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Field transition calling method and system

A domain transfer and network technology, applied in the field of domain transfer calls, can solve problems such as user inconvenience, voice call interruption, and user dropout

Active Publication Date: 2010-05-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the terminal does not receive the release command from the network, the next time the terminal tries to switch back to the network where the old access leg is located, it will not be able to initiate a call because the protocol stack still has a signaling session, resulting in the original voice call Interruption, the user in the call is dropped, causing inconvenience to the user

Method used

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  • Field transition calling method and system
  • Field transition calling method and system
  • Field transition calling method and system

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no. 3 example

[0160] See Figure 7 It is the third embodiment of the domain transfer call system provided by the present invention, including:

[0161] The judging unit 100 is used to judge whether the current terminal is in a domain transfer state;

[0162] The user prompt sound unit 500 is used to play the domain transfer prompt sound during the domain transfer process;

[0163] The vocoder switching unit 200 is configured to switch the vocoder to a new domain after the judgment unit judges that the current terminal is in a domain transfer state;

[0164] The new access leg confirmation unit 300, after the vocoder switches to the new domain, is used to send a connection confirmation message to the network to confirm the establishment of a new access leg;

[0165] The old access leg releasing unit 400 is used to release the old access leg after the new access leg is established.

[0166] Among them, the old access leg release unit includes:

[0167] The access leg release command receiving unit is us...

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Abstract

A calling method of domain transfer includes judging whether current terminal is on domain transfer state or not and switching vocoder to new domain if it is, sending connection-confirmation message to network and confirming as well as setting up new access pin. The system for realizing said method is also disclosed.

Description

Technical field [0001] The present invention relates to the field of communications, in particular to a method and system for domain transfer calls. Background technique [0002] The current direction of network development is heterogeneous interconnection and intercommunication, and the seamless switching of a language service between different network structures is called domain transfer. At present, the seamless switching of voice services in different networks is mainly realized through domain transfer calls. Take a typical voice service switching between a UMTS (Universal Mobile Telecommunication System) network and a WLAN (wireless local area network) controlled by an IMS (IP Multimedia Sub-system) network as an example. When the terminal user in the call is far away from the UMTS signal coverage and begins to enter the WLAN signal coverage area, the terminal initiates a domain transfer call request to the IMS according to the signal changes of UMTS and WLAN, and performs ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/16H04W76/02H04W76/06
Inventor 朱东铭徐杰张朝辉张翼
Owner HUAWEI TECH CO LTD