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Method for multiple early media services in one call process

An early media and call process technology, applied in branch offices providing special services, subscriber special services, data exchange details, etc., to achieve the effect of improving service quality, broadening service areas, and implementing a simple process

Inactive Publication Date: 2007-08-01
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] However, the above-mentioned work and regulations for early media are all aimed at realizing a separate early media service during a call. If two or more early media services are to be implemented in a call services, such as the implementation of CRBT and CRTV services during a call, the above-mentioned existing standard documents or specifications are powerless; therefore, how to implement only a single early media in a call with the existing technology To improve and break through the limitations of similar businesses has become the focus of attention and research by technical personnel in the industry

Method used

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  • Method for multiple early media services in one call process

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] Referring to Fig. 1, the present invention is a kind of method that realizes a plurality of early media class services in a calling process based on IMS, and this method mainly comprises following three operation steps:

[0024] A. Extend the header field of the SIP message in the IETF RFC3959 file: add a type configuration parameter (disposition-parm) to distinguish different early media configuration types (early-session).

[0025] This type of configuration parameter consists of two parts: parameter name and parameter value. The parameter name can be set as "type", and the parameter value can be set as a character string representing early media services. Expressed by "mrbt", etc., the parameter value can be dynamically defined as the types of early medi...

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Abstract

The disclosed method for multiple early media business during one calling based on IP multimedia system comprises: expanding the head field of SIP information in RFC 3959 file of IETF by adding a type configuration parameter for different media type; dividing the SDP in SIP information entity into the dialogue SDP and early-media SDP; the early-media platform in IP multimedia system differentiates early-media SDP according to received type configuration parameter in SIP information entity to provide business for the calling and called. This invention is simple and convenient, changes a little to network device, expands business field, and brings both-win for the provider and user.

Description

technical field [0001] The present invention relates to a method for realizing multiple early media services in one call process, to be precise, relates to a method for realizing multiple early media services in one call process based on an IP multimedia system, which belongs to mobile communication technology In the technical field of IMS-based telecom value-added services. Background technique [0002] With the development of telecommunication networks and the improvement of people's living standards, personalized and differentiated services represent a development trend of telecommunication value-added services. Color Ring Back Tone (CRBT, Color Ring Back Tone) service is the multimedia information customized by the called user received by the calling user before the call when the calling user dials the called user; When the user is a user, the multimedia information customized by the calling user received by the called user before the call. The CRBT service is customiz...

Claims

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Application Information

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IPC IPC(8): H04L12/16H04Q7/22H04M3/42H04L29/06H04L12/56H04L1/16
CPCH04L65/1016H04L65/1033H04L65/1069H04L65/403H04L65/1104
Inventor 廖建新王晶王纯李炜荀兆勇曹予飞朱晓民张磊徐童张乐剑沈奇威樊利民程莉
Owner BEIJING UNIV OF POSTS & TELECOMM
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