IP voice call switching method, system and user equipment

A technology for user equipment and voice calls, applied in the field of communications to improve call quality and reduce costs

Active Publication Date: 2013-12-04
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem solved by the present invention is to provide a method for switching IP voice calls, so as to solve the pr

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  • IP voice call switching method, system and user equipment
  • IP voice call switching method, system and user equipment
  • IP voice call switching method, system and user equipment

Examples

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[0059] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0060] In the embodiment of the present invention, UE stands for user equipment, and TAS stands for Telephony Application Server. TAS is a logical entity, which may include multiple network devices. For example, in actual network deployment, it may be an IMS (IP Multimedia system) core network. In short, it represents a mobile IP network deployed by a certain operator. Users can dial VoIP on this network, and TAS can manage VoIP (such as billing, etc.).

[0061] In the implementation of the present invention, the signaling process between UEs through TA...

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Abstract

The invention relates to the technical field of communication, and provides an IP voice call switching method so as to achieve the effect that a user can conduct switch in VoIP calls. The IP voice call switching method comprises the following steps: after a first VoIP call is made between first user equipment UE1 and second user equipment UE2, a first media stream A is built; when detecting that IP voice switching is needed, the UE1 sends a VoIP capacity inquiry request to a second IP network address of the UE2, and the UE2 sends back a second VoIP capacity inquiry result; the UE1 detects the second VoIP capacity inquiry result sent back by the UE2; if the UE2 supports the second VoIP capacity, a VoIP call is made in a second IP network by the UE1 and the UE2, and a second media stream B is built. The invention further provides an IP voice call switching system and the UEs.

Description

technical field [0001] The present invention relates to the technical field of communication, and in particular to a method and system for switching an IP voice call (Voice over IP, VoIP). Background technique [0002] After mobile voice has experienced the development from TDM (Time-Division Multiplexing, time-division multiplexing) to IP, and from traditional switch to softswitch, it will move towards mobile broadband voice in the future. In terms of network evolution, the wireless side is reflected in the development from GSM / CDMA / UMTS to LTE (Long Term Evolution, long-term evolution). [0003] At present, the world's leading telecom operators such as Vodafone in the UK, NTT DoCoMo in Japan, AT&T and Verizon in the United States have decided to adopt LTE technology. In 2009, Japan issued four LTE licenses and started commercial preparations for LTE. In addition, China Mobile will also vigorously promote the development of LTE technology, and LTE will continue the mainstr...

Claims

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Application Information

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IPC IPC(8): H04W36/00
Inventor 白天
Owner ZTE CORP
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