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A method, device, and communication system for implementing an emergency call

A technology of emergency call and implementation method, applied in the field of communication, can solve problems such as reducing the service experience of one-number multi-card

Active Publication Date: 2020-12-01
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the secondary card number initiates an emergency call, the calling number received by the called device is still the secondary card number, thereby reducing the service experience of the user using one number and multiple cards

Method used

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  • A method, device, and communication system for implementing an emergency call
  • A method, device, and communication system for implementing an emergency call
  • A method, device, and communication system for implementing an emergency call

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032]IP Multimedia Subsystem IMS (IP Multimedia Subsystem) is a brand-new multimedia service form, which can meet the requirements of newer and more diversified multimedia services of current terminal customers. In addition to providing services for packet access networks such as GPRS (General Packet Radio Service, General Packet Radio Service), WLAN (Wireless Local Area Network, Wireless Local Area Network), it can also provide services for GSM (Global System...

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Abstract

The embodiment of the present invention discloses an emergency call implementation method, equipment, and communication system, which relate to the field of communication technology, and can realize external display of the main card number when the secondary card number of the one-number multi-card initiates an emergency call, thereby improving user usage. No.1 Doka's business experience. The method includes: P‑CSCF confirms that the called number is an emergency call number and the first calling number is the secondary card number of multiple cards of No. 1, then adds the emergency call identifier of the secondary card in the invite request, generates the first call request, and sends To S‑CSCF; S‑CSCF sends the first call request to the determined AS; AS modifies the secondary card number of the No. 1 multi-card to the primary card number of the No. 1 multi-card to generate a second call request; Set as the address of the P-CSCF; AS sends the second call request and the address of the P-CSCF to the S-CSCF; the S-CSCF sends the second call request to the P-CSCF according to the address of the P-CSCF, so that the P-CSCF After deleting the emergency call identifier of the secondary card in the second call request, send it to E‑CSCF. The embodiment of the present invention is applied to a network system.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of communication, and in particular, to a method and device for implementing an emergency call, and a communication system. Background technique [0002] With the development of the network and the rapid popularization of smart terminals, the data services in the mobile network continue to increase, and the service requirements of users are increasingly rich and diversified. One-number multiple cards and one-card multiple numbers services have a wide range of application scenarios. One number multi-card service means that multiple mobile terminals (multiple SIM cards) can share the same mobile phone number for voice, short message and data services. For the voice service, the one-number multi-card service includes two parts of the process: calling and called. Among them, the function of the calling one-number multi-card service means that when the card number initiates a call, the call...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04M1/725H04W4/90H04W88/06
CPCH04L65/1016H04W88/06H04W4/90H04M1/72418
Inventor 刘牧寅符刚马泽芳李延斌
Owner CHINA UNITED NETWORK COMM GRP CO LTD