CN101068230B - Method for realizing user exchanger in media gateway - Google Patents
Method for realizing user exchanger in media gateway Download PDFInfo
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- CN101068230B CN101068230B CN2007101094326A CN200710109432A CN101068230B CN 101068230 B CN101068230 B CN 101068230B CN 2007101094326 A CN2007101094326 A CN 2007101094326A CN 200710109432 A CN200710109432 A CN 200710109432A CN 101068230 B CN101068230 B CN 101068230B
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Abstract
A method for realizing user exchange in media gateway includes judging that user is user of user small exchange by access gateway master control system with PBX function when the first user picks up receiver then sending dial sound to the first user and connecting number receiver, judging that this time of call is internal line call or external line call by said access gateway master control system when dialing operation is carried out by the first user and executing relevant operation according to that this time of call is internal line call or external line call.
Description
Technical field
The present invention relates to Next Generation Telecommunication Networks network (Next Generation Network, NGN) field more specifically, relates to a kind of at media gateway (Access Gateway, AG) realize subscriber exchange (Private Branch eXchange, method PBX) in.
Background technology
PBX in traditional PSTN network (public switched telephone network, Public SwitchedTelephone Network) is the small-sized switching equipment that company or tissue have, and it is not to be had and operated by telecom operators.PBX is a forward call between the enterprises local line user, yet but allows them to enjoy the external call circuit of some.The main purpose of PBX is to save the circuit cost of use of paying to telecom operators for each user.PBX generally provides E1 interface at network side.Yet, when traditional PSTN network during gradually to the evolution of NGN network, TG (Tandem Gateway, Trunk Gateway) equipment is for compatible PSTN equipment, the access that must provide similar interface could satisfy PBX, in the epoch of full NGN network, TG equipment and E1 interface will be substituted by the IP interface gradually.So, in the NGN network, need provide a kind of PBX equipment based on the IP interface.
In the NGN network, (soft switch SoftSwitch) can provide Centrex (centralized private branch exchange) business to nucleus equipment SS, and Centrex utilizes the existing switch device of telecommunication department, and the communication service of similar PBX is provided for the user.The Centrex business is controlled by telecom operators fully, and each user must distribute a public network telephone number, and the resource of checking numbers is a kind of waste.Also have, need open Centrex when professional, concerning SS, just need to safeguard huge database, and operational efficiency is brought influence when a large amount of families or small office.
In the NGN architectural framework, access device AG can provide business such as IP-based voice, modem and fax under SS control.But AG only is a controlled plant, and it, can't be used as PBX and use all from the instruction of SS all operations of subscribers feeder, promptly can't be finished by AG oneself calling between the AG internal user, and the calling of AG outside is carried out under the control of SS.
Thereby, be badly in need of a kind of scheme, can in IAD, realize the subscriber exchange function.
Summary of the invention
At the defective that exists in the above-mentioned background technology, the invention provides a kind of method that in media gateway, realizes subscriber exchange, it is equally applicable to middle-size and small-size access device of NGN network such as IAD (integrated access equipment, Integrated Access Device).
One aspect of the present invention provides a kind of method that realizes subscriber exchange in media gateway, it can may further comprise the steps: step 1, when first user's off-hook, IAD (Access Gateway with PBX function with PBX function, PAG) master control system is judged when the user is the private branch exchange user, send dialing tone to first user, and connect digit receiver; Step 2, first user carries out dial-up operation, and the PAG master control system is dialled the number that cries according to first user and is judged that this calling is internal call or External Call; And step 3, be that corresponding operation is carried out in internal call or External Call according to this calling.
If in step 2, the PAG master control system judges that this calling is internal call, and then step 3 comprises following processing: by the second private branch exchange internal user of the corresponding number of database lookup; The PAG master control system is given the second private branch exchange internal user ring, puts ring-back tone for first user; The second private branch exchange internal user off-hook, PAG master control system stop to stop to put ring-back tone to first user to the second private branch exchange internal user ring, and connect the speech channel of first user and the second private branch exchange internal user; And first the either party's on-hook in user or the second private branch exchange internal user, the PAG master control system is removed speech channel, send busy tone to the opposing party, and after the opposing party's on-hook, stops to put busy tone.
In addition, if in step 2, the PAG master control system judges that the first place of first number user calling is an outgoing prefix, judges that then this calling is External Call, then step 3 comprises following processing: the PAG master control system is applied for a free subscriber in Virtual User, and with first user binding; The PAG master control system reports the off-hook information of free subscriber to soft switch, and finishes the calling to the outside line user under the control of soft switch; Behind the outside line user off-hook, under the control of soft switch, first user and called subscriber set up the conversation speech channel; And first the either party's on-hook among user or the outside line user, the PAG master control system is removed speech channel under the control of soft switch, send busy tone to the opposing party, and after the opposing party's on-hook, stops to put busy tone.
The various command at free subscriber that soft switch is assigned is the operation to first user in PAG master control system internal conversion.
Another aspect of the present invention also provides a kind of method that realizes subscriber exchange in media gateway, and it may further comprise the steps: step 1, PAG master control system receive the Inbound Calls from the outside line user under the control of soft switch; Step 2, the PAG master control system is replied the Virtual User of a free time to soft switch, and accepts the ring order to first Virtual User; Step 3, the PAG master control system is reported the Virtual User off-hook to soft switch, and sets up conversation with the outside line user; Step 4, after the outside line subscriber dialing, the number that the analysis of PAG master control system is received finds corresponding private branch exchange internal user by database; Step 5, PAG master control system be to the ring of private branch exchange internal user, and send ring-back tone to the outside line user; Step 6, behind the private branch exchange internal user off-hook, the PAG master control system stops ring, and stops to send ring-back tone, and outside line user and private branch exchange internal user are set up conversation; And step 7, the either party's on-hook among private branch exchange internal user or the outside line user, the PAG master control system is removed speech channel.
In step 3, the Media Stream of Virtual User is connected to the voice suggestion of PAG inside, dials extension to the outside line user prompt, and will be connected to the digit receiver of PAG inside from outside line user's Media Stream.
Also comprise following processing in the step 7: under soft switch control, send busy tone to the opposing party, and after the opposing party's on-hook, stop to put busy tone.
IAD provided by the present invention is realized the method for PBX function, can effectively save the outside line key resource.Simultaneously, owing to adopt the general IP interface of AG at network side, BX compares with conventional P, has reduced the E1 interface cost.And can in full NGN network environment, use.Also have, the calling in PAG inside does not take the voip channel resource, has improved voice quality, has reduced equipment cost.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the system group network schematic diagram between PAG equipment and the SS;
Fig. 2 is according to the flow chart of the method for subscriber exchange that realizes in media gateway of first aspect present invention;
Fig. 3 is the flow chart according to the method for subscriber exchange that realizes in media gateway of second aspect present invention;
Fig. 4 is the flow chart of PBX user's Internal call success process;
Fig. 5 is the breathe out flow chart of successful process of PBX user outline; And
Fig. 6 is the flow chart of PBX user outline incoming call success process.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
For avoiding confusion, before describing the inventive method, earlier term is defined:
Accessing gateway equipment in the AG:NGN network comprises IAD equipment; And
PAG: having the gateway of PBX function, is the AG equipment of having used the inventive method.
In the present invention, the PAG user side interface is divided into three classes, and first kind user interface is domestic consumer's interface, and its functional equivalent is in the user interface of AG.Such user's straight line exhalation incoming call does not have the PBX function.
The second class user is PBX user, and such user is assigned with independently extension, and the calling between the PBX user can be finished by dialing extension.The PBX user outline is called out by dialing outgoing prefix, adds group PSTN public network number again and carries out.Outside line customer call PBX user can dial the Indicating Number of PBX or dial the outside line key of distributing to this PBX, adds to dial extension again.
The 3rd class user is a Virtual User, and for PAG, this class user does not have real subscribers feeder, but for SS, this class user is registered on the SS truly, and is assigned with independently PSTN public network number.The 3rd class user is actual to be exactly the second class PBX user's outside line number, and when such user formed hunt group on SS, the incoming call of outside line can directly be dialed pilot number and be finished.
The 3rd class user has PSTN public network number, but does not have real subscribers feeder; The second class user has real subscribers feeder, but does not have PSTN public network number.When concrete work, the second class user need bind with the 3rd class user, and the user after the binding had both had PSTN public network number, had real subscribers feeder again, and such user just can carry out intercommunication with other users of PSTN public network.
Method of the present invention has realized Internal call function and the call-in and call-out functions between the second class PBX user.
Fig. 1 is the system group network schematic diagram between PAG equipment and the SS.As shown in Figure 1, PAG equipment links to each other by the IP interface physically with SS, and the dotted line between PAG equipment and the SS is illustrated in the user port that SS goes up actual registered.In first kind user group, each real subscribers feeder port is registered among the SS; In the second class PBX user, each real subscribers feeder port is not registered among the SS, and the 3rd class Virtual User port is registered among the SS.The PBX user port is more than the Virtual User port.When PBX user carried out the outside line incoming call or breathes out, the PBX user port need be bound with Virtual User.
Fig. 2 is according to the flow chart of the method for subscriber exchange that realizes in media gateway of first aspect present invention.As shown in Figure 2, this method may further comprise the steps:
Step S202, when first user's off-hook, the PAG master control system is judged when the user is the private branch exchange user, send dialing tone to first user, and connects digit receiver;
Step S204, first user carries out dial-up operation, and the PAG master control system is dialled the number that cries according to first user and is judged that this calling is internal call or External Call; And
Step S206 is that corresponding operation is carried out in internal call or External Call according to this calling.
If in step S204, the PAG master control system judges that this calling is internal call, and then step S206 comprises following processing: by the second private branch exchange internal user of the corresponding number of database lookup; The PAG master control system is given the second private branch exchange internal user ring, puts ring-back tone for first user; The second private branch exchange internal user off-hook, PAG master control system stop to stop to put ring-back tone to first user to the second private branch exchange internal user ring, and connect the speech channel of first user and the second private branch exchange internal user; And first the either party's on-hook in user or the second private branch exchange internal user, the PAG master control system is removed speech channel, send busy tone to the opposing party, and after the opposing party's on-hook, stops to put busy tone.
In addition, if in step S204, the PAG master control system judges that the first place of first number user calling is an outgoing prefix, judges that then this calling is External Call, then step S206 comprises following processing: the PAG master control system is applied for a free subscriber in Virtual User, and with first user binding; The PAG master control system reports the off-hook information of free subscriber to soft switch, and finishes the calling to the outside line user under the control of soft switch; Behind the outside line user off-hook, under the control of soft switch, first user and called subscriber set up the conversation speech channel; And first the either party's on-hook among user or the outside line user, the PAG master control system is removed speech channel under soft switch control, send busy tone to the opposing party, and after the opposing party's on-hook, stop to put busy tone.
The various command at free subscriber that soft switch is assigned is the operation to first user in PAG master control system internal conversion.
Fig. 3 is the flow chart according to the method for subscriber exchange that realizes in media gateway of second aspect present invention.As shown in Figure 3, this method may further comprise the steps:
Step S302, the PAG master control system receives the Inbound Calls from the outside line user under the control of soft switch;
Step S304, the PAG master control system is replied the Virtual User of a free time to soft switch, and accepts the ring order to first Virtual User;
Step S306, the PAG master control system is reported the Virtual User off-hook to soft switch, and sets up conversation with the outside line user;
Step S308, after the outside line subscriber dialing, the number that the analysis of PAG master control system is received finds corresponding private branch exchange internal user by database;
Step S310, the PAG master control system is to the ring of private branch exchange internal user, and send ring-back tone to the outside line user;
Step S312, behind the private branch exchange internal user off-hook, the PAG master control system stops ring, and stops to send ring-back tone, and outside line user and private branch exchange internal user are set up conversation; And
Step S314, the either party's on-hook among private branch exchange internal user or the outside line user, the PAG master control system is removed speech channel.
In step S306, the Media Stream of Virtual User is connected to the voice suggestion of PAG inside, dials extension to the outside line user prompt, and will be connected to the digit receiver of PAG inside from outside line user's Media Stream.
Also comprise following processing among the step S314: under soft switch control, send busy tone to the opposing party, and after the opposing party's on-hook, stop to put busy tone.
Fig. 4 is the flow chart of PBX user's Internal call success process, and Fig. 5 is the breathe out flow chart of successful process of PBX user outline, and Fig. 6 is the flow chart of PBX user outline incoming call success process.Describe PBX user's service call flow process in detail below with reference to Fig. 4 to Fig. 6.
When PBX user A called out PBX internal user B, business process map was referring to Fig. 4.When the PBX user A of PAG as caller, the PAG unit send dialing tone to user A after detecting user's off-hook event, and is connected to digit receiver simultaneously.After the user A dialing, the number that the PAG device analysis is received if analyze successfully, send ring-back tone then to called subscriber's ring, and to the calling subscriber.Behind called subscriber's off-hook, PAG stops the ring to the called subscriber, stops to send ring-back tone to the calling subscriber, and sets up voice channel, and both sides enter talking state.Behind the end of conversation, either party first on-hook, PAG detects on-hook signal, dismantling call, and send busy tone to the opposing party.After the opposing party's on-hook, end of calling.
When PBX user C called out the outside line user, business process map was referring to Fig. 5.When the PBX user C of PAG as caller, the PAG unit send dialing tone to user C after detecting user's off-hook event, and is connected to digit receiver simultaneously.After the user C dialing, the number that the PAG device analysis is received if judge it is the outside line outgoing call according to the first number, then continues to collect the digits, and the idle Virtual User resource of application supposes that the Virtual User of applying for is D, then sets up the binding relationship of C and D simultaneously.PAG calls out the called subscriber with the identity of user D to SS then.When SS order when user D send dialing tone and collects the digits, because the action that collects the digits of user C carries out, so directly number that C dialled is reported SS with the identity of D.SS is then to called terminal ringing, and order is sent ring-back tone to user D, and the user C that PAG is actually to the D binding send ring-back tone.Equally, behind the called off-hook, SS order user D and called subscriber set up conversation, and PAG is actually to allow and sets up conversation between calling subscriber C and the called subscriber.Behind the end of conversation, either party first on-hook, after on-hook signal reports SS, dismantling call under SS control, and send busy tone to the opposing party.After the opposing party's on-hook, end of calling.
When the incoming call of PBX user outline, business process map is referring to Fig. 6.The outside line user is by the Virtual User E of SS calling PAG, and PAG is to the E ring in the SS order, because E is a Virtual User, so PAG only is after applying for media resource, directly reports the off hook signal of E to SS.Under the control of SS, E and calling subscriber set up conversation, and the calling subscriber has heard the suggestion voice that requests extension number, and the dialing of calling subscriber in voice channel received by the digit receiver of PAG, and analyzed real called extension.PAG send ring-back tone to the far-end calling subscriber to real called minute power ringing in voice channel.Behind the called off-hook, calling subscriber and called PBX extension set are set up conversation under the control of PAG.Behind the end of conversation, either party first on-hook, after on-hook signal reports SS, dismantling call under SS control, and send busy tone to the opposing party.After the opposing party's on-hook, end of calling.
In sum, adopt the present invention, can effectively save the outside line key resource.Simultaneously, owing to adopt the general IP interface of AG at network side, BX compares with conventional P, has reduced the E1 interface cost.And can in full NGN network environment, use.Also have, the calling in PAG inside does not take the voip channel resource, has improved voice quality, has reduced equipment cost.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a method that realizes subscriber exchange in media gateway is characterized in that, may further comprise the steps:
Step 1, when first user's off-hook, the IAD master control system with PBX function is judged when described user is the private branch exchange internal user, send dialing tone to described first user, and connects digit receiver;
Step 2, described first user carries out dial-up operation, and the IAD master control system of the described PBX of having function is dialled the number that cries according to described first user and is judged that this calling is internal call or External Call; And
Step 3 is that corresponding operation is carried out in internal call or External Call according to described this calling.
2. method according to claim 1 is characterized in that, if in described step 2, the IAD master control system of the described PBX of having function judges that this calling is described internal call, and then described step 3 comprises following processing:
The second private branch exchange internal user by the corresponding described number of database lookup;
Described IAD master control system with PBX function is given the described second private branch exchange internal user ring, puts ring-back tone for described first user;
The described second private branch exchange internal user off-hook, the IAD master control system of the described PBX of having function stops to the described second private branch exchange internal user ring, stop to put ring-back tone, and connect the speech channel of described first user and the described second private branch exchange internal user to described first user; And
Either party's on-hook in described first user or the described second private branch exchange internal user, the IAD master control system of the described PBX of having function is removed described speech channel, send busy tone to the opposing party, and after the opposing party's on-hook, stops to put busy tone.
3. method according to claim 1, it is characterized in that, if in described step 2, the IAD master control system of the described PBX of having function judges that the first place of described first number user calling is an outgoing prefix, judge that then this calling is described External Call, then described step 3 comprises following processing:
Described IAD master control system with PBX function is applied for a free subscriber in Virtual User, and with described first user binding;
The IAD master control system of the described PBX of having function reports the off-hook information of described free subscriber to soft switch, and finishes the calling to the outside line user under the control of described soft switch;
Behind the described outside line user off-hook, under the control of described soft switch, described first user and described called subscriber set up the conversation speech channel; And
Either party's on-hook among described first user or the described outside line user, the IAD master control system of the described PBX of having function is removed described speech channel, send busy tone to the opposing party, and after the opposing party's on-hook, stops to put busy tone.
4. method according to claim 3 is characterized in that, the various command at described free subscriber that described soft switch is assigned is the operation to described first user in the IAD master control system internal conversion of the described PBX of having function.
5. a method that realizes subscriber exchange in media gateway is characterized in that, may further comprise the steps:
Step 1, the IAD master control system with PBX function receives the Inbound Calls from the outside line user under the control of soft switch;
Step 2, the Virtual User that described IAD master control system with PBX function replys a free time for described soft switch, and acceptance is to the ring order of described first Virtual User;
Step 3, the IAD master control system of the described PBX of having function is reported described Virtual User off-hook to described soft switch, and sets up conversation with described outside line user, points out described outside line subscriber dialing;
Step 4, after the described outside line subscriber dialing, the number that the IAD master control system analysis of the described PBX of having function is received finds corresponding private branch exchange internal user by database;
Step 5, described IAD master control system with PBX function be to the ring of described private branch exchange internal user, and send ring-back tone to described outside line user;
Step 6, behind the described private branch exchange internal user off-hook, the IAD master control system of the described PBX of having function stops ring, and stops to send ring-back tone to described outside line user, and described outside line user and described private branch exchange internal user are set up conversation; And
Step 7, the either party's on-hook among described private branch exchange internal user or the described outside line user, described IAD master control system with PBX function is removed speech channel.
6. method according to claim 5, it is characterized in that, in described step 3, the Media Stream of described Virtual User is connected to the voice suggestion of the IAD inside of the described PBX of having function, dial extension to described outside line user prompt, and will be connected to the digit receiver of the IAD inside of the described PBX of having function from described outside line user's Media Stream.
7. method according to claim 5 is characterized in that, in described step 7, also comprises following processing:
Under soft switch control, send busy tone to the opposing party, and after the opposing party's on-hook, stop to put busy tone.
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| CN2007101094326A CN101068230B (en) | 2007-06-21 | 2007-06-21 | Method for realizing user exchanger in media gateway |
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| CN2007101094326A CN101068230B (en) | 2007-06-21 | 2007-06-21 | Method for realizing user exchanger in media gateway |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105630826B (en) * | 2014-11-04 | 2020-07-03 | 中兴通讯股份有限公司 | Object identifier analysis method and root domain system |
| CN106331384A (en) * | 2015-06-19 | 2017-01-11 | 中兴通讯股份有限公司 | Media channel test method and device |
| CN107592265A (en) * | 2017-09-22 | 2018-01-16 | 深圳市亘强科技有限公司 | A kind of cooperation management system and routing device |
| CN109831568B (en) * | 2019-03-27 | 2021-04-27 | 苏州工业园区服务外包职业学院 | Method and system for configuring number list for intelligent access gateway |
| CN110971768B (en) * | 2019-12-06 | 2020-12-25 | 深圳震有科技股份有限公司 | SIP call processing method and system, computer equipment and medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354591A (en) * | 2000-11-22 | 2002-06-19 | 松下电器产业株式会社 | User switchboard system, user switchboard and communication method of user switchboard system |
| CN1633187A (en) * | 2003-12-22 | 2005-06-29 | 华为技术有限公司 | Communication system based on subscriber small switch and method for realizing communication thereof |
| EP1650939A1 (en) * | 2003-07-29 | 2006-04-26 | Softbank BB Corp. | Gateway device, private branch exchange system, and private branch exchange method |
-
2007
- 2007-06-21 CN CN2007101094326A patent/CN101068230B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354591A (en) * | 2000-11-22 | 2002-06-19 | 松下电器产业株式会社 | User switchboard system, user switchboard and communication method of user switchboard system |
| EP1650939A1 (en) * | 2003-07-29 | 2006-04-26 | Softbank BB Corp. | Gateway device, private branch exchange system, and private branch exchange method |
| CN1633187A (en) * | 2003-12-22 | 2005-06-29 | 华为技术有限公司 | Communication system based on subscriber small switch and method for realizing communication thereof |
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