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Caller and called realization method for E1 private line conference TV system

A conference TV and private line technology, applied in the direction of video conference system, two-way work system, etc., can solve the problems of increasing the complexity of user processing, lack of flexibility of the system, and inconvenient user operation

Inactive Publication Date: 2008-06-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This adds complexity to the user's handling of
Its main disadvantage is that the system lacks flexibility and the user operation is inconvenient

Method used

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  • Caller and called realization method for E1 private line conference TV system
  • Caller and called realization method for E1 private line conference TV system
  • Caller and called realization method for E1 private line conference TV system

Examples

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Comparison scheme
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Embodiment Construction

[0026] The present invention simulates the concept of calling and being called based on the existing E1 processing flow.

[0027] The existing E1 processing flow does not have the concept of calling and calling, please refer to the attached figure 2 , the specific process is:

[0028] The first step is to initialize the protocol stack, initialize H221 and H242.

[0029] In the second step, a capability set (capability set of the terminal) is set to the protocol stack. And down to the H242 module.

[0030] In the third step, the protocol stack initiates the H221 and H242 connections, starts the H221 search frame alignment signal (FAS code) operation, and H242 capability exchange and mode switching.

[0031] The protocol stack mentioned in the present invention refers to: a whole including the H221 protocol, the H242 protocol, and the protocol management layer.

[0032] The method for realizing the calling and called in the E1 dedicated line conference television system of ...

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PUM

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Abstract

The invention discloses a method for realizing calling and being called in a video conference system with an E1 special line, which solves the problem of no concept of calling or being called in the existing E1 flow, and includes the processes: initializing a protocol stack, initializing H221 and H242, utilizing and establishing a calling object when a calling terminal is required; and simulating a concept of calling and simulating a concept of being called. Compared with the prior art, the invention simulates the concepts of calling and being called on the basis of the existing E1 processing flow. Two terminals connected with each other through an E1 line have the concepts of calling and being called, and after starting up, a first terminal can determine whether to transmit data to a second terminal according to requirements. Provided that the first terminal generates calling toward the second terminal actively, the second terminal can determine whether to receive the calling according to requirements. The invention allows users to have more optional processing methods. The invention increases the flexibility of the system and facilitates the operation for users.

Description

technical field [0001] The invention relates to a signaling and data processing method in data communication, mainly based on the signaling processing method between videoconferencing terminals or between videoconferencing terminals and a multipoint control unit (MCU) in a videoconferencing system based on E1 dedicated lines. Background technique [0002] A basic multi-point conference TV system should be composed of MCU, conference terminal and transmission network. Conference TV terminals based on E1 dedicated lines are connected by E1 lines, and their signals are connected to MCU or other terminals through E1 lines. [0003] In the dedicated line conference TV system, the communication between the terminal and the terminal or between the terminal and the MCU is directly connected through the E1 line. The main protocols used are: H221, H242. The H221 protocol text stipulates that the entire 64kbit / s ~ 1920kbit / s transmission channel is dynamically subdivided into lower-r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/15
Inventor 杨龙李峰李军
Owner ZTE CORP