CN202218420U - Group wireless data communication exchange board - Google Patents
Group wireless data communication exchange board Download PDFInfo
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- CN202218420U CN202218420U CN2011202579843U CN201120257984U CN202218420U CN 202218420 U CN202218420 U CN 202218420U CN 2011202579843 U CN2011202579843 U CN 2011202579843U CN 201120257984 U CN201120257984 U CN 201120257984U CN 202218420 U CN202218420 U CN 202218420U
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Abstract
The utility model discloses a group wireless data communication exchange board, which comprises a signal access assembly, a gateway assembly, a network exchange assembly, a wireless fidelity (WIFI) wireless route centralized control (AC) assembly, a WIFI wireless route hot spot access (AP) assembly and a central control computer. The signal access assembly comprises a wireless signal access module and an asymmetric digital subscriber line (ADSL) wired access module and is connected with the network exchange assembly directly or through a gateway. The WIFI wireless route hot spot access (AP) assembly is connected with the WIFI wireless route centralized control (AC) assembly, the WIFI wireless route centralized control (AC) assembly is connected with the network exchange assembly, and the network exchange assembly is connected with the central control computer. Compared with transmission products in the prior art, the group wireless data communication exchange board is simplified, guarantees communication quality, and simultaneously guarantees safety of external communication, and is convenient use due to two signal access methods, namely wired access and wireless access.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of group RFDC switch.
Background technology
RFDC is a kind of communication mode through the radio wave data information.It is on the basis of wired data communication, to grow up, and can realize the data communication under the mobile status.Data communication is that Computers and Communication combines and a kind of communication mode of producing, mainly is to be used for realizing communicating by letter between people and computer and computer and the computer.Data communication originally is that stationary computers is passed through the telecommunication transmission circuit realization.Wireless data communication system is the extension of ground cable data communication network and replenishes.This system is main with the cellular cell networking mode, is made up of base station and wireless terminal, and wireless terminal can be portable computer or be designed to portable or aim at the equipment of move operation.
TD-SCDMA is that the English of TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) is called for short, and is a kind of technical standard of third generation radio communication, also is in three 3G standards of ITU (International Telecommunications Union) approval.Meet the basic demand of ITU: reach at indoor, hand-held set and move under three kinds of environment to third generation land mobile communication system; Support speech and various multi-medium data professional (speed reaches 2Mb/s), realize high-quality, high spectrum utilization, the compatible core network of the Radio Transmission Technology and the whole world cheaply.
TD-LTE is the Long Term Evolution of 3G standard TD-SCDMA, is a kind of specially for moving the wireless communication standard that high broadband application designs.Mainly comprise three big characteristics: 1. obtained extensive international the support, become international standard; 2. networking speed is fast, can reach tens times of TD-SCDMA technology, makes ubiquitous high speed Internet access become possibility; 3. industry development speed is fast, has realized synchronized development basically with other international mobile broadband technology, is representing the most advanced level of world today's mobile communication industry.
WCDMA is that the English of English Wideband Code Division Multiple Access (WCDMA) is called for short, and is a kind of third generation wireless communication technique.W-CDMA (WCDMA) is an ITU (International Telecommunications Union) standard, and it is to develop from CDMA.CDMA2000 is a 3G mobile communication standard, and the radio interface of the IMT-2000 standard approval of the ITU of International Telecommunications Union also is the extension of 2G cdmaOne (being a 2G mobile communication standard) standard.CDMA2000 and another 3G standard WCDMA are incompatible.
WIFI is an adopting wireless fidelity technology, and it is the same with Bluetooth technology, belongs to the short distance wireless technical that in office and family, uses, and maximum transmission rate is 11Mbps.Its key property is: speed is fast, and reliability is high, and in open zone, communication distance can reach 305 meters, and in the closure zone, communication distance is 76 meters to 122 meters, conveniently integrates with the existing Ethernet network.
802.11n:WIFI alliance is in a wireless transmission standards agreement of 802.11a/b/g back; In order to realize high bandwidth, high quality services; Its major advantage has: 1, aspect transmission rate; 802.11n can be with the transmission rate of WLAN by the 54Mbps that present 802.11a and 802.11g provide, be provided to 300Mbps even up to 600Mbps.Have benefited from MIMO (multiple-input, multiple-output) is combined with OFDM (OFDM) technology and the MIMO OFDM that uses technology, improved wireless transmission quality, transmission rate is greatly improved.2, aspect coverage, 802.11n adopts intelligent antenna technology, through the aerial array that many groups stand-alone antenna is formed, can dynamically adjust wave beam, guarantees to let WLAN user receive stable signal, and can reduce the interference of other signal.Therefore its coverage can expand quite a few square kilometres to, and the WLAN mobility is greatly improved.3, aspect compatible; 802.11n adopted a kind of software and radio technique; It is a complete programmable hardware platform, makes the base station of different system and terminal to realize intercommunication and compatibility through the different software of this platform, and this makes that the compatibility of WLAN is greatly improved.This means that WLAN will be not only can realize that 802.11n is compatible forwards, backwards, and can realize combining of WLAN and radio wide area network, such as 3G.
Gateway can carry out circuit switching network (like telephone network) and the real-time two-way communication of packet switching network (like the internet), and the connectedness between the heterogeneous network is provided, and it is the bridge between traditional circuit switching network and the modern IP network.
The basic function of gateway can reduce three kinds: 1, translation-protocol: gateway makes various network can set up contact as an interpreter, for example, allows PSTN (PSTN) and network H.323 to talk with each other to set up and to remove calling.2, transitional information form: various network is used the different coding method, and gateway will be changed information, makes between the heterogeneous network freely exchange message, for example sound and TV.3, transmission information: be responsible for transmission information between heterogeneous networks.
The gatekeeper is used for managing I P telephony gateway; To gateway etc. address translation and access control service are provided; And have a following major function: 1, RAS (remote access service) function, like authentification of user, address resolution, Bandwidth Management, routing management, security management, district management; 2, call-handling capability, as carry out processing such as call establishment, capabilities exchange, calling maintenance and terminated call; 3, user interface and parameter setting are like the management and the user authority management of input, modification, preservation and the Debugging message of data such as routing table, gateway tables of data, gateway group tables of data, this gatekeeper data setting, log information, warning information; 4, RADIUS Client program function: send the user rs authentication request to charging authentication center, wait for the checking result of charging authentication center; 5, network management function: act on behalf of through operation SNMP (Simple Network Management Protocol), set up with network management center and get in touch.
MAC (Media Access Control) address, or be called MAC address, hardware address is used for the position of define grid equipment.In osi model (inventionthe open systems interconnection reference model), the three-layer network layer is responsible for the IP address, and second layer data link layer then is responsible for the MAC address.Therefore a main frame has an IP address, and each network site has a MAC address that is specific to it.
Inside line, local area network (LAN), the security alarm that existing group office space needs be independently wired system or the part wireline side wireless incompatible, it is very loaded down with trivial details and installation cost is higher to install and use maintenance; In addition; Because IP phone allows on internet, Intranet or the dedicated lan (local area network (LAN)) that use ICP/IP protocol (network communication protocol) and WAN (wide area network), to carry out telephone talk; Though Intranet and dedicated network can provide reasonable speech quality, the sound quality that provides with public switched telephone network can match in excellence or beauty, and can't provide at present on the internet and dedicated network or the such speech quality of PSTN; On group's family voice solution; Converse with TCP/IP in inside, the outside conversation with PSTN is effect method best and with low cost, but prior art does not have this kind solution.
The utility model content
The utility model problem to be solved is to provide a kind of group RFDC switch, and is especially a kind of through behind TD-SCDMA wireless access external voice and the wide-band-message, group's RFDC switch that group internal connects through WIFI.This equipment transmission product more of the prior art is simplified more, when guaranteeing speech quality, also will ensure the fail safe of external call greatly.
For overcoming the above problems, the utility model can be realized by following technical scheme:
A kind of group RFDC switch, route centralized control (AC) assembly that comprises that signal inserts assembly, gateway component, gatekeeper's assembly, network exchange assembly, WIFI (WiMAX) is wireless, WIFI is wireless, and the route focus inserts (AP) assembly, central control computer, terminal; Signal inserts assembly and directly or through gateway component links to each other with the network exchange assembly, and gatekeeper's assembly links to each other with the network exchange assembly; WIFI is wireless, and route focus access (AP) assembly links to each other with the wireless route centralized control of WIFI (AC) assembly, and route centralized control that WIFI is wireless (AC) assembly links to each other with the network exchange assembly; The network exchange assembly links to each other with central control computer, and said terminal is inserted (AP) component signals with the wireless route focus of WIFI and is connected.
Said signal inserts assembly and has wireless signal AM access module and the wired AM access module of ADSL, has the speech Separation module in the wired AM access module of said ADSL; Said signal inserts assembly and has two at least, and each signal inserts gateway component of assembly connection.
Said wireless signal AM access module is TD-SCDMA radio access module, TD-LTE radio access module, WCDMA radio access module or CDMA2000 radio access module.
A wireless route centralized control of said WIFI (AC) assembly can connect 1-64 the wireless route focus of WIFI and insert (AP) assembly.
The wireless route focus of said WIFI inserts (AP) assembly and can connect 1-253 terminal.
Said terminal comprises one or more of WIFI mobile phone, WIFI base, security sensor, local area network terminal computer.
The effect of the above group's RFDC switch each several part is following:
Wireless signal AM access module: carry out 3G core network signal (comprising CS territory and PS territory signal) and insert, and CS (circuit type H324 protocol signal, i.e. conversation signal) and PS (packet-type ICP/IP protocol signal, i.e. broadband signal) are separated.
The wired AM access module of ADSL: receive cable network signal; Speech Separation module wherein is with CS (circuit type H324 protocol signal; Be conversation signal) and PS (packet-type ICP/IP protocol signal; Be broadband signal) separate, and conversation signal is converted into packet-type ICP/IP protocol signal through gateway.
Gateway component: convert CS (circuit type H324 protocol signal) into PS (packet-type ICP/IP protocol signal).
Gatekeeper's assembly: safeguard telephone number and IP address correspondence table; According to IP address of telephone number feedback, this switch of commands for controlling of accepting central control computer is realized functions such as the number maintenance of all conversation parts, authority setting, call meters, foundation cancellation conversation, traffic flow distribution, traffic priority level.
The network exchange assembly: import PS signal that inserts and the CS signal that converts PS into into the wireless route centralized control of WIFI (AC) assembly with ICP/IP protocol, central control computer carries out the data communication exchange.
Route centralized control that WIFI is wireless (AC) assembly: this switch of commands for controlling that receives central control computer is realized the flow of the online number of real-time monitored of all-network part, statistic flow, unique user and is used network condition; It is addressable network and network rights of using that the user that assigned ip address/MAC Address is set need not authentication; Functions such as authentication based on the user of flow or duration.
WIFI is wireless, and the route focus inserts (AP) assembly: the focus that carries out the WIFI signal inserts.
Central control computer: through install webmastering software control group's RFDC switch realize crm system (CRM system) and sector application interface operation (as; Hotel, hospital, bank, enterprise) and the backup and the deletion of all conversation and charging, network historical record and charge on traffic, safety monitoring information etc., and operations such as the control of authority of completely restricted extension, local area network (LAN), the number of changing.
Do further to set forth in the face of the technical scheme of the utility model down:
The method for using of the said group of the utility model RFDC switch comprises following operation:
1, installs: the central control computer of packing into of the software in the mounting disc of group's RFDC switch assembling; Group's RFDC switch is inserted the usim card (global Subscriber Identity Module) of TD (mobile communication); Record the relaying prompt tone, local code is set and goes out office code;
2, search, identification, distribute the IP address and the MAC Address of group's RFDC switch intraware and all group's voice, broadband, security terminal, the IP address of voice terminal is tied to internal number;
3, communication: comprise network service and telephone communication.Telephone communication wherein: WIFI base or WIFI mobile phone are directly dialled extension number can realize INCOM intercom; The user transfers to office code can realize that interior lines get an outside line with WIFI base or WIFI mobile phone; The interior lines extension number is dialed in outside line, and the PSTN conversion of signals that gateway component resolves to WLAN (WLAN) interior IP address with this extension number and signal inserted assembly can be set up conversation for the TCP/IP signal; Network service: the local area network terminal computer inserts (AP) assembly through the wireless route focus of WIFI and gets final product the access to LAN inter access; Utilize external network to initiate the request of access internal network, the signal that route centralized control that WIFI is wireless (AC) assembly is little with 3G signal access flow inserts assembly, just can accept the extranets visit.
The purposes of the said group of the utility model RFDC switch comprises one or more of purposes of following aspect:
1, INCOM intercom
Directly dial extension number with WIFI base or WIFI mobile phone, group's RFDC switch resolves to the IP address with extension number and calls out and set up the interior IP conversation of WLAN on the WIFI platform (WLAN);
2, outside line is dialed in interior lines
At first the user transfers to office code with WIFI base or WIFI mobile phone; This switch will go out the address that office code resolves to gatekeeper's assembly; Gatekeeper's assembly receives whether this terminal of identification has out authority after the call request, and cancellation connects as not having then, if any then selecting with which gateway foundation calling to be connected according to traffic flow and priority level; All hurry like gateway, then send the cancellation of prompting back and connect; Set up with after the calling of gateway component is connected, will send stand by tone, and dial outside line key, gateway is the PSTN signal of H324 with the TCP/IP conversion of signals, and foundation is conversed;
3, interior lines are dialed in outside line
Signal inserts assembly and receives that the PSTN signal with the H324 agreement imports gateway component into after the call request; Gateway component is to import gatekeeper's assembly into behind the TCP/IP signal with the PSTN conversion of signals; Extension number was dialled in prompting after gatekeeper's assembly was play the relaying prompt tone, and gatekeeper's assembly resolves to this extension number the interior IP address of terminal of WLAN (WLAN) and sets up conversation;
4, visit in the local area network (LAN)
Under the control of the wireless route centralized control of WIFI (AC) assembly, the local area network terminal computer inserts (AP) assembly access through the wireless route focus of WIFI;
5, extranets visit
Route centralized control that WIFI is wireless (AC) assembly judges at first whether this IP has authority after receiving request, and if any authority, it is little to judge that then which signal inserts the assembly flow, and the signal that 3G signal access flow is little inserts assembly;
6, security alarm
Security sensor is wirelessly transmitted to the wireless route centralized control of WIFI (AC) assembly through WIFI, passes central control computer back by the wireless route centralized control of WIFI (AC) assembly then and comes control and treatment: as dial the police emergency number, start alarm bell, locked gate inhibition, display monitoring picture etc.;
7, central control system
Central control computer through webmastering software is installed transmits with ICP/IP protocol; With the control point of gatekeeper's assembly as all-calls; With the control point of the wireless route centralized control of WIFI (AC) assembly as the all-network signal; Be that central control computer only needs that the gatekeeper's assembly in this switch and the wireless route centralized control of WIFI (AC) assembly are carried out network management communication and just can accomplish all controlled function; Control this switch intraware and WIFI terminal realize crm system (CRM system) and Golongan Karya user sector application interface operation (as; Hotel, hospital, bank, enterprise) and the backup and the deletion of all conversation and charging, network historical record, safety monitoring information etc., operations such as the control of authority of completely restricted extension and local area network (LAN) and the number of changing.
The utlity model has following beneficial effect: one of which, adopt the wireless PS of WIFI (packet switching) territory to transmit exchange group internal voice, broadband, security terminal; And the wireless route focus of WIFI inserts (AP) assembly and can connect 253 wireless WIFI terminals at most; WIFI of so direct usefulness is wireless route focus inserts (AP) assembly and has replaced traditional wired 253 netting twines and telephone wire, and CS (circuit switching) the territory transmission product that contrasts H324 has simultaneously been simplified a lot; Two, only adopt the packet switching of ICP/IP protocol at INCOM intercom; Externally still adopted CS (circuit switching) the territory transmission of the H324 agreement on the 3G platform in the conversation; Guaranteed the internal-external calling quality; And external call is with the public telephone network transmission but not with the IP transmission, with the fail safe that ensures external call greatly; Three, the wired AM access module of wireless signal AM access module and ADSL can receive simultaneously and handle wire signal and wireless signal, and is convenient and practical.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Among the figure: 1, signal inserts assembly; 3, network exchange assembly; 4, the wireless route centralized control of WIFI (AC) assembly; 5, the wireless route focus of WIFI inserts (AP) assembly; 6, central control computer; 7, gateway component; 9, WIFI base; 10, WIFI mobile phone; 11, local area network terminal computer; 12, security sensor; 13, gatekeeper's assembly; 14, wireless signal AM access module; 15, the wired AM access module of ADSL; 16, speech Separation module.
Embodiment
Close the technical scheme that accompanying drawings and embodiment further introduce the utility model below.
A kind of group RFDC switch, mainly by forming like the lower part: signal inserts assembly 1, gateway component 7, gatekeeper's assembly 13, network exchange assembly 3, WIFI (WiMAX) is wireless route centralized control (AC) assembly 4, WIFI is wireless, and the route focus inserts (AP) assembly 5, central control computer 6, terminal; Said signal inserts assembly 1 and comprises two; Said gateway component 7 comprises two; And each said signal inserts assembly 1 and directly or through a gateway component 7 links to each other with network exchange assembly 3; Each signal inserts assembly 1 and all has wireless signal AM access module 14 and the wired AM access module 15 of ADSL, has speech Separation module 16 in the wired AM access module 15 of said ADSL, and said wireless signal AM access module 14 is TD-SCDMA radio access modules; WIFI is wireless, and route focus access (AP) assembly 5 links to each other with the wireless route centralized control of WIFI (AC) assembly 4; Said terminal is inserted (AP) assembly 5 signals with the wireless route focus of WIFI and is connected, and route centralized control that WIFI is wireless (AC) assembly 4 links to each other with network exchange assembly 3; Network exchange assembly 3 links to each other with central control computer 6, and gatekeeper's assembly 13 links to each other with network exchange assembly 3.
Route centralized control that WIFI is wireless (AC) assembly 4 is connected with two wireless route focuses of WIFI and inserts (AP) assembly 5; Each WIFI is wireless, and route focus access (AP) assembly 5 is connected with four terminals, and said terminal is WIFI base 9, WIFI mobile phone 10, local area network terminal computer 11, security sensor 12.
The method for using of the said group of present embodiment RFDC switch comprises following operation:
1, installs: the central control computer 6 of packing into of the software in the mounting disc of group's RFDC switch assembling; Group's RFDC switch is inserted the usim card (global Subscriber Identity Module) of two TD (mobile communication); Record the relaying prompt tone, local code is set and goes out office code;
The IP address and the MAC Address of 2, search, identification, distribution group's RFDC switch intraware and all group's voice, broadband, security terminal; The IP address of voice terminal is tied to internal number; As: extension set is " 2401 "; Go out office code and be " 9 " etc., in order to avoid INCOM intercom does not meet user's use habit with the dialing of IP address;
3, communication: comprise network service and telephone communication.Telephone communication wherein: WIFI base 9 or WIFI mobile phone 10 are directly dialled extension numbers can realize INCOM intercom; The user transfers to office codes can realize that interior lines get an outside line with WIFI base 9 or WIFI mobile phone 10; The interior lines extension number is dialed in outside line, and gatekeeper's assembly 13 resolves to the interior IP of WLAN (WLAN) address with this extension number, and gateway component 7 inserts signal the PSTN conversion of signals of assembly can set up conversation for the TCP/IP signal; Network service: local area network terminal computer 11 inserts (AP) assembly 5 through the wireless route focus of WIFI and gets final product the access to LAN inter access; Utilize external network to initiate the request of access internal network, route centralized control that WIFI is wireless (AC) assembly 6 signals that 3G signal access flow is little insert assembly 1, just can accept the extranets visit.
The purposes of the said group of present embodiment RFDC switch is characterized in that comprising the purposes of following aspect:
1, INCOM intercom
Directly dial extension number with WIFI base 9 or WIFI mobile phone 10, group's RFDC switch resolves to the IP address with extension number and calls out and set up the interior IP conversation of WLAN on the WIFI platform (WLAN);
2) outside line is dialed in interior lines
At first the user transfers to office code " 9 " with WIFI base 9 or WIFI mobile phone 10; This switch will go out the address that office code " 9 " resolves to gatekeeper's assembly 13; Gatekeeper's assembly 13 receives whether this terminal of identification has out authority after the call request, and cancellation connects as not having then, if any then selecting to be connected with the 7 foundation callings of which gateway component according to traffic flow and priority level; All hurry like gateway component 7, then send the cancellation of prompting back and connect; Set up with after the calling of gateway component 7 is connected, will send stand by tone and dial outside line key, gateway component 7 is the PSTN signal of H324 with the TCP/IP conversion of signals, and foundation is conversed;
3, interior lines are dialed in outside line
Signal inserts assembly 1 and receives that the PSTN signal with the H324 agreement imports gateway component 7 into after the call request; Gateway component 7 is to import gatekeeper's assembly 13 into behind the TCP/IP signal with the PSTN conversion of signals; Extension number was dialled in prompting after gatekeeper's assembly 13 was play the relaying prompt tone, and gatekeeper's assembly 13 resolves to this extension number the interior IP address of terminal of WLAN (WLAN) and sets up conversation;
4, visit in the local area network (LAN)
Under the control of the wireless route centralized control of WIFI (AC) assembly 4, local area network terminal computer 11 inserts (AP) assembly 5 access through the wireless route focus of WIFI;
5, extranets visit
Route centralized control that WIFI is wireless (AC) assembly 4 judges at first whether this IP has authority after receiving request, and if any authority, it is little to judge that then signal inserts assembly 1 which flow, and the signal that 3G signal access flow is little inserts assembly 1;
6, security alarm
7, central control system
The utility model is not limited to above-mentioned embodiment; Announcement and guidance according to above-mentioned specification; The utility model those skilled in the art also can carry out suitable change and modification to above-mentioned execution mode, and its change also should fall into the protection range of the claim of the utility model.In addition, although used some specific terms in this specification, these terms are explanation for ease just, the present invention is not constituted any restriction.
Claims (5)
1. group's RFDC switch is characterized in that: route centralized control (AC) assembly that comprises that signal inserts assembly, gateway component, gatekeeper's assembly, network exchange assembly, WIFI is wireless, WIFI is wireless, and the route focus inserts (AP) assembly, central control computer, terminal; Signal inserts assembly and directly or through gateway component links to each other with the network exchange assembly, and gatekeeper's assembly links to each other with the network exchange assembly; WIFI is wireless, and route focus access (AP) assembly links to each other with the wireless route centralized control of WIFI (AC) assembly, and route centralized control that WIFI is wireless (AC) assembly links to each other with the network exchange assembly; The network exchange assembly links to each other with central control computer, and said terminal is inserted (AP) component signals with the wireless route focus of WIFI and is connected.
2. according to the said a kind of group of claim 1 RFDC switch, it is characterized in that: said signal inserts assembly and has wireless signal AM access module and the wired AM access module of ADSL, has the speech Separation module in the wired AM access module of said ADSL.
3. according to the said a kind of group of claim 2 RFDC switch, it is characterized in that: said wireless signal AM access module is TD-SCDMA radio access module, TD-LTE radio access module, WCDMA radio access module or CDMA2000 radio access module.
4. according to the said a kind of group of claim 1 RFDC switch, it is characterized in that: have two said signals at least and insert assembly, and each signal access assembly links to each other with a gateway component.
5. according to the said a kind of group of claim 1 RFDC switch, it is characterized in that: said terminal comprises one or more of WIFI mobile phone, WIFI base, security sensor, local area network terminal computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202579843U CN202218420U (en) | 2011-07-20 | 2011-07-20 | Group wireless data communication exchange board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202579843U CN202218420U (en) | 2011-07-20 | 2011-07-20 | Group wireless data communication exchange board |
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| CN202218420U true CN202218420U (en) | 2012-05-09 |
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| CN2011202579843U Expired - Fee Related CN202218420U (en) | 2011-07-20 | 2011-07-20 | Group wireless data communication exchange board |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102281651A (en) * | 2011-07-20 | 2011-12-14 | 深圳市高新奇科技股份有限公司 | Wireless data communication exchanger for a group, and use method and applications thereof |
| CN103415062A (en) * | 2013-07-17 | 2013-11-27 | 北京创毅讯联科技股份有限公司 | Network connection device, wireless router and network connection method |
| CN112291410A (en) * | 2020-10-14 | 2021-01-29 | 国网河北省电力有限公司信息通信分公司 | Internal telephone dialing method and device and terminal equipment |
-
2011
- 2011-07-20 CN CN2011202579843U patent/CN202218420U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102281651A (en) * | 2011-07-20 | 2011-12-14 | 深圳市高新奇科技股份有限公司 | Wireless data communication exchanger for a group, and use method and applications thereof |
| CN103415062A (en) * | 2013-07-17 | 2013-11-27 | 北京创毅讯联科技股份有限公司 | Network connection device, wireless router and network connection method |
| CN103415062B (en) * | 2013-07-17 | 2016-08-10 | 北京创毅讯联科技股份有限公司 | A kind of network connection device, wireless router and method for connecting network |
| CN112291410A (en) * | 2020-10-14 | 2021-01-29 | 国网河北省电力有限公司信息通信分公司 | Internal telephone dialing method and device and terminal equipment |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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