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Official business interconnecting device for transmission equipment

A business and telephone interface technology, which is applied in the direction of interconnection line combination, electrical components, network connection, etc., can solve the problems of inability to communicate with public network telephones and SDH equipment with business telephones, so as to improve practical value, Low cost and the effect of expanding the scope of application

Active Publication Date: 2009-06-17
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because in the SDH standard, there is no uniform and strict regulation on the specific signaling of business telephones, most SDH business telephones of manufacturers rely on their own private signaling, so they can only be used in their own SDH network, and cannot Intercommunication with Telecom public network telephone, also unable to realize official telephone intercommunication between SDH equipment of different manufacturers

Method used

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  • Official business interconnecting device for transmission equipment
  • Official business interconnecting device for transmission equipment
  • Official business interconnecting device for transmission equipment

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Embodiment Construction

[0010] The present invention will be further described in detail below in conjunction with the drawings and application examples.

[0011] figure 1 It is the structural block diagram of the service interconnection device proposed by the present invention. Such as figure 1 As shown, the service interconnection device proposed by the present invention includes a telephone interface unit, a ringing signal detection unit, a DTMF signal detection unit, a busy tone signal detection unit, a digital voice superimposition processing unit, and a microprocessor.

[0012] The telephone interface unit receives the ringing signal, DTMF signal, busy signal and audio signal, performs voltage conversion and sends them to the ringing signal detection unit, DTMF signal detection unit, busy signal detection unit and digital voice superimposition processing unit respectively, and is processed in the microcomputer. The simulated pick-and-hook action is completed under the control of the device. The ...

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PUM

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Abstract

The invention discloses a public-affairs interconnection device for transmission device, which comprises: a telephone interface unit to convert voltage and simulate hanging down, a ringing signal detection unit, a DTMF signal detection unit, a busy-tone signal detection unit, digital dialog overlap treatment unit to complete A / D and D / A conversion for audio signal, and a MCU to overlay digital dialog signal and SDH byte to output to SDH optical board for broadcast to SDH site. This invention is simple, low cost and increases practical value of SDH device affair telephone.

Description

Technical field [0001] The present invention relates to optical synchronous digital transmission (SDH) technology, and specifically, is a device for official interconnection of optical synchronous digital transmission equipment. Background technique [0002] In SDH equipment, the official telephone is a dedicated telephone in the network used for equipment activation and maintenance. With the large-scale use of SDH equipment from different manufacturers and the popularization of telecommunications public network phones, the intercommunication between SDH equipment's official telephones and telecommunications public network telephones has become a requirement. At the same time, from the perspective of interconnection and intercommunication, different manufacturers’ SDH equipment can realize the direct intercommunication of official telephones. Since in the SDH standard, there is no uniform and strict regulation on the specific signaling of official telephones, most of the manufact...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M11/00H04M9/06H04L12/66
Inventor 桂国才王莉李天英苏卉
Owner ZTE CORP