Voice gateway and method for providing VoIP service

A voice gateway and gateway technology, applied in the field of communication, can solve the problems of inability to determine the quality of the IP network, inability to perform dynamic switching, etc.

Inactive Publication Date: 2011-08-17
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are following two main shortcomings in above-mentioned prior art: 1, can not decide whether to initiate a call according to IP network quality
For example, if VoIP is set to a high priority, even if the quality of the IP network (such as delay and jitter) cannot meet the call conditions of VoIP, the call will still use the IP network
2. Dynamic switching is not possible, that is, it is impossible to switch from an unavailable IP network to a PSTN network to continue the original call during a VoIP call
Specifically, if the IP network becomes unavailable during a VoIP call, the existing voice gateway technology will terminate the call, so that the user can only manually dial the PSTN to re-initiate the call

Method used

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  • Voice gateway and method for providing VoIP service
  • Voice gateway and method for providing VoIP service
  • Voice gateway and method for providing VoIP service

Examples

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Embodiment Construction

[0037] The main idea of ​​the present invention is to dynamically perceive the quality of the IP network, so that an appropriate PSTN entity or VoIP entity can be selected to initiate a call according to the quality of the IP network, and / or when the quality of the IP network deteriorates, the VoIP call on it can be switched to a PSTN call in time without interruption. Describe it in detail below in conjunction with accompanying drawing.

[0038] figure 1 A structural block diagram of a preferred embodiment of the voice gateway provided by the present invention is given. Such as figure 1 As shown, the voice gateway 100 provided by the present invention includes a PSTN entity 110 , a VoIP entity 120 , a selection unit 130 , an IP availability analysis unit 140 , and an RTP quality monitoring unit 150 . and figure 1 The signal transmission relationship between the components in the system includes: ① indicates PSTN call; ② indicates VoIP call; ③ indicates detection message; ...

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PUM

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Abstract

The invention belongs to the network communication area, discloses the voice gateway which can provide VoIP service, and method for providing the VoIP service based on the voice gateway. The voice gateway includes the PSTN entity, VoIP entity, selection unit and IP availability analysis unit, wherein the IP availability analysis unit is used to detect the network quality of the IP network via sending the detection packet periodically; or the voice gateway includes the PSTN entity, VoIP entity, selection unit and RTP quality monitoring unit, wherein the RTP quality monitoring unit is used to real time monitoring the service quality of the RTP (read time transport protocol) via the RTCP (real time transport control protocol). So the selection unit can determine the type of the call to originate according the network quality; and / or the selection unit can determine whether to switch the call according to the network quality or the RTP service quality in the VoIP call.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a voice gateway capable of providing VoIP services, and a method for providing VoIP services applied thereto. Background technique [0002] VoIP (Voice Over IP) uses IP (Internet Protocol, Internet Protocol) packet switching network as the transmission platform, and performs a series of special processing such as compression and packaging of analog voice signals, so that it can be transmitted using connectionless IP packet data packets. Technology. Use VoIP technology to carry out IP telephony applications on IP-based data communication networks such as enterprise LANs, WANs, and the Internet. The cost of international and domestic long-distance calls through IP phones is low, which can greatly reduce call costs while ensuring good voice quality. However, the voice quality of VoIP is greatly affected by the quality of the IP network, and the main factors affecting the voi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/66H04L29/06H04M7/00H04L12/26H04L12/56
Inventor 刘先楠
Owner NEW H3C TECH CO LTD
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