CN102055857A - Packet switching-based digital multi-channel director system and control method thereof - Google Patents
Packet switching-based digital multi-channel director system and control method thereof Download PDFInfo
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- CN102055857A CN102055857A CN 200910188236 CN200910188236A CN102055857A CN 102055857 A CN102055857 A CN 102055857A CN 200910188236 CN200910188236 CN 200910188236 CN 200910188236 A CN200910188236 A CN 200910188236A CN 102055857 A CN102055857 A CN 102055857A
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Abstract
The invention discloses a packet switching-based digital multi-channel director system and a control method thereof. The system comprises an access control server, an audio acquisition server and a multi-channel director work station which form a local area network through interconnection; the access control server is connected with a telecommunication office switch through an E1 line; and the multi-channel director work station is connected with a radio station sound console through an input/output audio line and is connected with a telephone for the director through a foreign exchange station (FXS) interface. The control method comprises the following steps of: starting to initialize the system, and allocating hotline numbers of a telecommunication office to various channels of the radio station; waiting for a call from the E1 line; developing a call processing process in the process of call admission; judging whether the access control server is stopped being controlled, and if the control is ended, ending the main process. A telephone coupler is not needed, the control is convenient, the access quantity is large and the system and the method are stable and reliable; and the function of a short message platform is integrated, so that the director and a compere can simultaneously control the telephone and messages through the same interface, the invention is convenient to use, and rich statistical functions are provided for the radio station.
Description
Technical field
The present invention relates to radio station instructor in broadcasting's control technology of the communications field, a kind of specifically digital multi-channel instructor in broadcasting system and control method thereof based on packet switch.
Background technology
Hotline is the important means that present radio programmes is live, the audience is interactive, it is main that but present broadcasting station instructor in broadcasting's device still adopts the mode of telephone coupler, this processing mode has following shortcoming: 1. provide limited several simulative telephone interfaces, cause " beating the hot line difficulty "; 2. can't embody how many audiences and make hot line by the line is busy, have how many audiences to be ready participation on earth so the radio station also just can't count certain column; 3. the simulative telephone interface probability of natural calamity such as be struck by lightning is bigger, and there is serious potential threat in the radio station normal operation; 4. exchange inconvenience between host and the instructor in broadcasting, can only finish interchange by gesture or dialogue; 5. can't have audience's hotline according to the program needs and select to answer; 6. can not shield known malicious call.So telephone coupler can not satisfy radio station and the audience demand to this form of programs of hotline as a kind of traditional instructor in broadcasting's equipment.
In order to address these problems, introduced CTI (Computer TelephonyIntegration in recent years, computer telephone integration) mode that is used of integrated circuit board and telephone coupler, this mode can allow instructor in broadcasting and host see caller ID, but this mode still be unable to do without telephone coupler, and this mode is the interim solution that is structured in progressively on the CTI technology of being eliminated by telecommunications industry, in systemic-function, can expand, still have considerable restraint in the flexibility.
Summary of the invention
At above shortcomings part in the prior art, the technical problem to be solved in the present invention provides that a kind of conversation based on digital form is clear, signaling control accurately, antijamming capability is strong, the access amount is big and the operation intuitive and convenient digital multi-channel instructor in broadcasting system and control method thereof based on packet switch.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Accessing control server, audio collection server and multichannel instructor in broadcasting work station are drawn together by the digital multi-channel instructor in broadcasting system that the present invention is based on packet switch, and the three is by interconnected composition local area network (LAN), and accessing control server connects telecommunication bureau's switch by the E1 line; Wherein multichannel instructor in broadcasting work station connects the radio station sound console by the I/O tone frequency channel wire, connects the instructor in broadcasting by the FXS interface and uses telephone set.
Multichannel instructor in broadcasting's work station constitutes a machine separate double input/dual output mode of operation by two video cards, PS/2 interface and USB interface.
A described machine separate double input/dual output mode of operation realizes by following process: two separate video cards, double-H groove weld SB interface and PS/2 interface are arranged on multichannel instructor in broadcasting's work station, the multi-seat configuration mode carries out correspondence with this two covers display, keyboard and mouse under the use Linux, independent operation is independent of each other each other.
Described audio collection server has the multichannel voice frequency input/output interface, connects radio station master control room audio frequency input/output interface by tone frequency channel wire respectively.
The present invention is based on the control method of the digital multi-channel instructor in broadcasting system of packet switch, may further comprise the steps:
Beginning, system initialization, the IP address of configuration accessing control server, audio collection server and multichannel instructor in broadcasting work station is interconnected the three; And with the hotline number assignment of telecommunication bureau each channel to the radio station;
Wait for the E1 line call-up;
Have and call out when entering, open up the call treatment process;
Do you judge whether finishing control of accessing control server?
If finishing control, then host process finishes;
Open up the call treatment process and comprise following process:
Accessing control server is handled calling, determines target channel according to caller ID, and the E1 signaling is changed into the SIP/RTP Frame, delivers to multichannel instructor in broadcasting's work station of target channel correspondence by local area network (LAN);
Multichannel instructor in broadcasting's work station receives the calling that accessing control server is sent here, and instructor in broadcasting's formation is inserted in this calling;
The instructor in broadcasting handles this calling as required;
When the instructor in broadcasting changed this calling over to the host formation, the host handled according to the program needs;
If will not call out after the host handles and go back to instructor in broadcasting's formation again, but hang up, then the call treatment process finishes, and preserves this call record.
Do not call out if the host is hung up this time, then go to the host and treatment step is carried out in this calling according to the program needs;
Perhaps, change instructor in broadcasting's formation again over to, then go to the instructor in broadcasting and as required treatment step is carried out in this calling if the host will call out;
Perhaps, change this calling over to the host formation if the instructor in broadcasting is provided with, but hang up, then this time the call treatment process finishes;
Perhaps, change this calling over to the host formation if the instructor in broadcasting is provided with, also do not hang up, the instructor in broadcasting that then continues carries out treatment step to this calling as required.
Described instructor in broadcasting controls this calling as required and comprises: converse, put wait, hang up, mark, change host's formation over to and add blacklist;
Perhaps, described host is treated to single channel according to the program needs and handles, and comprising: insert/pick out sound console, hang up, mark, change instructor in broadcasting's formation over to and add blacklist.
Perhaps described host is treated to multichannel according to the program needs and handles, automatically switch into the videoconference mode of operation, this mode of operation comprises: insert/pick out sound console, hang up, mark, change instructor in broadcasting's formation over to, add blacklist, locking conversation, quiet, (instrumental) ensemble and solo; Realize " quiet ", " solo ", " He Zou " operation by software audio mixing and audio mixing control algolithm.
Described hotline number assignment to the method for each channel in radio station is: carry out corresponding with the IP address of multichannel instructor in broadcasting work station telephone number.
The present invention is further comprising the steps of: judgement have call out enter after, continue and whether judge caller ID by the blacklist inspection, if by the blacklist inspection, then continue and open up call treatment and carry out step; Otherwise E1 line call-up step such as return.
Described accessing control server is received and dispatched note by Short Message Service Gateway, and is presented at instructor in broadcasting and host's terminal; Described accessing control server according to the call record of hotline count the every day of each column, weekly, every month call volume and note amount, call duration, calling charge.
The present invention has following beneficial effect and advantage:
1. computer instructor in broadcasting function: the present invention shows the information such as calling number, incoming call order, call state of all audiences' incoming calls by terminal display for instructor in broadcasting and host, instructor in broadcasting and host can carry out various callings according to these information and control.It is to insert the radio station machine room by optical fiber from telecommunication bureau's machine room that phone inserts, adopt then based on the IP communication technology of local area network (LAN) and deliver between each instructor in broadcasting, be connected to sound console by the input and output of sound card numeral at last, the dispense with telephone coupler has characteristics such as sound is clear, control is convenient, the access amount is big and reliable and stable.
2. SMS platform function
SMS platform function that the present invention is integrated makes instructor in broadcasting and host to control phone and note simultaneously by an interface, the convenient use; In addition, the present invention also provides the note instructor in broadcasting function, changes the past instructor in broadcasting and can't see note, has only the shortcoming of host oneself screening note, and the instructor in broadcasting can give the host for the host selects special sign of some valuable notes in native system.
3. function of statistic analysis
The present invention provides abundant statistical function for the radio station, can count the every day of each column, weekly, call volume of every month, call duration, calling charge etc., can satisfy audience's interaction demand by adjusting modes such as welcome program duration by these statistics radio station, provide scientific basis for program of radio station is provided with decision-making work.In addition, native system also carries out the expense statistics respectively to advertiser's outgoing call, is convenient to management and cost control.SMS also provides the expense statistics in the native system, prevents that effectively radio messaging partner from conceaing the problem of understatement note amount.The note statistics can also be convenient to formulate note incentive policy etc. specific to certain column note income statistics of certain frequency.
Description of drawings
Fig. 1 is a system configuration composition diagram of the present invention;
Fig. 2 is that system applies of the present invention is in the connection layout of instructor in broadcasting's direct broadcasting room;
Fig. 3 is the inventive method control procedure flow chart;
Fig. 4 connects call flow diagram for host in the inventive method;
Fig. 5 is a specific embodiment of the invention procedure chart.
Embodiment
As shown in Figure 1, a kind of digital multi-channel instructor in broadcasting system based on packet switch of the present invention comprises following part: accessing control server, audio collection server, multichannel instructor in broadcasting's work station.Described accessing control server, audio collection server and multichannel instructor in broadcasting work station are connected to form local area network (LAN) by twisted-pair feeder and switch.
Wherein accessing control server is to link to each other with the telecommunication bureau switch by the E1 line, is responsible for the access-in management of note and phone;
The audio collection server is meant to be gathered the radio station in progress broadcasting of each channel and preserve, so that the audience carries out that program request is listened to and as the foundation of radio station assessment program quality; The audio collection server has the multichannel voice frequency input/output interface, connects radio station master control room audio frequency input/output interface by tone frequency channel wire respectively.
Multichannel instructor in broadcasting's work station is made up of multichannel instructor in broadcasting server, instructor in broadcasting's terminal, telephone set, host's terminal, it will show from the information that accessing control server transmits and handle, and the responsible communication on telephone of handling between host or instructor in broadcasting and the audience, have the function that exchanges between host and the instructor in broadcasting simultaneously; Multichannel instructor in broadcasting's work station constitutes a machine separate double input/dual output mode of operation by two video cards, PS/2 interface and USB interface, realize by following process: two separate video cards are arranged on multichannel instructor in broadcasting's work station, the two can support VGA, DVI and HDMI interface simultaneously, and distributing by these interfaces connects two displays; Multichannel instructor in broadcasting's work station can be supported two cover mouse and keyboards by PS/2 interface and USB-HUB interface, and mouse that is connected with the PS/2 interface and keyboard are to distribute to the instructor in broadcasting to use, and mouse that is connected with USB interface and keyboard are to distribute to the host to use; The multi-seat configuration mode carries out correspondence with this two covers display, keyboard and mouse under the interior use of the multichannel instructor in broadcasting's work station linux, and independent operation is independent of each other each other.
As shown in Figure 2, instructor in broadcasting's terminal (between the instructor in broadcasting) is made up of display, mouse and keyboard; Telephone set links to each other by the FXS interface of telephone wire with multichannel instructor in broadcasting server; Host's terminal (direct broadcasting room) is made up of display, mouse and keyboard; Multichannel instructor in broadcasting's server links to each other the audio frequency input and output by sound card with the sound console of direct broadcasting room.
Described multichannel instructor in broadcasting's work station is responsible for phone formation and the call management relevant with this channel.Described multichannel instructor in broadcasting's work station is safeguarded two work queues: instructor in broadcasting's formation and host's formation.The new incoming call of audience is transferred to multichannel instructor in broadcasting work station by accessing control server, and multichannel instructor in broadcasting's work station puts it into instructor in broadcasting's work queue, and shows in host's terminal and instructor in broadcasting's terminal.The instructor in broadcasting can handle the phone in instructor in broadcasting's formation; The host can handle the incoming call in instructor in broadcasting's formation and the host's formation.The instructor in broadcasting can exchange with incoming call in instructor in broadcasting's formation by telephone set.When host or instructor in broadcasting will change host's formation at the phone in instructor in broadcasting's formation over to, then the host can exchange with the audience with headset by the broadcast microphone of sound console.
As shown in Figure 3, the control method of a kind of digital multi-channel instructor in broadcasting system based on packet switch of the present invention may further comprise the steps:
(1) beginning, system initialization, the IP address of configuration accessing control server, audio collection server and multichannel instructor in broadcasting work station is interconnected the three; And with the hotline number assignment of telecommunication bureau each channel to the radio station;
Accessing control server is at first determined target channel according to caller ID, and the E1 signaling is changed into the SIP/RTP Frame, delivers to multichannel instructor in broadcasting's work station of target channel correspondence by local area network (LAN).
E1 enters the back and adopts E1 to Session Initiation Protocol transfer gateway technology that ISDN PRI or signalling system No.7 are converted to VoIP package based on SIP/RTP, call out route according to default dialing rule, calling will be sent on pairing each frequency work station of called number.
(2) wait for the E1 line call-up, when the E1 circuit has calling to enter, judge whether by the blacklist inspection;
(3) if by the blacklist inspection, then open up the call treatment process, step is as follows:
(31) accessing control server is handled calling, determines target channel according to caller ID, and the E1 signaling is changed into the SIP/RTP Frame, delivers to multichannel instructor in broadcasting's work station of target channel correspondence by local area network (LAN);
(32) multichannel instructor in broadcasting work station receives the calling that accessing control server is sent here, and instructor in broadcasting's formation is inserted in this calling;
Multichannel instructor in broadcasting's work station at each channel has two formations, one is instructor in broadcasting's formation, one is host's formation, the call signal of bringing from accessing control server at first is admitted to instructor in broadcasting's formation, the instructor in broadcasting can see the tabulation of all-calls from the display interface of instructor in broadcasting's terminal, comprises information such as caller ID, call state and call duration.
(33) instructor in broadcasting handles this calling as required;
The instructor in broadcasting handles this calling as required and comprises: converse, put wait, hang up, mark, change host's formation over to and add blacklist.When selecting conversation, can use the phone on the FXS interface to exchange with the audience.In addition, the instructor in broadcasting also can use the making call outside line, and this is called out access instructor in broadcasting formation.
(34) when the instructor in broadcasting changed this calling over to the host formation, the host handled according to the program needs;
After calling changed host's formation over to, the host carried out call treatment by host's terminal display interface, comprised that single channel is handled and multichannel is handled, and wherein single channel is handled and comprised and insert/pick out sound console, hang up, mark, change instructor in broadcasting's formation over to and add blacklist; Multichannel is handled and to be comprised: insert/pick out sound console, hang up, mark, change instructor in broadcasting's formation over to, add blacklist, locking conversation, quiet, (instrumental) ensemble and solo.
As shown in Figure 4, when the host selected to connect selected incoming call, system at first judged current whether ongoing conversation is arranged, if do not have, then directly conversed with selected incoming call; If current existing ongoing conversation then directly enters the telephone conversation mode of operation.
(35) do not go back to instructor in broadcasting's formation again if the host will not call out, but hang up, then the call treatment process finishes, and preserves this call record.
(36) after the host is hung up this calling, send the SIP signaling to accessing control server, finish this conversation, and preserve the detail record of this time calling by multichannel instructor in broadcasting work station.
(37) if the host is not hung up this time to be called out, then go to the host and treatment step is carried out in this calling according to the program needs.
(38) change instructor in broadcasting's formation again over to if the host will call out, then go to the instructor in broadcasting and as required treatment step is carried out in this calling.
(39) if the instructor in broadcasting does not change this calling over to the host formation, then judge whether this calling is hung up, if do not hang up, then go to the instructor in broadcasting and as required controlled step is carried out in this calling; If hang up, then finish this calling.
(4) if finish this time to call out control, then call control procedure this time finishes; Otherwise go to step (2) and wait for the E1 line call-up.
(5) if not by the blacklist inspection, perhaps calling does not enter, and then goes to step (2) and waits for the E1 line call-up.
Described hotline number assignment to the method for each channel in radio station is: carry out corresponding with the IP address of multichannel instructor in broadcasting work station telephone number.Corresponding method is at first employed multichannel instructor in broadcasting's work station in each channel to be registered in accessing control server, finishes the correspondence between the IP address of channel and multichannel instructor in broadcasting work station; Mode that then can be by adding telephone number with the hotline number with register to channel in the system and carry out correspondingly, so just finished the corresponding relation between the IP address of hotline number and multichannel instructor in broadcasting work station.
In the inventive method, accessing control server can also be received and dispatched note by Short Message Service Gateway, and is presented at instructor in broadcasting and host's terminal.After receiving note from Short Message Service Gateway, at first record in the database, be forwarded to corresponding channel work station and be shown to the instructor in broadcasting or the host according to default note number or short message content then, the instructor in broadcasting can carry out mark to some note needs special concern with this note of prompting host.Note adopts CMMP in the present embodiment, and the self-defined TCP communication protocol of SGIP or T is finished reception.
When the host is treated to the multichannel processing according to the program needs, automatically switch into the videoconference mode of operation, this mode of operation realizes that by software audio mixing and audio mixing control algolithm the host can carry out " quiet ", " solo ", " He Zou " operation.Method is with corresponding one " passage " of each road hotline.When the host is conference model with the work at present mode switch, system carries out the software audio mixing on N-1 road for N participant of current videoconference, process is as follows: for each passage of videoconference, system is from other N-1 participant's of current videoconference passage, take out the speech data of a frame respectively, system carries out the software audio mixing for the N-1 frame speech data that takes out then, obtains a frame audio mixing speech data, and this frame speech data is sent in prepass.What hear N participant of videoconference like this is exactly the audio mixing of N-1 paths.The host is according to the program needs, may carry out quiet operation to the participant of a tunnel or multichannel of videoconference.Multichannel instructor in broadcasting's work station is realized by the audio mixing control algolithm, process is as follows: for each passage, system is from other N-1 participant's of current videoconference passage, take out a frame speech data respectively, and will be in the speech data that takes out the passage of mute state from those and be changed to 0, system's this N-1 frame speech data that will take out carries out the software audio mixing then, and the speech data frame behind the audio mixing is sent in this passage.So just finished to one the tunnel or the multichannel participant carry out quiet operation.
Described accessing control server is received and dispatched note by Short Message Service Gateway, and is presented at instructor in broadcasting and host's terminal; Accessing control server according to the call record of hotline count the every day of each column, weekly, every month call volume and note amount, call duration, calling charge etc.
Below with closing of the circuit process shown in Figure 5 be example the present invention is described in detail, specific as follows:
The audience dials the hot line number and prepares to participate in program interaction;
Telecommunication bureau handles this number, and prompt tone is being connected in loopback;
Telecommunication bureau gives accessing control server with this incoming call by Optical Fiber Transmission;
Accessing control server is forwarded to corresponding multichannel instructor in broadcasting's work station according to access code with it;
After multichannel instructor in broadcasting's work station is received this notice, with its be presented at instructor in broadcasting and host's terminal and etc. pending;
The instructor in broadcasting connects it by mouse action after seeing this incoming call, so begin ring at the telephone set on instructor in broadcasting next door;
The instructor in broadcasting picks up the telephone, and beginning exchanges with the audience;
After the instructor in broadcasting exchanged with the audience and finishes, audience's incoming call was set to wait for;
The instructor in broadcasting changes it over to host formation;
When the audience enters in host's formation, will hear the broadcast content of the current frequency in broadcasting station, point out the audience soon to exchange with this with the host;
The host connects this incoming call, and then the audience exchanges with the host;
Exchange after the end, the host is hung up incoming call, and conversation is so far just finished, and preserves this call record.
Claims (12)
1. digital multi-channel instructor in broadcasting system based on packet switch, it is characterized in that: comprise accessing control server, audio collection server and multichannel instructor in broadcasting work station, the three is by interconnected composition local area network (LAN), and accessing control server connects telecommunication bureau's switch by the E1 line; Wherein multichannel instructor in broadcasting work station connects the radio station sound console by the I/O tone frequency channel wire, connects the instructor in broadcasting by the FXS interface and uses telephone set.
2. by the described digital multi-channel instructor in broadcasting system based on packet switch of claim 1, it is characterized in that: multichannel instructor in broadcasting's work station constitutes a machine separate double input/dual output mode of operation by two video cards, PS/2 interface and USB interface.
3. by the described digital multi-channel instructor in broadcasting system of claim 2 based on packet switch, it is characterized in that: a machine separate double input/dual output mode of operation realizes by following process: two separate video cards, double-H groove weld SB interface and PS/2 interface are arranged on multichannel instructor in broadcasting's work station, and the multi-seat configuration mode carries out correspondence with this two covers display, keyboard and mouse under the use Linux.
4. by the described digital multi-channel instructor in broadcasting system based on packet switch of claim 1, it is characterized in that: described audio collection server has the multichannel voice frequency input/output interface, connects radio station master control room audio frequency input/output interface by tone frequency channel wire respectively.
5. control method based on the digital multi-channel instructor in broadcasting system of packet switch is characterized in that may further comprise the steps:
Beginning, system initialization, the IP address of configuration accessing control server, audio collection server and multichannel instructor in broadcasting work station is interconnected the three; And with the hotline number assignment of telecommunication bureau each channel to the radio station;
Wait for the E1 line call-up;
Have and call out when entering, open up the call treatment process;
Do you judge whether finishing control of accessing control server?
If finishing control, then host process finishes;
Open up the call treatment process and comprise following process:
Accessing control server is handled calling, determines target channel according to caller ID, and the E1 signaling is changed into the SIP/RTP Frame, delivers to multichannel instructor in broadcasting's work station of target channel correspondence by local area network (LAN);
Multichannel instructor in broadcasting's work station receives the calling that accessing control server is sent here, and instructor in broadcasting's formation is inserted in this calling;
The instructor in broadcasting handles this calling as required;
When the instructor in broadcasting changed this calling over to the host formation, the host handled according to the program needs;
If will not call out after the host handles and go back to instructor in broadcasting's formation again, but hang up, then the call treatment process finishes, and preserves this call record.
6. by the control method of the described digital multi-channel instructor in broadcasting system based on packet switch of claim 5, it is characterized in that:
Do not call out if the host is hung up this time, then go to the host and treatment step is carried out in this calling according to the program needs;
Perhaps, change instructor in broadcasting's formation again over to, then go to the instructor in broadcasting and as required treatment step is carried out in this calling if the host will call out;
Perhaps, change this calling over to the host formation if the instructor in broadcasting is provided with, but hang up, then this time the call treatment process finishes;
Perhaps, change this calling over to the host formation if the instructor in broadcasting is provided with, also do not hang up, the instructor in broadcasting that then continues carries out treatment step to this calling as required.
7. by the control method of the described digital multi-channel instructor in broadcasting system based on packet switch of claim 5, it is characterized in that: described instructor in broadcasting controls this calling as required and comprises: converse, put waits, hang up, mark, change host's formation and adding blacklist over to;
Perhaps, described host is treated to single channel according to the program needs and handles, and comprising: insert/pick out sound console, hang up, mark, change instructor in broadcasting's formation over to and add blacklist.
8. by the control method of the described digital multi-channel instructor in broadcasting system based on packet switch of claim 5, it is characterized in that: described host is treated to multichannel according to the program needs and handles, automatically switch into the videoconference mode of operation, this mode of operation comprises: insert/pick out sound console, hang up, mark, change instructor in broadcasting's formation over to, add blacklist, locking conversation, quiet, (instrumental) ensemble and solo; Realize " quiet ", " solo ", " He Zou " operation by software audio mixing and audio mixing control algolithm.
9. by the control method of the described digital multi-channel instructor in broadcasting system based on packet switch of claim 5, it is characterized in that: described hotline number assignment to the method for each channel in radio station is: carry out corresponding with the IP address of multichannel instructor in broadcasting work station telephone number.
10. by the control method of the described digital multi-channel instructor in broadcasting system based on packet switch of claim 5, it is characterized in that: further comprising the steps of: after judgement has calling to enter, continue and judge that whether caller ID is by the blacklist inspection, if by the blacklist inspection, then continue and open up call treatment and carry out step; Otherwise E1 line call-up step such as return.
11. by the control method of the described digital multi-channel instructor in broadcasting system based on packet switch of claim 5, it is characterized in that: described accessing control server is received and dispatched note by Short Message Service Gateway, and is presented at instructor in broadcasting and host's terminal.
12. the control method by the described digital multi-channel instructor in broadcasting system based on packet switch of claim 5 is characterized in that: described accessing control server according to the call record of hotline count the every day of each column, weekly, every month call volume and note amount, call duration, calling charge.
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| US5918013A (en) * | 1996-06-03 | 1999-06-29 | Webtv Networks, Inc. | Method of transcoding documents in a network environment using a proxy server |
| CN2669517Y (en) * | 2004-01-08 | 2005-01-05 | 王旸 | Broadcasting station multi-channel presentation-guiding device |
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| CN106341512A (en) * | 2016-01-20 | 2017-01-18 | 北京永安博技术有限公司 | Telephone access system and method supporting network control and call recording |
| CN106899578A (en) * | 2017-01-24 | 2017-06-27 | 上海东方传媒技术有限公司 | Hot-line telephone system and method |
| CN109976691A (en) * | 2019-03-29 | 2019-07-05 | 联想(北京)有限公司 | A kind of information processing method, device, equipment and storage medium |
| CN110620897A (en) * | 2019-09-30 | 2019-12-27 | 国网山东省电力公司信息通信公司 | Multifunctional telephone conference system and method |
| CN110620897B (en) * | 2019-09-30 | 2021-02-02 | 国网山东省电力公司信息通信公司 | Multifunctional telephone conference system and method |
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