CN1486077A - Operating method of net bar IP phone supermarket system - Google Patents
Operating method of net bar IP phone supermarket system Download PDFInfo
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- CN1486077A CN1486077A CNA021383456A CN02138345A CN1486077A CN 1486077 A CN1486077 A CN 1486077A CN A021383456 A CNA021383456 A CN A021383456A CN 02138345 A CN02138345 A CN 02138345A CN 1486077 A CN1486077 A CN 1486077A
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Abstract
The invention refers to an operation method for IP public telephone communication system. The calling computer soft telephone and management charging device of the system net bar appliance are connected to soft interchanging server through data bus, the soft interchanging server connects with web address transformer/router through data bus, the web address transformer/router accesses to internet through wideband; the IP gateway of target end device connects to internet, the other end connects to interchanger through digital relay line, the interchanger connects with called IP telephone or user telephone through PSTN, the bureau charging device connects with IP gateway.
Description
Technical field
The present invention relates to a kind of public telephone communication system operation method, especially a kind of based on ' public telephone communication system operation method, belong to communication technical field.
Background technology
Along with the raising of telephone penetration rate and developing rapidly of radio communication, as if on the surface, public telephone market is restricted.But in fact, spread all over the country public place and main busy streets such as each city airport, station, hotel, commercial center, universities and colleges of public telephone on the one hand, be very easy to user's use, China is numerous on the other hand, seldom to use the moderate and low-income citizens of telephone communication be the huge potential user of public telephone always.Even it is in Guangzhou, such big city, Shanghai, still very huge by the public telephone consumer group that colonies such as a large amount of floating populations and student form.Therefore, the public telephone management mode of a kind of being called as " IP supermarket " just sweeps across on both sides of the Changjiang River recently.
So-called " IP supermarket " is exactly to come the managing public telephone booth in the mode in supermarket.Several even tens telephone sets are generally all arranged in " IP supermarket ", and the user enters " IP supermarket " and can directly make a phone call arbitrarily on the telephone set of appointment, finally in the unified checkout of cashier (the IP supermarket generally all is provided with the centralized billing system of computer management).Because adopt IP to insert, telephone expenses are cheap, and the user can use arbitrarily continuously, all makes things convenient for than general public telephone, IC phone etc.For the operator, can owing to adopt computer system, make the general phone service appropriate scale of operation managing human and cost lower, the positive power of managing is arranged.
The implementation in existing IP supermarket has two kinds: a kind of direct placement IP gateway, and transfer voice signal to the IP signal and enter IP network, be transferred to the destination gateway, change local PSTN net again over to, arrive target phone (referring to Fig. 1) at last; Another kind is not installed IP gateway, receives on the idle E1 interface of telecom operators but place Private Branch Exchange PBX (phone is allocated device), inserts IP network (referring to Fig. 2) by key gateway again.Present more IP adopts a kind of mode in back in the supermarket.More than two kinds of implementations need buy gateway or Private Branch Exchange PBX and charging computer system etc., generally invest a medium scale IP supermarket about about 500,000.In addition, for operator, adopt above-mentioned which kind of scheme all to need Leased line to be linked into the IP supermarket, so investment cost is bigger.
Summary of the invention
The objective of the invention is to: propose a kind of not only economical operation, and invest cheap, realize to be easy to operating method of net bar IP phone supermarket system, thereby cater to the demand of public telephone Communications Market development, for operator and vast public telephone user bring more convenient.
The applicant notices: be exactly the Internet bar in China's broadband popularity rate public service place the highest, that press close to the netizen most at present.If can be the management mode combination in wideband data access and IP supermarket, its prospect will be very bright.
Domesticly expressly provide that the Internet bar of big and medium-sized cities manages needs 50 above service terminals, and the network access mode of these Internet bars has all adopted broadband access more than 98%, some conditions more adopt optical fiber to insert at a high speed preferably, have extraordinary bandwidth resources.The PC of Internet bar all is the enough strong multimedia computer of disposal ability, and has been linked to be LAN, therefore as long as in conjunction with corresponding software engineering, just can become high-quality IP phone terminal at once.
On this understanding basis, solution that the applicant proposes following " operating method of net bar IP phone supermarket system ": this system comprises Internet bar's end facility and destination facility
Internet bar's end facility comprises
---caller computer gentle words machines (SOFTPHONE)
---soft switching server (SWITCH)
---network address transducer (NAT)
---be positioned at the outer voice tunnels server (iShuttle) of Internet bar's fire compartment wall
Caller computer gentle words machine connects soft switching server by data wire, and soft switching server connects the network address transducer by data wire, and the network address transducer is by the broadband access Internet; Simultaneously caller computer gentle words machine also connects by data wire and is positioned at Internet bar's outer voice tunnels server of wall of setting fire, and the voice tunnels server is by the broadband access Internet.The destination facility comprises
---IP gateway
---local side management message accounting
---switch
---called IP phone or substation
One termination Internet of IP gateway, the other end connects switch by digital trunk, and switch connects called IP phone or connects called subscriber's phone by the PSTN net, and local side management message accounting connects IP gateway.
This system's operating procedure is as follows:
(1) caller computer gentle words prow is set up control connection with voice tunnels server (iShuttle) earlier; The voice tunnels server distributes the sending and receiving port and sets up the sending and receiving port and the mapping relations of caller computer for this caller computer, makes the IP address of voice tunnels server and port become the foundation of caller computer gentle words machine and the conversation of outside called phone and keep employed address.
(2) caller computer gentle words machine is dialed the called phone number, and call information is delivered to soft switching server by data wire, the request of making a call.
(3) soft switching server is sent to the management accounting server to the caller and the called data message that receive by data wire.
(4) the management accounting server compares authentication with corresponding storage data in caller data message and its data storehouse, and will return to soft switching server by comparing the authentication result data message.
(5) soft switching server will enter the Internet through the network address transducer by the called phone number data information that the caller computer gentle words machine of authentication is dialed, and be transferred to called IP phone gateway (being operator's IP phone gateway), make a call.
(6) called IP phone gateway is by the switch called phone that continues, behind the called phone off-hook, voice tunnels server (iShuttle) is when getting in touch by external network and called phone, utilize mapping table to finish and caller computer gentle words machine exchange data information, thereby make caller computer gentle words machine and called phone connect both sides' intercommunication speech data information.
The present invention further improves, and also comprises Internet bar's end management message accounting.This management message accounting connects soft switching server by data wire, after the speech data information of technique scheme exchanges,
(7) soft switching server monitoring on-hook information, when side's on-hook of both call sides, soft switching server produces the call bill data information of the time that comprises this conversation, and sends it to the management accounting server.
(8) the management accounting server is according to the accurate expense of the call bill data information output conversation of soft switching server, as the foundation to user's charge.
The sixty-four dollar question that uses IP phone to solve in the Internet bar that above technical scheme realizes is exactly how passing fire wall/network address transducers (NAT) of ip voice data.
Usually, the operator of network and enterprise are not influenced by the attack of external network in order to protect inner computer, all disposed fire compartment wall.This class fire compartment wall can limit type of data packet and the flow (this qualification can be simple regular based on source IP address, purpose IP address or port numbers etc.) that enters in the net.The qualification of more complicated rule (as: FTP, HTTP) then need be analyzed the upper-layer protocol of OSI on fire compartment wall, therefore pay the cost on the performance.On fire compartment wall, set signaling flow by very simple, for example will guarantee that the signaling of SIP is passed through, only need on fire compartment wall, to open 5060 ports and get final product; For agreement H.323, needing open port be 1718 or 1719 (being sent to gatekeeper's the used port of RAS message), 1720 (the used ports of call-signaling message).But such setting can not intactly solve the problem that VoIP uses passing fire wall, and main cause is that the Media Stream of voice need transmit by Real-time Transport Protocol, and transmits needed source port and destination interface is dynamically to determine.Therefore can't finish by the simple setting on the fire compartment wall.
Along with the rapid expanding of Internet, the IPv4 address space will be in the circumstances that seriously exhausts.For addressing this problem, people have designed network address transducer (NAT).NAT is the border that places between two nets, and its function is that the address that the visible IP of outer net address and Intranet is used is shone upon mutually, like this, and the IP address (192.168.x.x) of the reusable particular range of each shielded Intranet, and these addresses are not used in public network.The packet that contains public network address information that comes from outer net arrives NAT earlier, and NAT uses the rule (its constituent element comprises source address, source port, destination address, destination interface, agreement) that presets to revise packet, and then is transmitted to the Intranet receiving station.Also must pass through such conversion process for the packet that flows out Intranet.From fail safe, means of net topology were brought huge trouble but also use to VoIP in NAT provided and externally hidden.Agreement (H.323, SIP) message bag generally is embedded IP address and a port numbers in particular section, rather than is placed on IP packet header, and iff using NAT, IP in the agreement and port numbers can not be pointed to correct place like this.Though can utilize ALG similar techniques seeking solutions such as (ALG), at this employing H.323 be the agreement of ASN.1 PER coded format, need the very high cost of payment.Main flow speech communication software on the present Internet, Netmeeting, Net2Phone do not support passing fire wall and NAT.
Understand according to the applicant, nearly all Internet bar has all used NAT to make tens PC share 1 broadband connection unlimitedly, and under this environmental condition, carrying out audio call (hereinafter to be referred as VoIP) by Internet or IP network can't operate as normal.And the operator that broadband access is provided often also is provided with equipment such as NAT at the local side that inserts for many-sided considerations such as safety and saving resource needs.
On the domestic market the voice tunnels server of public offering (for example Polaris softcom limited provide iShuttle) adopt patented technologies (application number 02137822) such as virtual protocol and IP tunnel, for using, VoIP set up bridge one, make each client's call signaling at first be sent to voice tunnels server iShuttle by virtual protocol, again by this server forwards to purpose client's computer.Same Media Stream also transmits by this tunneling technique, realizes both sides' conversation.Therefore can solve the problem that VoIP uses passing fire wall/network address transducer (NAT).
In the technical scheme of the present invention, to be arranged in voice tunnels server outside Internet bar's fire compartment wall and other hardware organic assembling of system, and co-ordination, get final product ingenious mapping relations, make the IP address of voice tunnels server and port become the foundation of caller computer gentle words machine and the conversation of outside called phone and keep employed address by voice tunnels server and caller computer gentle words machine.Like this, the voice tunnels server that is positioned at outside Internet bar's fire compartment wall promptly can freedom and the external network contact, can utilize the data information exchange of mapping table realization and caller computer gentle words machine again, thereby played the function served as bridge that inside and outside voice messaging exchanges, the caller computer gentle words machine in the Internet bar that makes can be set up communication contact by the Internet and called phone unblockedly, rationally and has dexterously solved the problem of passing through the wall of setting fire.
After adopting this programme to set up the IP supermarket, the operator of Internet bar only needs installation system software just can commence business, and does not need additional investment hardware device and Internet resources.Therefore investment economy, and because this scheme of employing has better cost advantage, therefore can under equal conditions provide more preferential price to the user, this main location client concerning the IP supermarket are the Price Sensitive type client, have competitive advantage.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the system schematic of existing IP supermarket implementation one.
Fig. 2 is the system schematic of existing IP supermarket implementation two.
Fig. 3 is the system configuration schematic diagram of one embodiment of the invention.
Embodiment
Embodiment one
The net bar IP phone supermarket system of present embodiment as shown in Figure 3, Internet bar's end facility of this system is some caller computer gentle words machine SOFTPHONE (being taken on by original PC in the Internet bar), soft switching server SWITCH (in the present embodiment adopt homemade SS300 type), network address transducer NAT (adopting homemade F220 type in the present embodiment), voice tunnels server iShuttle (the I50 type that present embodiment adopts Polaris softcom limited to produce), Internet bar's end management message accounting (present embodiment adopts homemade AA800 type).Wherein caller computer gentle words machine and management message accounting connect soft switching server by data wire respectively, and soft switching server connects the network address transducer by data wire, and the network address transducer is by the broadband access Internet.Simultaneously caller computer gentle words machine also connects by data wire and is positioned at Internet bar's outer voice tunnels server of wall of setting fire, and the voice tunnels server is by the broadband access Internet.
The destination facility of this system is IP gateway (adopting homemade 8010 types in the present embodiment), local side management message accounting (present embodiment adopts homemade 3000 types), switch (present embodiment adopts the S200 of Siemens Company type), called IP phone or substation.A termination Internet of IP gateway wherein, the other end connects switch by digital trunk, and switch connects called IP phone or connects called subscriber's phone by the PSTN net, and local side management message accounting connects IP gateway.
When system moves:
(1) before caller computer gentle words machine makes a call, at first sets up a control connection with voice tunnels server (iShuttle); And the voice tunnels server is that this caller computer gentle words machine distributes two available ports, and sending and receiving are a port respectively, and sets up the mapping relations of these two ports and caller computer; Later on the IP address of voice tunnel server and port as the foundation of caller computer gentle words machine after this and the conversation of outside called phone with keep employed address, voice tunnels server by utilizing mapping table responsible with caller computer exchange data information.
(2) caller computer gentle words machine is dialed the called phone number, and call information is delivered to soft switching server by data wire, the request of making a call.
(3) soft switching server is sent to the management accounting server to the caller and the called data message that receive by data wire.
(4) the management accounting server compares authentication with corresponding storage data in caller data message and its data storehouse, and will return to soft switching server by comparing the authentication result data message.
(5) soft switching server will enter the Internet through network address transducer/router by the called phone number data information that the caller computer gentle words machine of authentication is dialed, and be transferred to called IP phone gateway (being operator's IP phone gateway), make a call.
(6) called IP phone gateway is by the switch called phone that continues, behind the called phone off-hook, the voice tunnels server is when getting in touch by external network and called phone, utilize mapping table to finish and caller computer gentle words machine exchange data information, thereby caller computer gentle words machine and called phone are connected, both sides adopt international standards H.323 or Session Initiation Protocol intercommunication speech data information.
(7) soft switching server monitoring on-hook information, when side's on-hook of both call sides, soft switching server produces the call bill data information of time in again that comprises this conversation, and sends it to the management accounting server.
(8) the management accounting server is according to the accurate expense of the call bill data information output conversation of soft switching server, as the foundation to user's charge.
H.323 or Session Initiation Protocol all relate to that the agreement of talking connection all adopts international standards in the above process, and when the user carries out two-stage dialing (as dialing extension number), system adopts the band in the agreement H.323 to transmit the mechanism of DTMF (dual-tone multifrequency) signal outward automatically.
As can be seen, present embodiment is by being arranged in the voice tunnels server outside Internet bar's fire compartment wall and the organic assembling of other hardware of system, co-ordination, mapping relations by voice tunnels server and caller computer gentle words machine, make the voice tunnels server when getting in touch freely with external network, utilize the data information exchange of mapping table realization and caller computer gentle words machine again, thereby in having played, the function served as bridge that foreign language message breath exchanges, the caller computer gentle words machine in the Internet bar that makes can be set up communication contact by the Internet and called phone unblockedly, thereby rationally and has dexterously solved the technical barrier that passes through the wall of setting fire.
Secondly, at calling the problem that needs 2 dialing often, present embodiment has adopted the band of agreement H.323 to transmit the mechanism of dtmf signal outward, has solved the problem that IP phone software can not 2 dialing of fine support (for example NetMeeting) like this.Because 2 dialing of phone generally all adopt double-audio signal (DTMF) to send number, because IP phone has adopted the technology of compress speech, may cause distortion to a certain degree, if the same dtmf signal that transmits of direct image black phone is easy to cause 2 dialing errors in speech channel.
In addition, the configuration of present embodiment software has the function of locking, makes general user to use and can't own disorderly revise.User side software is interface Windows software succinct, easy to use, makes the logical multimedia PC of a Daepori become IP phone.The user does not need training just should directly use this software to call.And user side software carries out work under professional operator's control, has only professional operator to allow the user to use on the management control panel, and the user could call by this software.
In a word, properly solved technical barriers such as Firewall Traversing, two-stage dialing because present embodiment is ingenious, therefore can in the Internet bar, set up the IP phone supermarket, and need not additional investment hardware device and Internet resources by installation system software.Like this, can under equal conditions provide more preferential conversation price, make the net bar IP phone supermarket become a kind of novel telecom operation method of service that is subjected to the operator of Internet bar and users' welcome to the user.
Claims (4)
1. operating method of net bar IP phone supermarket system, this system comprises Internet bar's end facility and destination facility; Internet bar's end facility comprises caller computer gentle words machine, soft switching server, network address transducer, is positioned at voice tunnels server, Internet bar's end management message accounting outside Internet bar's fire compartment wall; The destination facility comprises IP gateway, local side management message accounting, switch, called IP phone or substation; It is characterized in that: described caller computer gentle words machine and management message accounting connect soft switching server by data wire respectively, and soft switching server connects the network address transducer by data wire, and the network address transducer is by the broadband access Internet; Simultaneously caller computer gentle words machine also connects by data wire and is positioned at Internet bar's outer voice tunnels server of wall of setting fire, and the voice tunnels server is by the broadband access Internet; One termination Internet of described IP gateway, the other end connects switch by digital trunk, and switch connects called IP phone or connects called subscriber's phone by the PSTN net, and local side management message accounting connects IP gateway; This system's operating procedure is as follows:
(1) caller computer gentle words prow is set up control connection with the voice tunnels server earlier; The voice tunnels server distributes the sending and receiving port and sets up the sending and receiving port and the mapping relations of caller computer for this caller computer, makes the IP address of voice tunnels server and port become the foundation of caller computer gentle words machine and the conversation of outside called phone and keep employed address;
(2) caller computer gentle words machine is dialed the called phone number, and call information is delivered to soft switching server by data wire, the request of making a call;
(3) soft switching server is sent to the management accounting server to the caller and the called data message that receive by data wire;
(4) the management accounting server compares authentication with corresponding storage data in caller data message and its data storehouse, and will return to soft switching server by comparing the authentication result data message;
(5) soft switching server will enter the Internet through the network address transducer by the called phone number data information that the caller computer gentle words machine of authentication is dialed, and be transferred to called IP phone gateway, make a call;
(6) called IP phone gateway is by the switch called phone that continues, behind the called phone off-hook, the voice tunnels server is when getting in touch by external network and called phone, utilize mapping table to finish and caller computer gentle words machine exchange data information, thereby make caller computer gentle words machine and called phone connect both sides' intercommunication speech data information.
2. according to the described operating method of net bar IP phone supermarket system of claim 1, it is characterized in that: also comprise Internet bar's end management message accounting, this management message accounting connects soft switching server by data wire, in operating procedure (1)---and after (6), carry out following operation:
(7) soft switching server monitoring on-hook information, when side's on-hook of both call sides, soft switching server produces the call bill data information of time in again that comprises this conversation, and sends it to the management accounting server;
(8) the management accounting server is according to the accurate expense of the call bill data information output conversation of soft switching server, as the foundation to user's charge.
3. according to claim 1 or 2 described operating method of net bar IP phone supermarket system, it is characterized in that: the agreement of talking connection adopt international standards H.323 or Session Initiation Protocol,
4. according to claim 1 or 2 described operating method of net bar IP phone supermarket system, it is characterized in that: when the user carried out two-stage dialing, system adopted the band in the agreement H.323 to transmit the mechanism of dtmf signal outward automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021383456A CN1486077A (en) | 2002-09-27 | 2002-09-27 | Operating method of net bar IP phone supermarket system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021383456A CN1486077A (en) | 2002-09-27 | 2002-09-27 | Operating method of net bar IP phone supermarket system |
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| CN1486077A true CN1486077A (en) | 2004-03-31 |
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| CNA021383456A Pending CN1486077A (en) | 2002-09-27 | 2002-09-27 | Operating method of net bar IP phone supermarket system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007062578A1 (en) * | 2005-11-30 | 2007-06-07 | Huawei Technologies Co., Ltd. | A method and system for initiating call charging |
| CN100433677C (en) * | 2004-07-29 | 2008-11-12 | 张泽华 | Method for realizing networked phone, and device of networked phone |
| CN100440789C (en) * | 2004-06-08 | 2008-12-03 | 华为技术有限公司 | Gateway interconnection protocol supermarket system and gateway interconnection protocol supermarket charge metering method |
| CN1937688B (en) * | 2006-09-22 | 2011-04-06 | 华为技术有限公司 | Method for realizing calling |
| CN102571814A (en) * | 2012-02-10 | 2012-07-11 | 浙江宇视科技有限公司 | Method for traversing isolating equipment in IP monitoring system and proxy thereof |
-
2002
- 2002-09-27 CN CNA021383456A patent/CN1486077A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100440789C (en) * | 2004-06-08 | 2008-12-03 | 华为技术有限公司 | Gateway interconnection protocol supermarket system and gateway interconnection protocol supermarket charge metering method |
| CN100433677C (en) * | 2004-07-29 | 2008-11-12 | 张泽华 | Method for realizing networked phone, and device of networked phone |
| WO2007062578A1 (en) * | 2005-11-30 | 2007-06-07 | Huawei Technologies Co., Ltd. | A method and system for initiating call charging |
| CN100415009C (en) * | 2005-11-30 | 2008-08-27 | 华为技术有限公司 | Method of trigging call metering |
| CN1937688B (en) * | 2006-09-22 | 2011-04-06 | 华为技术有限公司 | Method for realizing calling |
| CN102571814A (en) * | 2012-02-10 | 2012-07-11 | 浙江宇视科技有限公司 | Method for traversing isolating equipment in IP monitoring system and proxy thereof |
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