CN102685341B - Voice over Internet protocol (VOIP) call method and system - Google Patents
Voice over Internet protocol (VOIP) call method and system Download PDFInfo
- Publication number
- CN102685341B CN102685341B CN201210133848.2A CN201210133848A CN102685341B CN 102685341 B CN102685341 B CN 102685341B CN 201210133848 A CN201210133848 A CN 201210133848A CN 102685341 B CN102685341 B CN 102685341B
- Authority
- CN
- China
- Prior art keywords
- voip
- call
- voice account
- voip call
- programme
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Telephonic Communication Services (AREA)
Abstract
The invention discloses a voice over Internet protocol (VOIP) call method, which comprises the following steps of: registering a stored program control exchanged voice account of a called party of a VOIP call; setting a binding relationship between the registered stored program control exchanged voice account of the called party of the VOIP call and a VOIP voice account of the called party of the VOIP call; when the VOIP call is interrupted, initiating a call to the stored program control exchanged voice account of the called party of the VOIP call; and establishing call connection between a VOIP voice account of a calling party of the VOIP call and the stored program control exchanged voice account of the called party of the VOIP call. In addition, the invention also discloses a VOIP call system, which comprises a stored program control exchange, a server and a VOIP call controller. By the VOIP call method and the VOIP call system, under the condition of VOIP call interruption caused by the called party of the VOIP call, the calling party of the VOIP call is only required to hold on for a certain time, and then the call can be continued.
Description
Technical field
The present invention relates to VOIP communicating tech field, particularly relate to a kind of VOIP call method and a kind of VOIP phone system.
Background technology
Along with popularizing of VOIP technology, more and more enterprises and individuals users wish to realize voice communication by means of VOIP technology.Because VOIP technical costs is cheap, VOIP business has powerful development potentiality.But when carrying out the user of VOIP call while breaking down, call will be interrupted.Particularly at present a lot of situations are to carry out VOIP call by means of WIFI network, and the possibility that makes VOIP call occur to interrupt increases greatly.When being in the terminal of WIFI and being VOIP call calling party, calling party can be according to the reply before calling out of the RST of WIFI, but when the terminal of WIFI is VOIP call callee, due to calling party and do not know callee's situation, dropped calls at this moment can cause poor business experience to the VOIP calling party that converses.
At present, the VOIP dropped calls problem for being caused by VOIP call callee, does not also have effective Technical Solving, is generally that VOIP call callee takes to inform orally calling party's mode in the situation that precognition call can be interrupted.Thereby current urgent need is a kind of can be conversed after call drop occurs callee and automatically realize the scheme that continues call at VOIP.
Summary of the invention
For solving the problem of above-mentioned existence, the invention provides a kind of VOIP call method and a kind of VOIP phone system.
A VOIP call method, comprises the following steps:
Registration VOIP call callee's programme-controlled exchange voice account;
Converse callee's VOIP voice account of the programme-controlled exchange voice account that the VOIP call callee who registers is set and VOIP is binding relationship;
When VOIP dropped calls, to VOIP call callee's programme-controlled exchange voice account, make a call;
The call of setting up between VOIP call calling party's VOIP voice account and VOIP call callee's programme-controlled exchange voice account is connected.
Compare with general technology, by VOIP call method provided by the present invention, can because of VOIP call callee, break down cause VOIP dropped calls in the situation that, VOIP call calling party only needs to keep just can realize continuation call after Call Waiting a period of time, overcome in the unwitting situation of VOIP call calling party, because the poor problem of business experience that call drop causes to VOIP call calling party occurs VOIP call callee.
A VOIP phone system, comprises stored-program control exchange, service server and VOIP call controller;
Described stored-program control exchange is for registering VOIP call callee's programme-controlled exchange voice account;
Described service server is used for arranging the VOIP call callee's who registers programme-controlled exchange voice account and VOIP call callee's VOIP voice account is binding relationship;
Described VOIP call controller is for when VOIP dropped calls, to converse callee's programme-controlled exchange voice account of VOIP, makes a call; And the call of setting up between VOIP call calling party's VOIP voice account and VOIP call callee's programme-controlled exchange voice account is connected.
Compare with general technology, by VOIP phone system provided by the present invention, can because of VOIP call callee, break down cause VOIP dropped calls in the situation that, VOIP call calling party only needs to keep just can realize continuation call after Call Waiting a period of time, overcome in the unwitting situation of VOIP call calling party, because the poor problem of business experience that call drop causes to VOIP call calling party occurs VOIP call callee.
Accompanying drawing explanation
Fig. 1 is the schematic flow diagram of VOIP call method of the present invention;
Fig. 2 is the structural representation of VOIP phone system of the present invention;
Fig. 3 is the embodiment that VOIP call callee applies VOIP phone system of the present invention during based on WIFI network environment.
Embodiment
For further setting forth the technological means that the present invention takes and the effect obtaining, below in conjunction with accompanying drawing and preferred embodiment, to VOIP call method proposed by the invention and the technical scheme of system thereof, know and complete description.
Referring to Fig. 1, is the schematic flow diagram of VOIP call method of the present invention.The present invention dispatches the order method of rehearsing and comprises the following steps:
S101 registration VOIP call callee's programme-controlled exchange voice account;
The call of carrying out between the VOIP voice account that VOIP call is VOIP call callee and VOIP call calling party's VOIP voice account.Described VOIP call callee's VOIP voice account can be registered by VOIP call controller, and by WIFI network insertion IP network, carries out VOIP call with VOIP call calling party's VOIP voice account.
Outside VOIP call callee's VOIP voice account, registration VOIP call callee's programme-controlled exchange voice account.Be different from the VOIP voice account that relies on IP network access, programme-controlled exchange voice account can be carried out voice call by TDM network.
The VOIP call callee's who registers programme-controlled exchange voice account is set S102 and VOIP call callee's VOIP voice account is binding relationship;
After registration VOIP call callee's programme-controlled exchange voice account, the VOIP call callee's of registration programme-controlled exchange voice account and VOIP call callee's VOIP voice account need to be bound.
Described binding relationship can arrange by service server.
S103, when VOIP dropped calls, makes a call to VOIP call callee's programme-controlled exchange voice account;
In this step, can, in real time to VOIP call callee's VOIP voice account transmission detection signaling, judge whether VOIP call is interrupted.
For example, in VOIP call callee's terminal, break down, VOIP call callee's VOIP voice account call drop, or VOIP call callee loses in the situations such as WIFI access network signal, by detecting signaling, can judge VOIP dropped calls.
When VOIP dropped calls, whether the VOIP voice account that can first inquire about VOIP call callee has the programme-controlled exchange voice account of binding;
If Query Result, for there is no the programme-controlled exchange voice account of binding, is pressed received pronunciation call flow and is processed;
If Query Result is the programme-controlled exchange voice account that has binding, the VOIP voice account to VOIP call calling party sends the information keeping of calling out, and sends call signaling to VOIP call callee's programme-controlled exchange voice account.
Be provided with after VOIP call callee's VOIP voice account and the binding relationship of programme-controlled exchange voice account, when VOIP dropped calls, just can make a call to converse callee's programme-controlled exchange voice account of VOIP, also realize VOIP call callee is switched without the calling between voice account.
The call that S104 sets up between VOIP call calling party's VOIP voice account and VOIP call callee's programme-controlled exchange voice account is connected.
The call signaling that the programme-controlled exchange voice account to VOIP call callee can be sent in this step, is sent to gateway;
Above-mentioned call signaling is sent to stored-program control exchange from gateway;
Above-mentioned call signaling is sent to VOIP call callee's programme-controlled exchange voice account from stored-program control exchange;
VOIP call callee's programme-controlled exchange voice account receives after call signaling, and the call of setting up between VOIP call calling party's VOIP voice account and VOIP call callee's programme-controlled exchange voice account is connected.
The call of setting up between VOIP call calling party's VOIP voice account and VOIP call callee's programme-controlled exchange voice account is connected, and can be undertaken by following flow process:
VOIP call callee's programme-controlled exchange voice account sends feedback signaling to stored-program control exchange;
Above-mentioned feedback signaling is sent to gateway from stored-program control exchange;
Above-mentioned feedback signaling is sent to VOIP call controller from gateway;
VOIP call controller judges according to the feedback signaling receiving whether VOIP call callee's programme-controlled exchange voice account continues call with VOIP call calling party's VOIP voice account;
If judgment result is that and do not carry out continuing call, press received pronunciation call flow and process;
If judgment result is that and continue call, the VOIP voice account to VOIP call calling party sends the information that call disestablishment keeps, and the call of setting up between VOIP call calling party's VOIP voice account and VOIP call callee's programme-controlled exchange voice account is connected.
Compare with general technology, by VOIP call method provided by the present invention, can because of VOIP call callee, break down cause VOIP dropped calls in the situation that, VOIP call calling party only needs to keep just can realize continuation call after Call Waiting a period of time, overcome in the unwitting situation of VOIP call calling party, because the poor problem of business experience that call drop causes to VOIP call calling party occurs VOIP call callee.
In addition, the invention also discloses a kind of VOIP phone system.
Referring to Fig. 2, is the structural representation of VOIP phone system of the present invention.VOIP phone system of the present invention, comprises stored-program control exchange 201, service server 202 and VOIP call controller 203;
Described stored-program control exchange 201 is for registering VOIP call callee's programme-controlled exchange voice account;
Described service server 202 is binding relationship for converse callee's VOIP voice account of programme-controlled exchange voice account that the VOIP call callee who registers is set and VOIP;
When causing VOIP dropped calls because of VOIP call callee, whether described service server 202 inquiry VOIP call callees' VOIP voice account has the programme-controlled exchange voice account of binding.
Described VOIP call controller 203 is for when the VOIP dropped calls, to VOIP call callee's programme-controlled exchange voice account, makes a call;
If the Query Result of described service server 202 is not for there is no the programme-controlled exchange voice account of binding, described VOIP call controller 203 is pressed the processing of received pronunciation call flow;
If the Query Result of described service server 202 is the programme-controlled exchange voice account that has binding, described VOIP call controller 203 sends to VOIP call calling party's VOIP voice account the information keeping of calling out, and sends call signaling to VOIP call callee's programme-controlled exchange voice account.
Described VOIP call controller 203 is also connected for the call of setting up between VOIP call calling party's VOIP voice account and VOIP call callee's programme-controlled exchange voice account.
After described VOIP call controller 203 makes a call to VOIP call callee's programme-controlled exchange voice account, described VOIP call callee's programme-controlled exchange voice account sends feedback signaling to described stored-program control exchange;
Described stored-program control exchange 201 is sent to gateway by above-mentioned feedback signaling;
Described gateway is sent to described VOIP call controller 203 by above-mentioned feedback signaling;
Described VOIP call controller 203 judges according to the feedback signaling receiving whether VOIP call callee's programme-controlled exchange voice account continues call with VOIP call calling party's VOIP voice account;
If judgment result is that and do not carry out continuing call, described VOIP call controller 203 is pressed the processing of received pronunciation call flow;
If judgment result is that and continue call, VOIP call controller 203 sends to VOIP call calling party's VOIP voice account the information that call disestablishment keeps, and the call of setting up between VOIP call calling party's VOIP voice account and VOIP call callee's programme-controlled exchange voice account is connected.
Compare with general technology, by VOIP phone system provided by the present invention, can because of VOIP call callee, break down cause VOIP dropped calls in the situation that, VOIP call calling party only needs to keep just can realize continuation call after Call Waiting a period of time, overcome in the unwitting situation of VOIP call calling party, because the poor problem of business experience that call drop causes to VOIP call calling party occurs VOIP call callee.
Refer to Fig. 3, for VOIP call callee, apply an embodiment of VOIP phone system of the present invention during based on WIFI network environment.
Terminal 1, for VOIP call callee, possesses the ability that simultaneously accesses TDM network and IP network, integrated two the voice account A of terminal 1 and B, and the voice account that wherein B is programme-controlled exchange, A is VOIP voice accounts.
Terminal 1, by WIFI network insertion IP network, by VOIP call controller registration VOIP voice account A, is registered programme-controlled exchange voice account B by stored-program control exchange.
Service server arranges the binding relationship of VOIP voice account A and programme-controlled exchange voice account B.
Terminal 2 is VOIP call calling party, by VOIP call controller registration VOIP voice account C.VOIP call calling party's VOIP voice account C makes a call to VOIP call callee's voice account A, A and C call.
VOIP call controller sends signaling to voice account A and detects, and when the WIFI of terminal 1 network signal disconnects, is also that VOIP call callee's voice account A breaks down, now VOIP dropped calls.
VOIP call controller is known in the WIFI network signal of terminal 1 and is had no progeny, informing business server.Service server is received after the message of account A interruption, inquires about local data base, judges whether account A has the programme-controlled exchange voice account of binding.If service server inquiry local data base is found not bind account, feed back to not binding information of VOIP call controller, VOIP call controller is pressed received pronunciation call flow and is processed; As found binding account, service server sends the instruction of " send holding tone to account C, B makes a call to account " to VOIP call controller, and VOIP call controller sends holding tone to account C, and to account, B makes a call.
VOIP call controller is forwarded to gateway by the call signaling of initiating to programme-controlled exchange voice account B, gateway is forwarded to stored-program control exchange by call signaling, stored-program control exchange is forwarded to programme-controlled exchange voice account B by call signaling, programme-controlled exchange voice account B ring, if account B answers, can realize the call between account B and account C.
Programme-controlled exchange voice account B receives after call signaling, to stored-program control exchange, send feedback signaling, stored-program control exchange is transmitted to gateway by feedback signaling, gateway is forwarded to VOIP call controller by feedback signaling, VOIP call controller judges according to the feedback signaling of account B whether it answers, if do not answered, by VOIP call controller, by received pronunciation call flow, processed, as answer, the information that VOIP call controller is answered account B feeds back to service server, service server sends the instruction of " stopping sending holding tone to account C " to VOIP call controller, VOIP call controller makes a call and keeps removing instruction to account C, stop sending holding tone to it, realized the call between account B and account C.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (9)
1. a VOIP call method, is characterized in that, comprises the following steps:
Registration VOIP call callee's programme-controlled exchange voice account;
Converse callee's VOIP voice account of the programme-controlled exchange voice account that the VOIP call callee who registers is set and VOIP is binding relationship;
When VOIP dropped calls, to VOIP call callee's programme-controlled exchange voice account, make a call;
The call of setting up between VOIP call calling party's VOIP voice account and VOIP call callee's programme-controlled exchange voice account is connected.
2. VOIP call method according to claim 1, is characterized in that, described VOIP call callee's VOIP voice account is carried out VOIP call by WIFI network.
3. VOIP call method according to claim 1, is characterized in that, before the described step making a call to VOIP call callee's programme-controlled exchange voice account, comprises the following steps:
VOIP voice account to VOIP call callee sends detection signaling in real time, judges whether VOIP call is interrupted.
4. VOIP call method according to claim 1, is characterized in that, the described step making a call to VOIP call callee's programme-controlled exchange voice account, comprises the following steps:
Whether inquiry VOIP call callee's VOIP voice account has the programme-controlled exchange voice account of binding;
If Query Result, for there is no the programme-controlled exchange voice account of binding, is pressed received pronunciation call flow and is processed;
If Query Result is the programme-controlled exchange voice account that has binding, the VOIP voice account to VOIP call calling party sends the information keeping of calling out, and sends call signaling to VOIP call callee's programme-controlled exchange voice account.
5. VOIP call method according to claim 4, is characterized in that, the step that the call that the described VOIP of foundation converses between calling party's VOIP voice account and VOIP call callee's programme-controlled exchange voice account is connected, comprises the following steps:
The call signaling that programme-controlled exchange voice account to VOIP call callee is sent is sent to gateway;
Above-mentioned call signaling is sent to stored-program control exchange from gateway;
Above-mentioned call signaling is sent to VOIP call callee's programme-controlled exchange voice account from stored-program control exchange;
VOIP call callee's programme-controlled exchange voice account receives after call signaling, and the call of setting up between VOIP call calling party's VOIP voice account and VOIP call callee's programme-controlled exchange voice account is connected.
6. VOIP call method according to claim 1, is characterized in that, the step that the call that the described VOIP of foundation converses between calling party's VOIP voice account and VOIP call callee's programme-controlled exchange voice account is connected, comprises the following steps:
VOIP call callee's programme-controlled exchange voice account sends feedback signaling to VOIP call controller;
VOIP call controller judges according to feedback signaling whether VOIP call callee's programme-controlled exchange voice account continues call with VOIP call calling party's VOIP voice account;
If judgment result is that and do not carry out continuing call, press received pronunciation call flow and process;
If judgment result is that and continue call, the VOIP voice account to VOIP call calling party sends the information that call disestablishment keeps, and the call of setting up between VOIP call calling party's VOIP voice account and VOIP call callee's programme-controlled exchange voice account is connected.
7. a VOIP phone system, is characterized in that, comprises stored-program control exchange, service server and VOIP call controller;
Described stored-program control exchange is for registering VOIP call callee's programme-controlled exchange voice account;
Described service server is used for arranging the VOIP call callee's who registers programme-controlled exchange voice account and VOIP call callee's VOIP voice account is binding relationship;
Described VOIP call controller is for when VOIP dropped calls, to converse callee's programme-controlled exchange voice account of VOIP, makes a call; And the call of setting up between VOIP call calling party's VOIP voice account and VOIP call callee's programme-controlled exchange voice account is connected.
8. VOIP phone system according to claim 7, is characterized in that, when VOIP dropped calls, whether described service server inquiry VOIP call callee's VOIP voice account has the programme-controlled exchange voice account of binding;
If Query Result is not for there is no the programme-controlled exchange voice account of binding, described VOIP call controller is pressed the processing of received pronunciation call flow;
If Query Result is the programme-controlled exchange voice account that has binding, described VOIP call controller sends to VOIP call calling party's VOIP voice account the information keeping of calling out, and sends call signaling to VOIP call callee's programme-controlled exchange voice account.
9. VOIP phone system according to claim 7, it is characterized in that, after described VOIP call controller makes a call to VOIP call callee's programme-controlled exchange voice account, described VOIP call callee's programme-controlled exchange voice account sends feedback signaling to described VOIP call controller;
Described VOIP call controller judges according to the feedback signaling receiving whether VOIP call callee's programme-controlled exchange voice account continues call with VOIP call calling party's VOIP voice account;
If judgment result is that and do not carry out continuing call, described VOIP call controller is pressed the processing of received pronunciation call flow;
If judgment result is that and continue call, VOIP call controller sends to VOIP call calling party's VOIP voice account the information that call disestablishment keeps, and the call of setting up between VOIP call calling party's VOIP voice account and VOIP call callee's programme-controlled exchange voice account is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210133848.2A CN102685341B (en) | 2012-04-28 | 2012-04-28 | Voice over Internet protocol (VOIP) call method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210133848.2A CN102685341B (en) | 2012-04-28 | 2012-04-28 | Voice over Internet protocol (VOIP) call method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102685341A CN102685341A (en) | 2012-09-19 |
| CN102685341B true CN102685341B (en) | 2014-10-15 |
Family
ID=46816677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210133848.2A Active CN102685341B (en) | 2012-04-28 | 2012-04-28 | Voice over Internet protocol (VOIP) call method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102685341B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932566B (en) * | 2012-10-16 | 2014-02-19 | 福建升腾资讯有限公司 | Method for reducing voice distortion in VOIP (Voice over Internet Protocol) phone call under VDI (Virtual Desktop Infrastructure) environment |
| JP6635525B1 (en) * | 2018-10-29 | 2020-01-29 | Ｎｅｃプラットフォームズ株式会社 | Exchange, communication system, registration method and registration program |
| CN111404922B (en) * | 2020-03-12 | 2022-04-26 | 厦门亿联网络技术股份有限公司 | Communication terminal and VOIP multi-account dynamic adjustment registration system and method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101159719A (en) * | 2007-09-21 | 2008-04-09 | 北京大唐高鸿数据网络技术有限公司 | VoIP analogy gateway and inside switch method of implementing conversation under fault condition |
| CN101472018A (en) * | 2007-12-24 | 2009-07-01 | 深圳易拓科技有限公司 | Communication system |
| CN101789882A (en) * | 2009-01-23 | 2010-07-28 | 华为终端有限公司 | Link switching method, household gateway and link switching system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1787587A (en) * | 2004-12-09 | 2006-06-14 | 尚宏电子股份有限公司 | Method for establishing calling on-line by network telephone |
-
2012
- 2012-04-28 CN CN201210133848.2A patent/CN102685341B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101159719A (en) * | 2007-09-21 | 2008-04-09 | 北京大唐高鸿数据网络技术有限公司 | VoIP analogy gateway and inside switch method of implementing conversation under fault condition |
| CN101472018A (en) * | 2007-12-24 | 2009-07-01 | 深圳易拓科技有限公司 | Communication system |
| CN101789882A (en) * | 2009-01-23 | 2010-07-28 | 华为终端有限公司 | Link switching method, household gateway and link switching system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102685341A (en) | 2012-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20090129297A1 (en) | Communication system | |
| WO2007131418A1 (en) | A method and phone terminal for carrying out call forwarding | |
| CN103905660A (en) | One-number double-phone associated calling method, one-number double-phone associated calling device and application server | |
| CN102685341B (en) | Voice over Internet protocol (VOIP) call method and system | |
| JP2007228375A (en) | Method and system for calling back urgent call, voip node apparatus and program in voip network | |
| CN102647532A (en) | Intelligent standby network telephone | |
| US8824458B2 (en) | Method and apparatus for supporting call control of circuit domain telephone and VoIP | |
| JP5516774B2 (en) | System and method for preventing loss of first call of VoIP terminal (System method for preventing first call loss VoIP) | |
| EP2173110B1 (en) | A realizing method for re-answering call | |
| CN104602214A (en) | Expansion method of wireless voice and short message service of mobile phone | |
| JP2008005345A (en) | Method for connecting telephone line | |
| CN105450820B (en) | A kind of method and system for establishing push to talk hand-free call | |
| CN101197888B (en) | Method and system for implementing hang-up selection when non-intelligent SIP terminal call waiting | |
| KR20120036532A (en) | Push to talk signaling management system using ip-pbx | |
| CN101252706B (en) | Method and system for forwarding intelligent call | |
| CN103139055B (en) | Voice home gateway side realizes method and the device of internal call transfer | |
| JP2008022487A (en) | Telephone system which automatically sets call transfer | |
| CN101212521B (en) | Method for implementing hotline service in IP multimedia subsystem | |
| CN1697468A (en) | Method for handset to filter incoming calls | |
| JP4911308B2 (en) | Telephone terminal and hold control processing program | |
| JP2015050731A (en) | Telephone terminal having in-call message transmission function and/or receiving function | |
| JP2008098942A (en) | Information display phone control system, information display control method, and its program recording medium | |
| JP2008306283A (en) | Callback device, callback program, telephone set and its program | |
| JP4225259B2 (en) | Carrier selection processing method, transmission processing method, and IP telephone apparatus | |
| JP2005303470A (en) | Ip phone, control apparatus, and call termination notice method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510623 Guangdong city in Guangzhou Province, the Pearl River Metro Chinese Sui Road No. 6 Patentee after: CHINA SOUTHERN POWER GRID Co.,Ltd. Patentee after: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE Co.,Ltd. Address before: 510623 Guangdong city in Guangzhou Province, the Pearl River Metro Chinese Sui Road No. 6 Patentee before: CHINA SOUTHERN POWER GRID Co.,Ltd. Patentee before: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE OF CHINA ENERGY ENGINEERING GROUP Co.,Ltd. Address after: 510623 Guangdong city in Guangzhou Province, the Pearl River Metro Chinese Sui Road No. 6 Patentee after: CHINA SOUTHERN POWER GRID Co.,Ltd. Patentee after: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE OF CHINA ENERGY ENGINEERING GROUP Co.,Ltd. Address before: 510623 Guangdong city in Guangzhou Province, the Pearl River Metro Chinese Sui Road No. 6 Patentee before: CHINA SOUTHERN POWER GRID Co.,Ltd. Patentee before: Guangdong Electric Power Design Institute |