CN101437180A - POS access equipment and off-hook method thereof - Google Patents

POS access equipment and off-hook method thereof Download PDF

Info

Publication number
CN101437180A
CN101437180A CNA2008101832315A CN200810183231A CN101437180A CN 101437180 A CN101437180 A CN 101437180A CN A2008101832315 A CNA2008101832315 A CN A2008101832315A CN 200810183231 A CN200810183231 A CN 200810183231A CN 101437180 A CN101437180 A CN 101437180A
Authority
CN
China
Prior art keywords
time
hook
delay
task
port
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.)
Granted
Application number
CNA2008101832315A
Other languages
Chinese (zh)
Other versions
CN101437180B (en
Inventor
孙洋建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
New H3C Technologies Co Ltd
Original Assignee
Hangzhou H3C Technologies Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hangzhou H3C Technologies Co Ltd filed Critical Hangzhou H3C Technologies Co Ltd
Priority to CN2008101832315A priority Critical patent/CN101437180B/en
Publication of CN101437180A publication Critical patent/CN101437180A/en
Application granted granted Critical
Publication of CN101437180B publication Critical patent/CN101437180B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Telephonic Communication Services (AREA)

Abstract

The invention discloses a method for realizing off-hook of a piece of POS access equipment of a POS terminal and the POS access equipment. The method comprises the following steps: triggering an off-hook task corresponding to a port to start timing when ring current sent by a network side exchange device is received by the port; when the preset delay time is reached, triggering the port for the off hook and performing consultation with the opposite end POS equipment; and adjusting the preset delay time according to the consultation result. With the method and the POS access equipment, the off-hook delay time is adjusted according to the consultation result to find a reasonable off-hook delay time on the POS access equipment so that the access trading volume of the POS terminal in a unit time is the maximum on the premise of ensuring the access rate of the POS terminal. Besides, when a plurality of ports of the POS access equipment are connected with various exchange devices, the off-hook delay time of each port can be independent so as to satisfy different requirements of different exchange devices.

Description

The off-hook method of POS access device and POS access device
Technical field
The present invention relates to communication technical field, relate in particular to a kind of off-hook method and POS access device of POS access device.
Background technology
(the Point of Sales of POS in the prior art, point of sales terminal) process of swiping the card on the equipment mainly may further comprise the steps: after POS equipment is swiped the card, be connected to POS access device such as FCM (Fast Connect Modem, Fast Connect Modem) or net control device by the switch in Dial-up Network or the particular communication network; The POS access device is connected with bank main (front end processor) system again.User's incoming traffic relevant information such as dealing money, password etc. on POS equipment then; POS equipment is added on the information that obtains in the POS transaction message, sends to bank main by communication network and handles accordingly, and receive the result that bank main returns, and finally reaches the purpose of finishing a transaction.The schematic diagram of the POS equipment access network that relates in the said process as shown in Figure 1.
With networking mode shown in Figure 1 is example, POS equipment comprises by the process that the switch in Dial-up Network or the particular communication network is connected to POS access device such as FCM: POS equipment makes a call, after switch receives the calling of POS equipment, send ringing-current to FCM.FCM is after receiving the ringing-current that switch sends, and hardware produces and interrupts, and off-hook in FCM veneer side interrupt handling routine is gone up V.22 negotiation of beginning between MODEM chip and the POS equipment thereby trigger FCM.After switch detects the FCM off-hook, transmit mutual message between FCM and the POS equipment.。
Insert for bank or Unionpay that density constantly increases, the present situation of the corresponding increase of business transaction amount, it is that call completing rate is the problem that the user is concerned about very much that the POS device call inserts success rate.In the networking of reality,, various with the class of exchange that POS access device such as FCM are direct-connected because the impedance operator of each networking circuit is variant.In application, the switch that has is very responsive to the opportunity of off-hook.For example, some switches are after FCM sends ringing-current, if the FCM off-hook is too fast, switch can't detect the FCM off-hook, subsequently FCM begin and POS equipment between carry out V.2 2MODEM and consult, but because switch can't detect the FCM off-hook, so switch can will not cause consulting failure in time at FCM or POS terminal room transmission signal.
Summary of the invention
The invention provides a kind of off-hook method and POS access device of POS access device, be used on the POS access device using reasonably postponing the off-hook time, guarantee POS terminal call completing rate and improve the access trading volume of POS terminal.
For achieving the above object, the invention provides a kind of off-hook method of POS access device, comprising:
When port received the ringing-current that network side exchange device sends, the off-hook task that triggers described port correspondence picked up counting;
When arriving preset delay time, trigger described port off-hook and hold consultation with opposite end POS equipment;
Adjust described preset delay time according to described negotiation result.
Wherein, described when port receives the ringing-current that network side exchange device sends, before the off-hook task that triggers described port correspondence picks up counting, also comprise:
For described port is set up corresponding off-hook task, and higher limit and the lower limit of time of delay in the described off-hook task are set, be described higher limit the time of delay in the described off-hook task of initialization.
Wherein, describedly adjust described preset delay time according to described negotiation result and comprise:
When this consults failure,, then do not increase the time of delay in the off-hook task of described port correspondence if be not less than described higher limit described time of delay; Otherwise the default time interval will be increased the time of delay in the off-hook task of described port correspondence;
When this is consulted success and is not had the failure record of negotiation, if greater than described lower limit, then reduced the default time interval time of delay in the off-hook task of described port correspondence described time of delay; Otherwise do not reduce the time of delay in the off-hook task of described port correspondence;
When this is consulted success and the failure record of negotiation is arranged, do not change the time of delay in the described off-hook task.
Wherein, described determination methods of consulting successfully or consulting failure is:
Behind the described port off-hook, detect whether receive the carrier wave that opposite end POS equipment sends; Judge when not detecting and consult failure, otherwise continue;
When detecting the carrier wave that described opposite end POS equipment sends, send handshake information to described opposite end POS equipment, receive that described opposite end POS equipment sends to correct responses of described handshake information the time, judge and consult successfully, fail otherwise be judged as negotiation.
Wherein, for different ports, preset delay time just as or different.
The present invention also provides a kind of POS access device, comprising:
The timing trigger element is used for when port receives the ringing-current that network side exchange device sends, and the off-hook task that triggers described port correspondence picks up counting;
The off-hook TU task unit, corresponding with described port, be used for after the triggering of described timing trigger element, picking up counting;
Consult trigger element, be used for when the timing of described off-hook TU task unit arrives preset delay time, trigger described port off-hook and hold consultation with opposite end POS equipment;
Delay time adjusting is used for adjusting described preset delay time according to the negotiation result of described negotiation trigger element.
Wherein, also comprise:
Off-hook task creation unit is used to port to set up corresponding off-hook task, and higher limit and the lower limit of time of delay in the described off-hook task is set, and be described higher limit the time of delay in the described off-hook task of initialization.
Wherein, described delay time adjusting comprises:
Adjust subelement first time of delay, when being used for this and consulting failure, if be not less than described higher limit described time of delay, then do not increase the time of delay in the off-hook task of described port correspondence; Otherwise the default time interval will be increased the time of delay in the off-hook task of described port correspondence;
Adjust subelement second time of delay, is used for when this is consulted success and does not have the failure record of negotiation, if greater than described lower limit, then reduced the default time interval time of delay in the off-hook task of described port correspondence described time of delay; Otherwise do not reduce the time of delay in the off-hook task of described port correspondence;
Adjust subelement the 3rd time of delay, when being used for this negotiation success and the failure record of negotiation being arranged, do not change the time of delay in the described off-hook task.
Wherein, described negotiation trigger element specifically is used for, and when holding consultation with opposite end POS equipment, behind described port off-hook, detects whether receive the carrier wave that opposite end POS equipment sends; Judge when not detecting and consult failure, otherwise continue; When detecting the carrier wave that described opposite end POS equipment sends, send handshake information to described opposite end POS equipment, receive that described opposite end POS equipment sends to correct responses of described handshake information the time, judge and consult successfully, fail otherwise be judged as negotiation.
Compared with prior art, the present invention has the following advantages:
Adjust time of delay of off-hook according to negotiation result, can on the POS access device, find the rational delay off-hook time, make the access trading volume maximum of in the following unit interval of prerequisite that guarantees POS terminal call completing rate POS terminal.In addition, when a plurality of ports of POS access device connected multiple switching equipment, the off-hook of each port time of delay can be separate, satisfied the different requirements of different switching equipment.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of POS equipment access network in the prior art;
Fig. 2 is the off-hook method flow chart of a kind of POS access device among the present invention;
Fig. 3 is the dynamic adjusting method flow chart that postpones the stand-by period among the present invention;
Fig. 4 is the structural representation of POS access device among the present invention;
Fig. 5 is another structural representation of POS access device among the present invention.
Embodiment
The invention provides a kind of off-hook method of POS access device, when certain port of POS access device receives the ringing-current of network side exchange device transmission, carry out timing according to preset delay time, and when arrive in time of delay, triggering this port off-hook, wherein above-mentioned preset delay time is dynamically to adjust according to the negotiation result of each POS access device and opposite end POS equipment.Concrete, this method comprises as shown in Figure 2:
Step s201, when port receives the ringing-current that network side exchange device sends, the off-hook task that triggers described port correspondence picks up counting;
Step s202, when arriving preset delay time, trigger described port off-hook and hold consultation with opposite end POS equipment;
Step s203, adjust described preset delay time according to described negotiation result.
In following examples of the present invention, be that FCM, network side exchange device are that PBX (Private Branch eXchange, stored-program control exchange) describes for example with the POS access device.
When the initialization of FCM veneer, be that each port starts an off-hook task on the FCM veneer, this off-hook task is controlled port off-hook on the FCM veneer by the mode of wait-semaphore.Concrete, when POS equipment makes a call, call out and arrive PBX, trigger the port transmission ringing-current that PBX couples with it in FCM.After port on the FCM receives the ringing-current of PBX transmission, the semaphore that discharges this port correspondence makes the off-hook task of this port correspondence obtain semaphore, the off-hook task postpones to wait for afterwards, after postponing stand-by period arrival, this off-hook task is carried out off-hook and is triggered this port and the V.22 MODEM of opposite end POS equipment room negotiation, the port of FCM and opposite end POS equipment carry out SDLC (SynchronousData Link Control, synchronous data-link control) negotiation of agreement is consulted to carry out normal data interchange by port and the opposite end POS equipment of back FCM.Because each port has the off-hook task of dealing with off-hook separately,, be independent of each other between each port so the time of delay of each port can be identical or different.
Among the present invention, set up corresponding off-hook task respectively for different ports, and higher limit and the lower limit of time of delay in each off-hook task are set, be higher limit the time of delay in can initialization off-hook task.Concrete, be that 4s, lower limit are that the change interval of 0.5s, time of delay is that 0.5s is an example with the higher limit, the dynamic adjusting method of time of delay comprises as shown in Figure 3 in the said process:
Step s301, receive the ringing-current that network side exchange device sends, trigger the off-hook task of port correspondence from port.
Step s302, off-hook arrive time of delay.
Step s303, trigger the port off-hook and V.22 consult with opposite end POS equipment.
Step s304, obtain V.22 negotiation result; When this is consulted success and does not have the failure record of negotiation, carry out step s305; When this is consulted success and the failure record of negotiation is arranged, carry out step s309; When this consults failure, carry out step s307.
V.22 the concrete criterion of negotiation result can be as follows: behind the port off-hook, detect whether receive the carrier wave that opposite end POS equipment sends; Judge when not detecting and consult failure, otherwise continue to detect the carrier wave that whether arrives opposite end POS equipment transmission, when detecting the carrier wave of opposite end POS equipment transmission, send handshake information to opposite end POS equipment, receive that opposite end POS equipment sends to the correct response of handshake information the time, judge and consult successfully, consult failure otherwise be judged as.
Step s305, judge and off-hook time of delay, be then to carry out step s306, otherwise carry out step s309 whether greater than lower limit.
Step s306, off-hook reduce 0.5s and finish time of delays, wait for next time and V.22 consulting; This 0.5s is the preset delay time change interval, also can be worth for other.
Step s307, judge and off-hook time of delay, be then to carry out step s308, otherwise carry out step s309 whether less than higher limit.
Step s308, off-hook increase 0.5s and end time of delay, trigger next time and V.22 consult; This 0.5s is the preset delay time change interval, also can be worth for other.
Step s309, off-hook remain unchanged time of delay, wait for next time and V.22 consulting.
Be that 4s, lower limit are that the change interval of 0.5s, time of delay is that 0.5s is an example with the higher limit.Suppose for port one, in time of delay is that 4s, 3.5s, 3s, 2.5s can both consult success, consult failure afterwards sometime during for 2s in time of delay, then once more when 2.5s holds consultation, since before exist to consult the record (when 2s, consulting failure) of failure, then off-hook remains on 2.5s time of delay.Supposing for port 2, is that 4s, 3.5s, 3s, 2.5s, 2s, 1.5s, 1s, 0.5s can both consult success in time of delay again, owing to arrived the lower limit of off-hook time of delay, so off-hook remains on 0.5s time of delay.Suppose again for port 3, consult failure during for 4s,, can think that therefore the other problems of off-hook outside opportunity caused consulting failure owing to be higher limit in time of delay.
In the method provided by the invention, adjust the time of delay of off-hook according to negotiation result, can on the POS access device, find the rational delay off-hook time, make under the prerequisite that guarantees POS terminal call completing rate, make the access trading volume maximum of POS terminal in the unit interval.In addition, when a plurality of ports of POS access device connect multiple switching equipment, the off-hook of each port time of delay can be separate, satisfied the different requirements of different switching equipment.
The present invention also provides a kind of POS access device, as shown in Figure 4, comprising:
Timing trigger element 10 is used for when port receives the ringing-current that network side exchange device sends, and the off-hook task that triggers the port correspondence picks up counting;
Off-hook TU task unit 20, corresponding with port, be used for after the triggering of timing trigger element 10, picking up counting;
Consult trigger element 30, be used for when the timing of off-hook TU task unit 20 arrives preset delay time, trigger the port off-hook and hold consultation with opposite end POS equipment;
Delay time adjusting 40 is used for adjusting preset delay time according to the negotiation result of consulting trigger element 30.
This POS access device also comprises:
Off-hook task creation unit 50 is used to port to set up corresponding off-hook task, and higher limit and the lower limit of time of delay in the off-hook task is set, and be higher limit the time of delay in the initialization off-hook task.
Above-mentioned delay time adjusting 40 can comprise:
Adjust subelement 41 first time of delay, is used for when this consults failure, if be not less than higher limit time of delay, then do not increase the time of delay in the off-hook task of port correspondence; Otherwise the default time interval will be increased the time of delay in the off-hook task of port correspondence;
Adjust subelement 42 second time of delay, is used for when this is consulted success and does not have the failure record of negotiation, if greater than lower limit, then reduced the default time interval time of delay in the off-hook task of port correspondence time of delay; Otherwise do not reduce the time of delay in the off-hook task of port correspondence;
Adjust subelement 43 the 3rd time of delay, is used for not changing the time of delay in the off-hook task when this is consulted success and the failure record of negotiation is arranged.
Above-mentioned negotiation trigger element 30 can be used for, and when holding consultation with opposite end POS equipment, behind the port off-hook, detects whether receive the carrier wave that opposite end POS equipment sends; Judge when not detecting and consult failure, otherwise continue; When detecting the carrier wave that opposite end POS equipment sends, send handshake information to opposite end POS equipment, receive that opposite end POS equipment sends to correct responses of handshake information the time, judge and consult successfully, fail otherwise be judged as negotiation.
In the equipment provided by the invention, adjust the time of delay of off-hook according to negotiation result, can on the POS access device, find the rational delay off-hook time, make under the prerequisite that guarantees POS terminal call completing rate, make the access trading volume maximum of POS terminal in the unit interval.In addition, when a plurality of ports of POS access device connect multiple switching equipment, the off-hook of each port time of delay can be separate, satisfied the different requirements of different switching equipment.
Above-mentioned module can be distributed in a device, also can be distributed in multiple arrangement.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.

Claims (9)

1, a kind of off-hook method of point of sales terminal POS access device is characterized in that, comprising:
When port received the ringing-current that network side exchange device sends, the off-hook task that triggers described port correspondence picked up counting;
When arriving preset delay time, trigger described port off-hook and hold consultation with opposite end POS equipment;
Adjust described preset delay time according to described negotiation result.
2, the method for claim 1 is characterized in that, and is described when port receives the ringing-current that network side exchange device sends, and before the off-hook task that triggers described port correspondence picks up counting, also comprises:
For described port is set up corresponding off-hook task, and higher limit and the lower limit of time of delay in the described off-hook task are set, be described higher limit the time of delay in the described off-hook task of initialization.
3, method as claimed in claim 2 is characterized in that, describedly adjusts described preset delay time according to described negotiation result and comprises:
When this consults failure,, then do not increase the time of delay in the off-hook task of described port correspondence if be not less than described higher limit described time of delay; Otherwise the default time interval will be increased the time of delay in the off-hook task of described port correspondence;
When this is consulted success and is not had the failure record of negotiation, if greater than described lower limit, then reduced the default time interval time of delay in the off-hook task of described port correspondence described time of delay; Otherwise do not reduce the time of delay in the off-hook task of described port correspondence;
When this is consulted success and the failure record of negotiation is arranged, do not change the time of delay in the described off-hook task.
As each described method in the claim 1 to 3, it is characterized in that 4, described determination methods of consulting successfully or consulting failure is:
Behind the described port off-hook, detect whether receive the carrier wave that opposite end POS equipment sends; Judge when not detecting and consult failure, otherwise continue;
When detecting the carrier wave that described opposite end POS equipment sends, send handshake information to described opposite end POS equipment, receive that described opposite end POS equipment sends to correct responses of described handshake information the time, judge and consult successfully, fail otherwise be judged as negotiation.
5, as each described method in the claim 1 to 3, it is characterized in that for different ports, preset delay time is identical or different.
6, a kind of POS access device is characterized in that, comprising:
The timing trigger element is used for when port receives the ringing-current that network side exchange device sends, and the off-hook task that triggers described port correspondence picks up counting;
The off-hook TU task unit, corresponding with described port, be used for after the triggering of described timing trigger element, picking up counting;
Consult trigger element, be used for when the timing of described off-hook TU task unit arrives preset delay time, trigger described port off-hook and hold consultation with opposite end POS equipment;
Delay time adjusting is used for adjusting described preset delay time according to the negotiation result of described negotiation trigger element.
7, POS access device as claimed in claim 6 is characterized in that, also comprises:
Off-hook task creation unit is used to port to set up corresponding off-hook task, and higher limit and the lower limit of time of delay in the described off-hook task is set, and be described higher limit the time of delay in the described off-hook task of initialization.
8, POS access device as claimed in claim 7 is characterized in that, described delay time adjusting comprises:
Adjust subelement first time of delay, is used for when this consults failure, if be not less than described higher limit described time of delay, then do not increase the time of delay in the off-hook task of described port correspondence; Otherwise the default time interval will be increased the time of delay in the off-hook task of described port correspondence;
Adjust subelement second time of delay, is used for when this is consulted success and does not have the failure record of negotiation, if greater than described lower limit, then reduced the default time interval time of delay in the off-hook task of described port correspondence described time of delay; Otherwise do not reduce the time of delay in the off-hook task of described port correspondence;
Adjust subelement the 3rd time of delay, is used for not changing the time of delay in the described off-hook task when this is consulted success and the failure record of negotiation is arranged.
9, as each described POS access device in the claim 6 to 8, it is characterized in that described negotiation trigger element specifically is used for, when holding consultation, behind described port off-hook, detect whether receive the carrier wave that opposite end POS equipment sends with opposite end POS equipment; Judge when not detecting and consult failure, otherwise continue; When detecting the carrier wave that described opposite end POS equipment sends, send handshake information to described opposite end POS equipment, receive that described opposite end POS equipment sends to correct responses of described handshake information the time, judge and consult successfully, fail otherwise be judged as negotiation.
CN2008101832315A 2008-12-17 2008-12-17 POS access equipment and off-hook method thereof Expired - Fee Related CN101437180B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008101832315A CN101437180B (en) 2008-12-17 2008-12-17 POS access equipment and off-hook method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008101832315A CN101437180B (en) 2008-12-17 2008-12-17 POS access equipment and off-hook method thereof

Publications (2)

Publication Number Publication Date
CN101437180A true CN101437180A (en) 2009-05-20
CN101437180B CN101437180B (en) 2012-04-18

Family

ID=40711363

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008101832315A Expired - Fee Related CN101437180B (en) 2008-12-17 2008-12-17 POS access equipment and off-hook method thereof

Country Status (1)

Country Link
CN (1) CN101437180B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102915600A (en) * 2012-09-20 2013-02-06 无锡华御信息技术有限公司 Fore-POS (point of sale) system and method convenient for function extension
CN103825653A (en) * 2014-01-22 2014-05-28 深圳市新国都技术股份有限公司 Infrared data transmission method used in financial POS
CN111143265A (en) * 2019-12-30 2020-05-12 锐捷网络股份有限公司 Data transmission method and device based on virtual machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2243145Y (en) * 1995-07-15 1996-12-18 陈彦平 Device for preventing from shaking while hanging-up and fraudulent use of telephone by patting hookswitch

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102915600A (en) * 2012-09-20 2013-02-06 无锡华御信息技术有限公司 Fore-POS (point of sale) system and method convenient for function extension
CN102915600B (en) * 2012-09-20 2014-10-08 无锡华御信息技术有限公司 Fore-POS (point of sale) system and method convenient for function extension
CN103825653A (en) * 2014-01-22 2014-05-28 深圳市新国都技术股份有限公司 Infrared data transmission method used in financial POS
CN103825653B (en) * 2014-01-22 2016-05-11 深圳市新国都技术股份有限公司 A kind of infrared data transmission method for financial POS
CN111143265A (en) * 2019-12-30 2020-05-12 锐捷网络股份有限公司 Data transmission method and device based on virtual machine

Also Published As

Publication number Publication date
CN101437180B (en) 2012-04-18

Similar Documents

Publication Publication Date Title
JP3007907B2 (en) A communication switching mechanism that provides programmable communication services
US5136585A (en) Digital key telephone system
USRE40135E1 (en) Audio conferencing system
US4615028A (en) Switching system with separate supervisory links
US5649005A (en) PC with telephony exchange function
JPH11175491A (en) Multi-bus multiplex communication adaptor for dsp base
WO2006019512B1 (en) Apparatus and method for supporting connection establishment in an offload of network protocol processing
JPH06350717A (en) Telephone call processing system
JPS59143490A (en) Communication exchange device
CN102202132B (en) Method, system and equipment for initializing networking equipment
CN101437180B (en) POS access equipment and off-hook method thereof
JPH03273352A (en) On-line information processor
EP0331838B1 (en) Digital key telephone system
US6452937B1 (en) Card-based voice messaging system
US6507648B1 (en) Method and apparatus for prioritizing voice and data in a circuit-switched network
US20050180455A1 (en) Apparatus and method for multiplexing communication signals
JPH0417518B2 (en)
CN1163083C (en) Digital signal and instruction treatment device for program controlled switchboard
GB2326305A (en) Local exchange testing
CN101847300B (en) Parameter consultation method and equipment for accessing POS terminal access interface of server
JPS58196748A (en) Protocol conversion system for line switching
KR100523487B1 (en) Apparatus for IP/PSTN switching in a home gateway system and method thereof
KR100405851B1 (en) Method for Performance Advancing of Message Handling in No.7 Signaling Network
CN111866294A (en) Implementation method of self-exchange function and IAD equipment
JP2921196B2 (en) Primary group interface attribute setting 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
CP03 Change of name, title or address

Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No.

Patentee after: Xinhua three Technology Co., Ltd.

Address before: 310053 Hangzhou hi tech Industrial Development Zone, Zhejiang province science and Technology Industrial Park, No. 310 and No. six road, HUAWEI, Hangzhou production base

Patentee before: Huasan Communication Technology Co., Ltd.

CP03 Change of name, title or address
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120418

Termination date: 20191217

CF01 Termination of patent right due to non-payment of annual fee