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Realization method for voice switch to fax service

A technology of fax service and implementation method, which is applied in the direction of electrical components, image communication, selection devices, etc., can solve the problems of false detection and low success rate of voice-to-fax, and achieve the effect of improving the success rate

Inactive Publication Date: 2008-09-10
GLOBAL INNOVATION AGGREGATORS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The method of detecting the V.21 signal tone can theoretically realize the voice-to-fax when the inter-office relay is connected, but there is a certain time for playing the V.21 signal tone itself, and there are also false detections or slow detections, etc. problems, which often lead to a low success rate of voice-to-fax

Method used

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  • Realization method for voice switch to fax service
  • Realization method for voice switch to fax service
  • Realization method for voice switch to fax service

Examples

Experimental program
Comparison scheme
Effect test

application example 1

[0073] Such as Figure 4 As shown, the fax receiving end office and the fax sending end office are directly connected through a relay, where MSCE1 is the emulation of the sending end mobile switching center, and MSCE2 is the emulation of the receiving end mobile switching center. The method for implementing the voice-to-fax service of the present invention includes the following steps:

[0074] Step 401: The caller and the called party (that is, the fax receiving end and the fax sending end mentioned below) enter the voice conversation state, and the conversation is normal;

[0075] Step 402: The mobile terminal at the fax receiving end initiates a service switching request through the air interface, and MSCE2 finds that the voice is converted to fax, and performs processing such as establishing IWF resources;

[0076] Step 403: MSCE2 sends a message to MSCE1, instructing voice to fax;

[0077] Step 404: MSCE1 determines that a voice-to-fax has occurred, and then performs processi...

application example 2

[0080] Such as Figure 5 As shown, the sending end office and the receiving end office are connected through a tandem office, and both use inter-office relay connections. MSCE1 is the emulation of the sending end mobile switching center, MSCE2 is the emulation of the tandem office mobile switching center, and MSCE3 is the receiving end. If the mobile switching center is simulated, the implementation method of the voice-to-fax service includes the following steps:

[0081] Step 501: The caller and the called party first enter the voice call state, and the call is normal

[0082] Step 502: The mobile terminal at the fax receiving end initiates a service switching request through the air interface, and MSCE3 finds that the voice is converted to fax, and performs processing such as establishing IWF resources;

[0083] Step 503: MSCE3 sends a message to MSCE2, instructing voice to fax;

[0084] Step 504: MSCE2 finds that voice-to-fax has occurred, and judges that it is a relay connecti...

application example 3

[0088] Such as Figure 6 As shown, the sending end office and the receiving end office are connected through a tandem office, and the sending end office and the tandem office are connected by SIP, and the receiving end office and the tandem office are connected by an interoffice relay. Among them, MSCE1 is the sending end mobile switch Center simulation, MSCE2 is the simulation of the mobile switching center of the tandem office, and MSCE3 is the simulation of the mobile switching center of the receiving end. The implementation method of the voice-to-fax service includes the following steps:

[0089] Step 601: The caller and the called party first enter the voice call state, and the call is normal;

[0090] Step 602: The mobile terminal at the fax receiving end initiates a service switching request through the air interface, and MSCE3 finds that the voice is converted to fax, and performs processing such as establishing IWF resources;

[0091] Step 603: MSCE3 sends a message to MS...

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Abstract

The invention relates to a realization method of a voice changing to fax service. An interoffice protocol connected with a relay is extended to add messages of indicating voice changing to fax. After either of a calling party and a called party in a normal communication status issues a service handover request as a fax receiving end, the method comprises the following steps: (a) after an emulated MSCE of a mobile switching center of the fax receiving end discovers that the voice changing to fax service, the resource processing of establishing interworking function IWF is processed; (b) the fax receiving end MSCE sends messages to a fax transmitting end to indicate the occurrence of voice changing to fax; (c) after the fax transmitting MSCE receives the messages, the resource processing of establishing IWF is processed and a medium face IWF then has a negotiation so as to send the fax. The method of the invention can increase the success rate of voice changing to fax in an interoffice relay connection.

Description

Technical field [0001] The present invention relates to the field of mobile communication, in particular to a method for realizing voice-to-fax service in a mobile communication network. Background technique [0002] The mobile communication network implements traditional circuit-type data services similar to the PSTN (Public Switched Telephone Network) network through IWF (Inter working Function) equipment. IWF is a device that provides interworking functions between a mobile communication network and a PSTN network. It uses the mobile terminal MT2 (MT2 is a special abbreviation for Mobile Termination 2, which means mobile terminal type 2 equipment, that is, a terminal with circuit-type data transmission function. The mobile terminal mentioned in this article refers to this type of terminal, and no special description is given below) and The MODEM on the IWF works together to provide users with the same functions as the wired MODEM to realize circuit data services. [0003] At p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04N1/00
Inventor 宋端成刘颖斌杨明贵
Owner GLOBAL INNOVATION AGGREGATORS LLC