# US 9,521,251 B2 · Method and device for identifying telephone call

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- Number: US 9,521,251 B2
- Document ID: US9521251B2
- Status: Granted
- Kind: B2
- Application number: 14/610,293
- Filed: 2015-01-30
- Published: 2016-01-21
- Granted: 2016-12-13
- Earliest claimed: 2014-07-21
- Assignees: Xiaomi Inc.
- Applicants: Xiaomi Inc.
- Inventors: Yuxiang Liu; Zhiyong Bai; Zhongliang Qiao; Botian Wang
- Web page: https://patentgrep.com/patent/US9521251B2

## CPC

- H04M 3/42042: {Notifying the called party of information on the calling party (details within substation equipment H04M1/57, signalling details H04Q3/72)}
- H04M 1/575: {Means for retrieving and displaying personal data about calling party}
- H04W 4/12: Messaging; Mailboxes; Announcements
- H04M 1/57: Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set (at the operator set in a manual exchange H04M5/20)
- H04M 1/663: Preventing unauthorised calls to a telephone set
- H04M 3/436: Arrangements for screening incoming calls {, i.e. evaluating the characteristics of a call before deciding whether to answer it (based on the calling party profile H04M3/42059; based on location H04M3/42348; based on presence H04M3/42365; diversion H04M3/54)}
- H04M 2203/6027: Fraud preventions
- H04M 2203/6045: Identity confirmation
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

The present disclosure relates to a method and a device for identifying a telephone call. The method includes: determining whether a second telephone of an assigned entity, which entity a telephone number of a caller is affiliated with, is calling a telephone number of a first telephone, when the caller is calling the telephone number of the first telephone, wherein the telephone number of the second telephone is the telephone number used by the caller; when the second telephone is not calling the telephone number of the first telephone, outputting prompt information, wherein the prompt information is for indicating that the telephone call from the caller is a number-falsified telephone call. The present invention may correctly identify whether a telephone call is a number-falsified telephone call.

## Claims

### Claim 1

A device, comprising:
a processor-readable non-transitory storage medium storing a set of instructions for identifying an incoming telephone call; and
a processor in communication with the storage medium,
wherein when a first telephone affiliated with a first telephone number receives an incoming telephone call from a second telephone number, the processor executes the set of instructions to:
determine whether a second telephone affiliated with the second phone number is in fact currently calling the first telephone number based on both the first telephone number and the second telephone number; and
when the second telephone is not calling the first telephone number, output information indicating that the incoming telephone call is a number-falsified telephone call.

### Claim 2 (depends on 1)

The device according to claim 1, wherein the device is a cloud server.

### Claim 3 (depends on 1)

The device according to claim 1, wherein the device is a server connecting to the first telephone to provide a service of identifying a telephone call.

### Claim 4 (depends on 1)

The device according to claim 1, wherein the processor further executes the set of instructions to:
obtain the first phone number;
send the second phone number and the first phone number to a server associated with the second telephone to determine whether the second telephone is in fact calling the first phone number; and
receive from the server a result as to whether the second telephone is calling the first phone number.

### Claim 5 (depends on 1)

The device according to claim 1, wherein the processor further executes the set of instructions to:
determine whether the second phone number is a telephone number stored in a contact list of the first telephone; and
determine that the incoming telephone call is not a number-falsified telephone call when the second phone number is a telephone number stored in the contact list of the first telephone.

### Claim 6 (depends on 5)

The device according to claim 5, wherein the processor further executes the set of instructions to:
when the second phone number is not a telephone number stored in the contact list of the first telephone, determine whether the second phone number conforms to a preset coding rule;
when the second phone number does not conform to the preset coding rule, output the information indicating that the incoming telephone call is a number-falsified telephone call.

### Claim 7 (depends on 5)

The device according to claim 5, wherein the processor further executes the set of instructions to determine whether the second telephone is calling the first telephone number when the second phone number conforms to the preset coding rule.

### Claim 8

A method for identifying an incoming telephone call, comprising
receiving, by an electronic device, a notification that a first telephone affiliated with a first telephone number receives an incoming telephone call from a second telephone number;
determining, by the electronic device, whether a second telephone affiliated with the second phone number is in fact currently calling the first telephone number based on both the first telephone number and the second telephone number; and
when the second telephone is not calling the first telephone number, outputting, by the electronic device, information indicating that the incoming telephone call is a number-falsified telephone call.

### Claim 9 (depends on 8)

The method according to claim 8, wherein the electronic device is a cloud server.

### Claim 10 (depends on 8)

The method according to claim 8, wherein the electronic device is a server connecting to the first telephone to provide a service of identifying a telephone call.

### Claim 11 (depends on 8)

The method according to claim 8, further comprising:
obtaining, by the electronic device, the first phone number;
sending, by the electronic device, the second phone number and the first phone number to a server associated with the second telephone to determine whether the second telephone is calling the first phone number; and
receiving, by the electronic device, from the server a result as to whether the second telephone is calling the first phone number.

### Claim 12 (depends on 8)

The method according to claim 8, further comprising:
determining, by the electronic device, whether the second phone number is a telephone number stored in a contact list of the first telephone; and
determining, by the electronic device, that the incoming telephone call is not a number-falsified telephone call when the second phone number is a telephone number stored in the contact list of the first telephone.

### Claim 13 (depends on 12)

The device according to claim 12, further comprising:
when the second phone number is not a telephone number stored in the contact list of the first telephone, determining, by the electronic device, whether the second phone number conforms to a preset coding rule;
when the second phone number does not conform to the preset coding rule, outputting, by the electronic device, the information indicating that the incoming telephone call is a number-falsified telephone call.

### Claim 14 (depends on 12)

The device according to claim 12, further comprising determining whether the second telephone is calling the first telephone number when the second phone number conforms to the preset coding rule.

### Claim 15

A processor-readable non-transitory storage medium, comprising a set of instructions for identifying an incoming telephone call, wherein when executed by a processor the set of instructions directs the processor to perform acts of,
receiving a notification that a first telephone affiliated with a first telephone number receives an incoming telephone call from a second telephone number;
determining whether a second telephone affiliated with the second phone number is in fact currently calling the first telephone number based on both the first telephone number and the second telephone number; and
when the second telephone is not calling the first telephone number, output information indicating that the incoming telephone call is a number-falsified telephone call.

### Claim 16 (depends on 15)

The storage medium according to claim 15, wherein the notification is received from the first telephone.

### Claim 17 (depends on 15)

The storage medium according to claim 15, wherein the set of instruction further directs the processor to perform acts of:
obtaining the first phone number;
sending the second phone number and the first phone number to a server associated with the second phone number to determine whether the second telephone is in fact calling the first phone number; and
receiving from the server a result as to whether the second telephone is calling the first phone number.

### Claim 18 (depends on 15)

The storage medium according to claim 15, wherein the set of instruction further directs the processor to perform acts of:
determining whether the second phone number is a telephone number stored in a contact list of the first telephone; and
determining that the incoming telephone call is not a number-falsified telephone call when the second phone number is a telephone number stored in the contact list of the first telephone.

### Claim 19 (depends on 18)

The storage medium according to claim 18, wherein the set of instruction further directs the processor to perform acts of:
when the second phone number is not a telephone number stored in the contact list of the first telephone, determining whether the second phone number conforms to a preset coding rule;
when the second phone number does not conform to the preset coding rule, outputting the prompt information.

### Claim 20 (depends on 18)

The storage medium according to claim 18, wherein the set of instruction further directs the processor to perform acts of determining whether the second telephone is calling the first telephone number when the second phone number conforms to the preset coding rule.

### Claim 21

A first telephone device affiliated with a first telephone number, comprising:
a processor-readable non-transitory storage medium storing a set of instructions for identifying an incoming telephone call; and
a processor in communication with the storage medium,
wherein when the first telephone device receives an incoming telephone call from a second telephone number, the processor executes the set of instructions to:
determine whether a second telephone affiliated with the second phone number is in fact currently calling the first telephone number based on both the first and telephone number and the second telephone number; and
when the second telephone is not calling the first telephone number, output information indicating that the incoming telephone call is a number-falsified telephone call.