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System and method for supporting VOIP and CS telephone

A telephone and telephone technology, which is applied in the field of communication and electronics, can solve the problems of complicated system workflow, high communication cost, and lack of conversion devices, etc., and achieve the effects of saving communication cost, improving value-added ability, and wide range of options

Inactive Publication Date: 2009-07-29
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, although the functions of VOIP packet phone and CS phone for home and business can be realized on the same device or gateway, the functions of the two SLICs are fixed, that is, they can only process the voice code stream or CS phone that flows through their respective VOIP phones. The voice code stream makes the whole system work process more complicated, and the overall communication cost is also high
Secondly, due to the lack of corresponding conversion devices, existing equipment or gateways cannot select the transmission mode of the CS telephone voice code stream

Method used

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  • System and method for supporting VOIP and CS telephone
  • System and method for supporting VOIP and CS telephone
  • System and method for supporting VOIP and CS telephone

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Embodiment Construction

[0051] The invention provides a system and method for supporting VOIP and CS telephone under the wireless broadband network. figure 1 For the wireless broadband module in the present invention does not have the block diagram of speech digital signal processing (DSP) function, as figure 1 As shown, it includes: terminal gateway equipment, wireless broadband module, SLIC and telephone. Among them, the phone is used to receive the user's dial-up, report the button, transmit the voice signal, caller ID, etc.; Two-way transmission of PCM line signals between terminal gateway devices; terminal gateway devices are used to judge whether the current initiated VOIP call or CS call is based on the received signal, and if it is a VOIP call, establish a session initiation protocol (SIP) through the wireless broadband module Connect, convert the PCM line signal to VOIP voice code stream, send it to the wireless broadband network through the wireless broadband module, convert the VOIP voice...

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Abstract

The invention discloses a system supporting VOIP and CS telephone, which comprises a terminal gateway equipment, a wireless broadband module, SLIC, SWITCH and a telephone set; the SLIC is used for bidirectional transmission of SPI and PCM line signal between the telephone set and the terminal gateway equipment; the SWITCH is used for transmitting VOIP voice code stream between the terminal gateway equipment and the SLIC, and establishing PCM line from the SLIC to the terminal gateway equipment or the wireless broadband module to transmit CS voice code stream; the terminal gateway equipment is used for communicating with the wireless broadband module to accomplish the voice signal transmission between infinite broadband network and the terminal gateway equipment; and the wireless broadband module is used for the network registration and connection of VOIP telephone and the establishing of CS telephone. The invention further discloses a method for supporting VOIP and CS telephone, By using the system and the method, user can enjoy different voice services according to different service scenes on one telephone set, and mobile service provider can dispose services according to different situations, improves increment capability, and saves communication cost.

Description

technical field [0001] The invention relates to the communication field and the electronic field, in particular to a system and method for supporting voice (VOIP) and circuit switching (CS) telephones based on network layer protocol. Background technique [0002] The full name of VOIP is Voice over Internet Protocol. In short, it is to digitize the analog voice signal (Voice) and transmit it in real time on the IP network in the form of data packets. The basic principle of VOIP is to compress and package the voice data coding through the voice compression algorithm, so that the voice data can be transmitted to the destination on the IP network, and then the data packet is restored to the original voice signal for answering through the reverse procedure. received. VOIP has been proposed for more than 10 years. With the continuous advancement of technology, the current VOIP has made great progress in voice quality and service quality (QoS). Advantages, it has been widely use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W76/02H04W80/10H04W88/16H04M7/00
CPCH04L65/1059H04M7/0057H04L29/06306
Inventor 王强
Owner ZTE CORP
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