EMERGENCY CALLBACK SYSTEM

• US 20180048601A1
• Filed: 08/11/2017
• Published: 02/15/2018
• Est. Priority Date: 08/12/2016
• Status: Abandoned Application

• Current Assignee: 9069569 Canada Inc.
• Original Assignee: 9069569 Canada Inc.
• Inventors: Macy, Mark, Maclachlan, Ross
• Application Number:
  US15/675,086
• Publication Number:
  US 20180048601A1
• Time in Patent Office: Days
• CPC Class Codes: H04L 2463/062 applying encryption of the keys
• CPC Class Codes: H04L 51/063 Content adaptation, e.g. replacement of unsuitable content
• CPC Class Codes: H04L 63/0435 wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption cryptographic mechanisms or cryptographic arrangements for symmetric key encryption H04L9/06
• CPC Class Codes: H04L 63/045 wherein the sending and receiving network entities apply hybrid encryption, i.e. combination of symmetric and asymmetric encryption cryptographic mechanisms or cryptographic arrangements using a plurality of keys or algorithms H04L9/14
• CPC Class Codes: H04L 9/0822 using key encryption key
• CPC Class Codes: H04L 9/0894 Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
• CPC Class Codes: H04L 9/14 using a plurality of keys or algorithms
• CPC Class Codes: H04L 9/30 Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
• CPC Class Codes: H04L 9/3226 using a predetermined code, e.g. password, passphrase or PIN network architectures or network communication protocols for supporting authentication of entities using passwords in a packet data network H04L63/083
• CPC Class Codes: H04M 2242/04 for emergency applications
• CPC Class Codes: H04M 2242/18 Automated outdialling systems
• CPC Class Codes: H04M 3/493 Interactive information services, e.g. directory enquiries ; Arrangements therefor, e.g. interactive voice response [IVR] systems or voice portals
• CPC Class Codes: H04W 12/03 Protecting confidentiality, e.g. by encryption
• CPC Class Codes: H04W 12/04 Key management, e.g. using generic bootstrapping architecture [GBA]
• CPC Class Codes: H04W 12/72 Subscriber identity
• CPC Class Codes: H04W 4/12 Messaging; Mailboxes; Announcements
• CPC Class Codes: H04W 4/14 Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]

Abstract

An emergency call back system is described to enable off-duty officers to be contacted in emergency events. The officers can provide an estimated arrival time in response to the call back message from their mobile device and arrival time tracking can be performed to show when officers will arrive in response to the request. Contact information in the database is encrypted and can only be decrypted using a decryption key provided to a party external to the database provider.

Claims

1. A method of performing emergency call back, the method comprises:

receiving an emergency call back initiation request at an emergency call back server;

receiving a decryption key for a database associated with information of an organization for the emergency call back request;

decrypting contact information in the database using the decryption key;

generating call back message notification for at least one entry in the database; and

sending the call back message notification to a messaging system.

2. The method of claim 1 wherein receiving the decryption key further comprises:

requesting a first decryption key from the initiator of the call back initiation request;

retrieving an encrypted symmetric key associated with the database; and

decrypting the encrypted symmetric key using the first decryption key;

wherein decrypting the contact information in the database uses the symmetric key.

3. The method of claim 2 wherein the decryption key is a private decryption key.

4. The method of claim 3 wherein the symmetric key is encrypted using a public encryption key associated with the private decryption key.

5. The method of claim 1 wherein the messaging system converts the call back message notification to an SMS message.

6. The method of claim 5 wherein the messaging system generates a token for each phone number associated with the call back message notification.

7. The method of claim 6 wherein the token is associated with each entry of the at least one entry in the database.

8. The method of claim 7 further comprising receiving a response from the SMS message from a recipient.

9. The method of claim 8 further comprising receiving the response and a token identifier.

10. The method of any one of claim 1 further comprising storing received responses to generate estimated arrival times.

11. The method of any one of claim 1 wherein the decryption key is stored remotely from the database.

12. The method of claim 1 further comprising receiving a token from the messaging system and associating the token with an associated recipient.

13. The method of claim 12 further comprising receiving subsequent responses form the call back messaging notification identified by the token, the response indicating a response time of the associated recipient.

14. A system for emergency call back comprising:

a server for storing a call back database containing identification of personnel and encrypted contact information which is used to generate call back messaging notifications to one or more users, wherein responses from the one or more users is tracked to provide an estimated arrival time; and

a second computing device storing a decryption key for the call back database remote from the server;

wherein the decryption key is provided to the server to decrypt the encrypted contact information when an emergency event is initiated.

15. The system of claim 14 wherein the decryption key is a symmetric key where the symmetric key is used to encrypt the contact information, the symmetric key further encrypted by an encryption key to provide an encrypted symmetric key, wherein the second computing device provides the decryption key to the server to decrypt an encrypted symmetric key.

16. The system of claim 15 wherein the decryption key is a private decryption key.

17. The system of claim 16 wherein the symmetric key is encrypted using a public encryption key associated with the private decryption key.

18. The system of claim 14 wherein the server sends the call back messaging notifications to a messaging system, the messaging system for converting the notifications to SMS messages.

19. The system of claim 18 wherein the messaging system generates a token to identify each call back messaging notification and track responses to the notifications.

20. The system of claim 19 wherein the server receives tokens from the messaging system to track user responses.

21. The system of claim 20 wherein a report is generated from user responses providing their estimated arrival time.

22. A non-transitory computer readable memory containing instructions which when executed by a processor of the emergency call back server cause the processor to perform:

receive an emergency call back initiation request at the emergency call back server;

receive a decryption key for a database associated with information of an organization for the emergency call back request;

decrypting contact information in the database using the decryption key;

generate call back message notification for at least one entry in the database; and

send the call back message notification to a messaging system.