention requester, a telephone number of the retention requester, a location of retention, a time of retention, a reason of retention, a period of validity of retention, and a key of retention. Preferably, a program is provided on the survivor call device, which executes the steps of the telephone number persistence method, the program being provided with a user interface as shown in fig. 1, on which a user can input persistence request information.
In the present embodiment, the key acquisition method is preferably, but not limited to, a character string set randomly for the user, or generated by a random number generator loaded on the transferee communication device. The call transfer station is preferably, but not limited to, a base station of an operator, such as a BTS base station.
In the present embodiment, the retention code EPN is preferably a secret code generated after the encryption process or a two-dimensional code generated from a secret code generated after the encryption process. The encryption algorithm is preferably, but not limited to, an AES encryption algorithm, a DES encryption algorithm, or a 3DES encryption algorithm. Fig. 2 shows a specific encryption and a process of generating the persistence code EPN, which take DES encryption algorithm as an example, specifically: the reserved request information is sequentially synthesized, each field content is separated by using a separator (/ #/#) during synthesis, and then the DES encrypted text content in the figure 2 is spliced and synthesized; encrypting the DES encrypted text content using a DES encryption algorithm, plus a reserved persistence key (EK in FIG. 2), thereby generating a secret code; and finally, directly outputting the secret code according to the requirement, or converting the secret code into a two-dimensional code for outputting. Further preferably, the call device of the retention party preferably but not limited to wirelessly transmit the retention code to the call device of the retention request party, or the call device of the retention request party takes a picture of the two-dimensional code for retention.
The invention also discloses a method for preventing harassment call, in a preferred embodiment, the flow diagram is shown in fig. 4, and the method comprises the following steps:
step S1, the calling communication equipment stores the retention code generated by the called communication equipment, and the retention code is recorded as a first retention code; the calling call equipment sends a call request containing the first reserved code to the call transfer station. The first leave-on code stored by the calling telephony device is preferably, but not limited to, obtained directly from the called telephony device or, alternatively, by a third party. Preferably, a call request program is provided on the calling call device, the call request program executes a step of sending a call request including a first reserved code to the call transfer station, and the specific execution action of the program may be loading the reserved code in the form of a secret code or scanning the reserved code in the form of a two-dimensional code to initiate the call request.
And step S2, the call transfer station receives the call request and then carries out validity verification on the first retention code, when the validity verification is passed, the call transfer station calls and transmits the first retention code to the called call equipment, the step S3 is entered, and when the validity verification is not passed, the call transfer station refutes the call request of the calling call equipment and ends.
And step S3, the called communication equipment decrypts the first retention code and displays the retention request information contained in the first retention code, and the user of the called communication equipment can select to switch on or reject according to the retention request information. Preferably, an interface as shown in fig. 5 is displayed on the called call device, and the interface includes the retention request information.
In this embodiment, preferably, when there are multiple call transfer stations in the call link between the called call device and the calling call device, the step S2 is executed by a call transfer station of an operator to which the called call device belongs, for example, the called call device is a connected terminal, the calling call device is a telecommunication terminal, and the call link at least includes a connected call transfer station (such as a connected base station) and a connected call transfer station (such as a telecommunication base station), and then the connected call transfer station executes the step S2.
In a preferred embodiment, in step S2, the process of verifying the validity of the first leave-on code by the call transfer station includes an integrity verification step, or includes an integrity verification step and a validity period verification step; when the process of validity verification includes an integrity verification step and a validity period verification step, both steps pass to be considered as when the validity verification passes. The integrity verification step comprises: and judging whether a second retention code with the content consistent with the first retention code exists in the call transfer station, if the second retention code exists, considering that the first retention code is complete, and the integrity verification step is passed, and if the second retention code does not exist, considering that the first retention code is incomplete, and the integrity verification step is not passed. The valid period verifying step comprises: the call transfer station decrypts the first reserved code by using the secret key, judges whether the call request occurrence time is within the reserved validity period of the first reserved code according to the reserved time and the validity period in the reserved request information in the reserved code, verifies the validity period if the call request occurrence time is within the reserved validity period, and verifies the validity period if the call request occurrence time is not within the reserved validity period.
In a preferred embodiment, in step S3, as shown in fig. 5, a rejection button (such as the rejection button in fig. 5) is set on the display interface of the called call device, and after the user operates the rejection button, the call transfer station deletes the second leave-on code stored on the call transfer station, which is consistent with the content of the first leave-on code. If the called party chooses to "reject such calls", as shown in fig. 5, then the retention code EPN will be automatically rejected at a later date, regardless of who owns it, which is more secure.
In an application scenario of the call method of the present invention, a call flow chart is shown in fig. 6, in the application scenario, a dialer sends a call request to a base station of an operator through an owned EPN, the base station of the operator performs integrity verification and validity period verification on the EPN of the dialer, when both verifications are passed, the dialer calls a callee, and the callee determines, through displayed request information, that the dialer rejects the call or does not restrict the call. And rejecting the call request when the integrity verification fails, and rejecting the call request when the validity period verification fails.
The invention also discloses calling communication equipment, in a preferred embodiment, the calling communication equipment stores a retention code generated by the called communication equipment, and the retention code is recorded as a first retention code; the calling call equipment sends a call request containing a first reserved code to the call transfer station; and after receiving the call request, the call transfer station verifies the validity of the first reserved code: when the validity is verified, the call transfer station calls and transmits the first retention code to the called call equipment, the called call equipment decrypts the first retention code and displays retention request information contained in the first retention code, and a user of the called call equipment can select to connect or reject according to the retention request information; and when the validity verification fails, the call transfer station rejects the call request of the calling call equipment.
The invention also discloses called communication equipment, in a preferred embodiment, the called communication equipment acquires the retention key, encrypts the telephone number to be retained and the retention request information together by using the retention key through an encryption algorithm to generate retention codes, sends the retention codes and the retention key to a communication transfer station, and sends the retention codes to the communication equipment of the retention request party; the calling communication equipment stores a retention code generated by the called communication equipment and is marked as a first retention code; the calling call equipment sends a call request containing a first reserved code to the call transfer station; and after receiving the call request, the call transfer station verifies the validity of the first reserved code: when the validity is verified, the call transfer station calls and transmits the first retention code to the called call equipment, the called call equipment decrypts the first retention code and displays retention request information contained in the first retention code, and a user of the called call equipment can select to connect or reject according to the retention request information; and when the validity verification fails, the call transfer station rejects the call request of the calling call equipment.
In this embodiment, preferably, a rejection button is set on a display interface of the called call device, and after the user operates the rejection button, the call transfer station deletes the second leave-on code stored on the call transfer station and having the same content as the first leave-on code.
The invention also discloses a call system, which comprises the calling call equipment, the called call equipment and one or more call transfer stations in a preferred embodiment, wherein when the number of the call transfer stations is one, the call transfer stations are respectively connected with the calling call equipment and the called call equipment, when the number of the call transfer stations is more than one, the call transfer stations, the calling call equipment and the called call equipment form a communication link, and the calling call equipment and the called call equipment are respectively nodes at two ends of the communication link.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A method for telephone number persistence, comprising:
the method comprises the steps of obtaining a retention key, encrypting a telephone number to be retained and retention request information together by using the retention key through an encryption algorithm to generate a retention code, sending the retention code and the retention key to a call transfer station, and sending the retention code to call equipment of a retention request party.
2. A telephone number persistence method as claimed in claim 1 wherein the persistence code is a secret code generated after encryption or a two-dimensional code generated from a secret code generated after encryption.
3. The telephone number persistence method of claim 1 or 2, wherein the persistence request information includes a name of the persistence requester, a telephone number of the persistence requester, a place of the persistence, a time of the persistence, a reason for the persistence, a validity period of the persistence, and a persistence key.
4. An anti-harassment call method, comprising:
step S1, the calling communication equipment stores the retention code generated by the called communication equipment, and the retention code is recorded as a first retention code; the calling call equipment sends a call request containing a first reserved code to the call transfer station;
step S2, the call transfer station receives the call request and then carries out validity verification on the first retention code, when the validity verification passes, the call transfer station calls and transmits the first retention code to the called call equipment, step S3 is carried out, when the validity verification fails, the call transfer station refutes the call request of the calling call equipment, and the process is finished;
and step S3, the called communication equipment decrypts the first retention code and displays the retention request information contained in the first retention code, and the user of the called communication equipment can select to switch on or reject according to the retention request information.
5. The method according to claim 4, wherein in step S2, the process of verifying the validity of the first reserved code by the call transfer station includes an integrity verification step, or includes an integrity verification step and a validity period verification step;
the integrity verifying step includes: judging whether a second retention code with the content consistent with the first retention code exists in the call transfer station, if the second retention code exists, considering that the first retention code is complete, and the integrity verification step is passed, and if the second retention code does not exist, considering that the first retention code is incomplete, and the integrity verification step is not passed;
the valid period verifying step includes: and judging whether the call request occurrence time is within the preservation validity period of the first preservation code, if so, verifying the validity period to be passed, and if not, verifying the validity period to be failed.
6. A harassment call prevention method according to claim 4 or 5, characterized in that in said step S3, a rejection button is set on a display interface of the called call device, and after the user operates said rejection button, the call transfer station deletes the second leave-on code stored on the call transfer station in accordance with the content of the first leave-on code.
7. The calling communication equipment is characterized in that the calling communication equipment stores a retention code generated by called communication equipment and is marked as a first retention code; the calling call equipment sends a call request containing a first reserved code to a call transfer station;
and after receiving the call request, the call transfer station verifies the validity of the first reserved code:
when the validity is verified, the call transfer station calls and transmits the first retention code to the called call equipment, the called call equipment decrypts the first retention code and displays retention request information contained in the first retention code, and a user of the called call equipment can select to connect or reject according to the retention request information;
and when the validity verification fails, the call transfer station rejects the call request of the calling call equipment.
8. The called call equipment is characterized in that the called call equipment acquires a retention key, encrypts a telephone number to be retained and retention request information together by using the retention key through an encryption algorithm to generate a retention code, sends the retention code and the retention key to a call transfer station, and sends the retention code to call equipment of a retention request party;
the calling communication equipment stores a retention code generated by the called communication equipment and records the retention code as a first retention code; the calling call equipment sends a call request containing a first reserved code to the call transfer station; and after receiving the call request, the call transfer station verifies the validity of the first reserved code:
when the validity is verified, the call transfer station calls and transmits the first retention code to the called call equipment, the called call equipment decrypts the first retention code and displays retention request information contained in the first retention code, and a user of the called call equipment can select connection or rejection according to the retention request information;
and when the validity verification fails, the call transfer station rejects the call request of the calling call equipment.
9. A communication system, comprising the calling communication device of claim 7, the called communication device of claim 8, and one or more communication transfer stations, wherein when the number of the communication transfer stations is one, the communication transfer stations are respectively connected with the calling communication device and the called communication device, and when the number of the communication transfer stations is more than one, the communication transfer stations, the calling communication device and the called communication device form a communication link, and the calling communication device and the called communication device are respectively nodes at two ends of the communication link.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010432089.4A CN111601001A (en) | 2020-05-20 | 2020-05-20 | Telephone number storage method, call equipment and call system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010432089.4A CN111601001A (en) | 2020-05-20 | 2020-05-20 | Telephone number storage method, call equipment and call system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113993126A (en) * | 2021-10-27 | 2022-01-28 | 微位（深圳）网络科技有限公司 | Method, device, equipment and storage medium for pulling up called terminal interface |
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