System and method for optimizing circuit via which the domestic roaming user calls foreign visited user

Abstract

The invention discloses a system for optimizing a speech path called from domestic users in a roaming country to foreign visiting users and a method thereof. A device for intercepting a signaling is added between the domestic toll telecommunication bureau and the import and export bureau in the roaming country. The device for intercepting the signaling is used for intercepting and recording location information of foreign mobile users who roam to the domestic country and used for intercepting and processing an initialization address message of the domestic users calling the foreign mobile users to realize the object of optimizing a speech path detour which is called from roaming country domestic users to foreign visiting users. By adopting the system and the method of the invention, the problem of the speech path detour generated from roaming country domestic users calling foreign visiting users is solved. Network source as well as an international communication phone bill of calling and called users is saved. At the same time, operation business can also increase competitive strength effectively by carrying out the different service. The invention also avoids the deficiency of a protocol 3GPP TS 23.079 in practical application.

Description

technical field [0001] The present invention relates to the optimization processing technology of the voice channel when the user roams out of the home country, in particular, relates to a voice channel optimization processing system and method when the user in the roaming country calls the foreign visiting user. Background technique [0002] With the rapid increase of international communication services, detours between international toll offices may occur in the following situations: [0003] The user roams out of the home country (the country the user belongs to) and goes to another country, which is called the roaming country. When the user in the roaming country dials the foreign visitor number, the call connection may be detoured between international toll offices. like figure 1 In general, as shown in the schematic diagram of the call routing of a domestic user in a roaming country calling a foreign visiting user, the calling user in the roaming country calls a fore...

AI Technical Summary

Problems solved by technology

[0011] 1. The agreement only stipulates the optimized route from mobile users to mobile users, but does not specify the optimized route from fixed users to mobile users. Fixed users in roaming countries will still have detours when dialing foreign mobile users who visit;

[0012] 2. This agreement requires the gateway mobile switching center, visiting location register and home location register of the roaming country and the home country to support the agreement, but currently quite a lot of equipment does not support it;

[0013] 3. Even if all the above-mentioned devices support the 3GPP TS 23.079 optimized routing protocol, the communication operators in the roaming country and the home country need to carry out optimized routing services. If this service is not opened in one country and another country, users in these two countries roam to In the other country, detours between international long-distance bureaus will inevitably occur

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