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Method for realizing analogue loop relay glare reduction

A technology of loop relay and implementation method, applied in the direction of automatic exchange, telephone communication, electrical components, etc., to achieve the effect of reducing the same robbing

Inactive Publication Date: 2007-11-14
BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, it will take a few seconds for the ringing of the relay and the real occupation of the relay, and the probability of simultaneous snatching in this case is even greater.

Method used

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  • Method for realizing analogue loop relay glare reduction
  • Method for realizing analogue loop relay glare reduction

Examples

Experimental program
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Embodiment Construction

[0018] The invention provides a method for realizing the reduction of simultaneous grabbing of simulated loop relays. Simultaneous trunk snatching refers to the situation that the two interconnected offices occupy a trunk at the same time (as shown in Figure 1). Generally, when the outside line rings into the trunk, the analog loop trunk board starts ringing until the trunk is occupied. At the same time, because the analog loop relay is ringing, in order to protect the hardware relay, the call processing module of the analog loop relay does not send a relay off-hook message to the analog loop relay board. Instead, according to the actual situation of the trunk, when receiving the first stop ringing message or the second stop ringing message, the relay off-hook message is sent to the analog loop relay board, so during this period, Outgoing trunk calls may also occupy this trunk, resulting in simultaneous grabbing. The most effective way to reduce co-contesting is to occupy the...

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PUM

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Abstract

In first time when detecting ringing, the analogy loop relay plate (ALRP) preempts relay resources of analogy loop. The method includes following steps: ALRP has detected ringing; ALRP sends the ringing to the call handing module of analogy loop relay; thus, preempting the trunk line of relay management module in advance; outtrunk call is unable to allot the line of analogy loop relay so that preemption issue of analogy loop relay is reduced in maximum extent. In the invention, even if preemption issue occurs, the preferential principle of intrunk is followed: calls in outtrunk are released, and relays are utilized reasonably when preemption occurs.

Description

technical field [0001] The invention belongs to the technical field of relay communication, and in particular relates to a method for reducing the simultaneous grabbing of analog loop relays. [0002] Glossary: [0003] FXO: analog loop trunk interface (Foreign Exchange office) [0004] External line: analog telephone users connected to the analog loop trunk Background technique [0005] The so-called trunk co-catch refers to the situation that the two connected offices occupy a trunk at the same time. FXO co-catch means that the outside ringing trunk and the FXO outgoing trunk occupy an FXO trunk at the same time. [0006] The earliest FXO trunks generally do not allow two-way, and usually a FXO trunk can only be configured as an outgoing trunk or an incoming trunk. The one-way of the relay ensures that the same robbery will not happen. [0007] In order to improve the utilization rate of FXO trunks, most FXO trunks are configured as two-way trunks. As long as it is a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M3/00H04M3/22H04M7/00
Inventor 杜玲
Owner BEIJING JIAXUN FEIHONG ELECTRIC CO LTD