CN101001291A - System and implementing method for voice transmission in low-end route - Google Patents

Abstract

This invention discloses a system and a realization method for transmitting phone in low end router, which adds a general interface module on a low end route device including a phone access module and a relay module, said phone data conversion part converts the phone input signals of the user terminal to phone data packet by compression then the router routes said packet to the IP address of the destination terminal, which can realize the phone exchange function among users or between users and public phone nets in the router.

Description

A kind of system and implementation method of in low end router, carrying out voice transfer

Technical field

The present invention relates to the system and the implementation method of a kind of VoIP of realization (transmitting voice) function, relate in particular to the system and method that the low end router of communication field is optimized in actual applications by Internet Protocol.

Background technology

Along with the development of Internet and the continuous expansion of related service.Except carrying out transfer of data, voice transfer has become one of major function of INTERNET network.Usually realize that in enterprises voice over ip feature need set up as shown in Figure 1 two kinds of communication networks by means of voip gateway and router device: data network 110 and speech network 120.

Wherein, data network 110 comprises several computers 112 and a router device 111; Described computer 112 all is connected on the router device 111, and is connected to INTERNET network 101 by router device 111;

Described speech network 120 comprises several telephone sets 123, a PBX equipment 122 and a voip gateway equipment 121.

As shown in Figure 1, telephone set 123 all is connected to PBX equipment 122, and PBX equipment 122 is connected to voip gateway equipment 121 again.Be connected to public telephone network (PSTN) 102 by voip gateway equipment 121, and voip gateway equipment 121 is gone back couple in router equipment 111 simultaneously, to realize voice over ip feature.

Usually the realization of voice over ip feature needs speech data conversion portion and routing section, be the speech data conversion portion with the voice input signal of user terminal be voice data packet by compressing and converting, routing section is routed to switched voice data packet the IP address of destination terminal then.

Low end router equipment of the prior art (200) as shown in Figure 2 generally is made up of following a few part: CPU module (210), memory (220), common interface module (230), described common interface module (230) is connected with described CPU module (210) by general-purpose interface bus (240).

Illustrate that as above prior art can realize voice over ip feature, but need safeguard two networks simultaneously, cost is higher like this, and management is also comparatively complicated, and the also maintenance of inconvenient network.Therefore, the prior art existence can improve and develop part.

Summary of the invention

The object of the present invention is to provide a kind of system and implementation method of in low end router, carrying out voice transfer, can reduce service equipment, simplify the complexity of network configuration device, reduce cost, be convenient to management.

For solving the problems of the technologies described above, technical scheme of the present invention comprises:

A kind of system that in low end router, carries out voice transfer, it comprises CPU module, memory, common interface module, described common interface module is connected with described CPU module by general-purpose interface bus; Wherein, common interface module is set also on low end router equipment, described common interface module comprises voice interface module and voice trunking module.

Described voice-transmission system, wherein, described voice interface module comprises that voice insert part, exchange of speech part and digital signal processor speech processes part; And

Described voice insert the voice signal that part is used for voice analog signal is converted to pcm encoder, pass to described exchange of speech part;

Described exchange of speech partly is used for connecting voice by the time division multiplexing bus and inserts part and described digital signal processor speech processes part, and is connected with the CPU module of described router.

Described voice-transmission system, wherein, described voice trunking module comprises the first voice trunking module and the second voice trunking module, and the described first voice trunking module is used the level of telephone wire by the two wires analog line to change to carry out Signalling exchange in order to link the two wires analog subscriber interface of subscriber exchange; The described second voice trunking module connects the user's digital interface of subscriber exchange by the E1 line.

A kind of implementation method of in low end router, carrying out voice-transmission system, wherein, described method may further comprise the steps:

A, described speech data conversion portion are voice data packet with the voice input signal of user terminal by compressing and converting;

B, described low end router are routed to described voice data packet the IP address of destination terminal.

Adopt system provided by the present invention and implementation method to realize in the exchange of speech function between the router interior user or between router interior user and the public telephone network, and can when being provided, simplify complete network function the complexity of network configuration device, reduce the cost of service equipment, made things convenient for network management.

Description of drawings

Fig. 1 is by setting up data network 110 and speech network 120 realization voice over ip feature networking diagrams in the prior art;

Fig. 2 is a prior art mid-range-and-low-end routers structural representation;

Fig. 3 is by set up the schematic diagram of communication network in enterprises after adding voice interface module and voice trunking module on the low end router among the present invention;

Fig. 4 is at the improved structural representation of low end router among the present invention.

Embodiment

Below with reference to accompanying drawing, carry out comparatively detailed explanation at preferred embodiment of the present invention.

A kind of system and implementation method of in low end router, carrying out voice transfer of the present invention, by increase common interface module on low end router equipment is voice access module and voice trunking module, thereby reached only utilize a router device just can realize between the router interior user or router interior user and public telephone network (PSTN) between the exchange of speech function, and can realize voice over ip feature by INTERNET.This method is to a kind of optimization method of low end router in real system is used.

As shown in Figure 4, the present invention makes full use of the TCP/IP routing function of existing low end router, by on low end router, increasing common interface module both voice access module and voice trunking module, and then realize the needed voice over ip feature of user, and can utilize that telephone wire or E1 line insert that public telephone network (PSTN) is realized between the router interior user by the voice trunking module, the function of voice communication between router interior user and the public telephone network (PSTN).Compare with Fig. 2 scheme of the prior art, can significantly reduce service equipment behind employing the present invention.

As shown in Figure 4, the present invention realizes voice over ip feature on low end router, be to add common interface module, i.e. voice interface module (431), the first voice trunking modules A (432) and the second voice trunking module B (433) by going up at low end router equipment (400).They pass through general-purpose interface bus (440) and are connected with CPU module (410).

Wherein, described voice interface module (431) comprises that also voice insert part, exchange of speech part and DSP (Digital Signal Processor, digital signal processor) speech processes part.

Described voice insert the voice signal that partly voice analog signal is converted to pcm encoder, pass to described exchange of speech part.Can use the RJ-11 telephone wire of standard; directly be connected with equipment such as ordinary telephone set, facsimile machine, private branch exchanges; BORSCHT is provided (Battery; Overvoltage; Ringing, Supervision, Coding; Hybrid, Test) feed, overvoltage protection, ring, supervision, coding and decoding, mixing and test function.

Described exchange of speech partly connects voice by TDM bus (Time Division Multiplexed time division multiplexing) and inserts part and described DSP speech processes part, and is connected with the CPU module of described router.By the exchange of PCM voice flow, realize that voice insert part and DSP speech processes bridge joint partly, and further realize between each port of voice interface module, the exchange of speech function between voice interface module and the voice trunking module.

The speech processes of DSP described in the present invention part with pcm encoder after carrying out compress speech, packing supervisor, to wrap data and pass to described CPU module by general-purpose interface bus, utilize interface modules such as Ethernet, POS to insert IP network then, described CPU module is received the bag data of coming from IP network and is sent to described DSP speech processes part through described general-purpose interface bus (440), execution unpacks, voice go to be reduced into speech data after the compression, as shown in Figure 4.As seen, adopt technical solution of the present invention to greatly reduce cost, farthest made things convenient for network management.

As shown in Figure 3, for having increased the network model of low end router in enterprise practical is used after voice interface module and the voice trunking module among the present invention.Computer (315) and computer (316) are connected on the described low end router equipment (310) by netting twine; Telephone set (311) and telephone set (312) are connected on the voice access module of described low end router equipment (310) by telephone wire; Telephone set (313) is connected on PBX (the Private Branch eXchange subscriber exchange) equipment (314) by telephone wire, and described PBX equipment (314) is connected on the voice trunking module (B433) of described low end router equipment (310) by the E1 line.Described low end router equipment (310) is linked into public telephone network (302) by the described first voice trunking modules A (432) or the second voice trunking module B (433).Described low end router equipment (310) inserts INTERNET net (301) by other common interface modules.Described telephone set (321) is connected on the voip gateway equipment (320) by telephone wire, and described voip gateway equipment (320) connects into INTERNET net 301 by netting twine.Telephone set (331) inserts described public telephone network (302) by telephone wire.

As shown in Figure 3, in the system and method for the present invention, user in enterprises, the user that the user of described telephone set (311) can directly call out described telephone set (312) and described telephone set (313) by the voice access module and the first voice trunking module of described low end router equipment (310), thereby the voice communication of realization enterprises.

In the user of enterprises, the user that the user of described telephone set (311) or described telephone set (312) or described telephone set (313) can call out the above telephone set of described public telephone network (302) (331) by the first voice trunking module or the second voice trunking module of described low end router equipment (310), thus realize the voice communication of enterprises and described public telephone network (302).

Enterprises user: the user of described telephone set (311) or described telephone set (312) or described telephone set (313) can realize the mutual conversion of PCM voice flow and IP grouping by described low end router equipment (310), and pass through described low end router equipment (310) and go up other common interface modules such as 10/100/100M Ethernet network interface or pos interface, insert described INTERNET net (301), call out the user of the above telephone set of described voip gateway equipment (320) (321), thereby realize voice over ip feature.

The user of the above telephone set of described public telephone network (302) (331) also can be linked into described low end router equipment (310) by the second described voice trunking module of described low end router equipment (310), and be linked into described INTERNET net (301) by the voice over ip feature of described low end router equipment (310), call out the user of the above telephone set of described voip gateway equipment (320) (321), thereby realize voice over ip feature.

Be linked into described INTERNET net (301) at enterprises user's the described computer (315) and the user of described computer (316) by described low end router equipment (310).

On low end router, pass through to increase common interface module both voice access module and voice trunking module provided by the present invention have been adopted, thereby realize the system and the implementation method of voice over ip feature, PBX, TCP/IP route, VoIP voice gateway capability all can be integrated into one above the low end router, the voice communications versus data communications of enterprises is fused on the network, has realized the purpose of when complete communication function is provided, simplifying network configuration, reducing cost, make things convenient for network management fully.

Should be understood that, more than the comparatively detailed explanation carried out at patent of the present invention can not be interpreted as the protection range of patent of the present invention, the protection range of patent of the present invention should be as the criterion with claims.

Claims (4)

1, a kind of system that in low end router, carries out voice transfer, it comprises CPU module, memory, common interface module, described common interface module is connected with described CPU module by general-purpose interface bus; It is characterized in that common interface module also is set, and described common interface module comprises voice interface module and voice trunking module on low end router equipment.

2, voice-transmission system according to claim 1 is characterized in that, described voice interface module comprises that voice insert part, exchange of speech part and digital signal processor speech processes part; And

Described voice insert the voice signal that part is used for voice analog signal is converted to pcm encoder, pass to described exchange of speech part;

Described exchange of speech partly is used for connecting voice by the time division multiplexing bus and inserts part and described digital signal processor speech processes part, and is connected with the CPU module of described router.

3, voice-transmission system according to claim 1, it is characterized in that, described voice trunking module comprises the first voice trunking module and the second voice trunking module, and the described first voice trunking module is used the level of telephone wire by the two wires analog line to change to carry out Signalling exchange in order to link the two wires analog subscriber interface of subscriber exchange; The described second voice trunking module connects the user's digital interface of subscriber exchange by the E1 line.

4, a kind of implementation method of carrying out voice-transmission system in low end router according to claim 1 is characterized in that described method may further comprise the steps:

A, described speech data conversion portion are voice data packet with the voice input signal of user terminal by compressing and converting;

B, described low end router are routed to described voice data packet the IP address of destination terminal.

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