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Method for transmitting voice data over different types of networks, and corresponding units

A technology of voice data and network, applied in the direction of transmission system, digital transmission system, data exchange network, etc., to achieve the effect of good voice quality

Inactive Publication Date: 2005-03-16
ノキアソリューションズアンドネットワークスゲゼルシャフトミットベシュレンクテルハフツングウントコンパニーコマンディトゲゼルシャフト
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many different measures are known from circuit-switched networks to suppress the transmission of useful data during call breaks, but these measures cannot be transferred without difficulty to packet transmission networks or to circuit-switched networks and packet transmission transitions between networks, since they only concern better utilization of transmission channels

Method used

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  • Method for transmitting voice data over different types of networks, and corresponding units
  • Method for transmitting voice data over different types of networks, and corresponding units
  • Method for transmitting voice data over different types of networks, and corresponding units

Examples

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Embodiment Construction

[0034] figure 1 A telephone network 12 connected to the Internet 10 is provided, for example the telephone network of Telecom AG. exist figure 1 In , the two parts 14 and 16 of the telephone network 12 are shown. For example, section 14 is located in southern Germany and section 16 is located in northern Germany. A terminating exchange 18 is indicated in section 14, to which the subscriber TlnA is connected via a transmission line 20, for example via an ISDN (Integrated Services Digital Network) connection. The terminating exchange 18 is connected to a transit exchange 24 via a relay exchange line 20 . The transit switching center 24 is, for example, a conventional switching center of the EWSD type (Electronic Controlled Digital Switching System) from Siemens AG. Transmission link 26 leads from transit switch 24 to network transition unit 28 . Transmission link 26 is, for example, a channel of the PCM-30 system (pulse code modulation), as is otherwise used for the transmi...

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PUM

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Abstract

The invention relates to a method in which useful data is transmitted over a transmission link (26, 40) of a circuit-switched network (12). Useful data transmitted over the transmission link (26, 42) is divided into data packets (152 to 160) and is forwarded over a packet transmission network (10) when the useful data is typical of voice transmission. However, when the useful data is typical of quiet periods, no useful data is forwarded over the packet transmission network (10). The type of connection is determined in a signaling unit (48, 50).

Description

technical field [0001] The invention relates to a method for transmitting voice data over different types of networks, wherein useful data is transmitted over transmission links of a circuit-switched data transmission network. The useful data transmitted via the transmission links are assigned to data packets and transmitted via the packet transmission network. The invention also relates to corresponding communication devices and network transition units. Background technique [0002] A known method is implemented in a network transition unit connecting the packet transmission network and the circuit switched network, see the standard H.323 ( 02 / 98) "Packet-Based Multimedia Communication Systems". A network transition unit is also referred to as a gateway in this standard. [0003] In a packet transport network, data is transferred on the basis of data packets. However, methods are also known for transmitting data packets in circuit-switched networks. The data packet ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/64H04M7/12
CPCH04L12/6418H04M7/1255H04M7/1245H04L2012/6494H04L2012/6486
Inventor K·霍夫曼
Owner ノキアソリューションズアンドネットワークスゲゼルシャフトミットベシュレンクテルハフツングウントコンパニーコマンディトゲゼルシャフト
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