RU2259018C2 - Corporative communication system - Google Patents

Abstract

FIELD: communication systems.

SUBSTANCE: system has commutated phone network and packet data transfer network Internet, control means, connected to Internet and made with possible determining of preferred route for phone calls through commutated phone network, and/or Internet, connection means, connected to commutated phone network, controlled by said control means, Internet-phone gateways, which are connected to commutated phone network and Internet network, and also authentication server, connected to Internet network.

EFFECT: higher efficiency, broader functional capabilities.

16 cl, 2 dwg

Description

The invention relates to communication systems and is primarily intended for organizing telephone communications of offices, organizations and enterprises whose activities are associated with lengthy long-distance and international telephone conversations and where there is a need to reduce the cost of these telephone conversations and ensure the quality and uninterrupted operation of telephone communications.

The dynamic development of science and the global economy dictates the need for quick information, exchange of information, coordination of actions, adoption of optimal decisions, etc., which forces humanity to look for ways to implement increasingly fast and ramified communications. For these purposes, various communication systems are used. For example, the oldest communication system is the telephone network. In recent years, communication systems have been developing particularly intensively. Thus, a communication system is known that provides direct voice access to remote computers containing information databases [US Patent No. 4872197]. Access to remote computers in this system is provided by means of a telephone network, through which information obtained from databases is displayed on a user's telephone in the form of human speech.

In connection with the emergence and development of the global packet-transmission Internet, the possibilities for communication have expanded significantly. Through this network, information can be transmitted both to the user's computer in graphical form, and to his phone with the appropriate equipment. So, for example, a known system for communicating via the Internet, which uses a telephone to send and receive voice signals [US Patent No. 6141341].

Also known is a communication system transmitting voice signals, including a dial-up telephone network and packet-transmission Internet [US Patent No. 6122255]. This system minimizes the congestion of telephone lines, directing part of the calls over the packet-transmission network to subscribers with similar systems installed. The system combines computers and telephone sets, therefore, a signal (telephone call) can be transmitted over a switched telephone network or via the Internet from one telephone to another telephone connected to the described system. The communication system includes a control means and a connection means, the control means determining which network the telephone calls should go through, and the connecting means connects the system elements in such a way as to fulfill the instruction of the control system. The system also contains a converter that converts the analog signal to digital when making phone calls over the Internet and, accordingly, the inverse conversion, i.e. said means performs the functions of Internet telephony gateways. Internet telephony gateways are servers or devices with appropriate software that translate the sound signals of the public telephone network into Internet packets and vice versa, as well as route these signals.

All known communication systems have the following disadvantages:

- firstly, they do not provide for individual optimization of the route of the calls at their cost or according to other criteria important for each individual user, therefore the quality and cost of phone calls are often unsatisfactory in individual directions, which is especially undesirable for organizations whose activities involve with a large volume of telephone conversations;

- secondly, the impossibility of sending calls over the Internet to subscribers connected to the network in the traditional way, without additional equipment;

- thirdly, the impossibility of corporate use of the communication system, since it is impossible to connect several phones to one system;

- fourthly, the impossibility of internal switching of telephone channels within the office, enterprise, organization;

- fifth, their unsuitability for countries (including Russia), where local telephone calls are not charged, and Internet charges are levied, and is charged according to the amount of information passed;

- sixth, the operability of alternative systems is provided by one communication provider, which can dictate its tariffs and routing conditions, which makes users dependent on one provider;

- Seventh, uninterrupted operation of the system is not ensured (signal direction through alternative communication providers is not provided if the main one is busy).

The invention solves the problem of creating such a communication system that would individually configure and optimize the route of each telephone call at its cost, quality or other parameters important to the user (connection speed, personal preferences, etc.), and for each of these users these preferences may be different. In addition, the invention solves the following additional tasks:

- the ability to send phone calls over the Internet to subscribers connected to the network in the traditional way,

- the possibility of corporate use,

- the possibility of internal switching of telephone channels within the office,

- suitability in those countries where local telephone communication is free, and communication via Internet channels is paid (and is charged according to the amount of information passed),

- the ability to independently configure routing by each individual user through several different communication providers (independence from one provider),

- uninterrupted operation of the system in case of busy or unavailable communication through the main provider

The problem is solved by the fact that the proposed communication system, which includes: interconnected dial-up telephone network and packet data network Internet, at least one control tool associated with the named Internet network, which is configured to determine the preferred route for making telephone calls either through a switched telephone network, or through the Internet, or through a switched telephone network and the Internet, depending on personal rooks of users, and at least one means of connection associated with office telephone equipment, with a switched telephone network and with said management tool, as well as gateways of different Internet telephony providers connected to a switched telephone network and the Internet, and, in addition to in addition, at least one authorization server connected to the Internet, which is configured to provide information on the availability and location of controls available to Internet gateways telephony and the cost of telephone calls passing through them, authorize connections and track phone calls through Internet telephony gateways, accounting and logging of recorded phone calls.

As a switched telephone network, both analog and digital telephone networks or a combination thereof can be used.

As one of the options, the connection means can be made comprising a control unit that connects to the control means via the event reporting channel and a control channel of the connection means, as well as a switch that connects to the control unit through the event monitoring channels and the control channel of the switch, and means of control - through sound channels. This connection means may also comprise a converter converting the signals traveling through the audio channels from the switch to the control means.

A dial-up telephone network and the Internet can be connected through several servers or Internet telephony gateways belonging to different providers.

A switched telephone network can be arranged so that each telephone number is connected directly to a common telephone network and can include mini-automatic telephone exchanges (automatic telephone exchanges) through which telephone numbers are connected to a common switched telephone network.

The control tool can be made in the form of a computer programmable device - a computer, which can establish telephone connections depending on the individual parameters for each user that affect the route of calls. The individual parameters for each control can be changed individually, in this case, the user sets the program the new preferred routing parameters. User-defined routes for different directions of calls can be different, both in a switched telephone network and the Internet, and combinatorially. For each direction, you can specify several connection routes (primary and secondary). If the main direction is unavailable, the connection will be made along one of the auxiliary routes.

The management tool can be combined with an Internet telephony gateway. The management tool can also be combined with a connection tool or an authorization server. Also, the management tool and Internet telephony gateways can perform separate functions of the authorization server, either individually or jointly.

A communication system may contain one or more computers.

A communication system may contain one or more Internet telephones.

The corporate communication system, a diagram of which is depicted in figure 1, includes:

- switched telephone network 40;

- packet-transmitting Internet 41;

- Internet telephony gateways 20, 21, 22, designated as CIT;

- authorization server 15;

- telephone sets of subscribers directly connected to a switched telephone network, 23;

- PBX 42,43,44;

- telephone sets of subscribers connected to a dial-up telephone network through a PBX, 26-37;

- connection means 6, 16, 18 with the following connection options:

a) the telephones of subscribers 24, 25 are directly connected to the connection means 6;

b) the telephone numbers of subscribers are connected through corporate switching means - PBXs - 42, 43 - directly to the switched telephone network 40 - telephones 26, 27, 28 or to the means of connection 16 - telephones 29, 30, 31, 32;

c) combined connection — the telephones of subscribers are connected to the means of connection 18 both via the PBX - 44 (telephones 33, 34, 35), and directly - telephones 36, 37;

- control tool 5, 17, 19;

- computer 39;

- An Internet telephone 38 connected to the Internet 41 by a communication channel of the Internet 14;

- channel switched telephone network 45.

Internet channels 14 are indicated by a dashed line. The channels of the switched telephone network 45 are indicated by a zigzag line.

During the operation of the corporate communication system for the implementation of communications, the following connection options and, accordingly, the passage of telephone calls are possible:

1. The signal passes through the channels of a switched telephone network without using a packet-transmitting Internet.

In this case, the control means directs the call to the switched telephone network through which a connection is established with the end user, for example. Tel 24-> Connection tool 6-> Dial-up telephone network 40-> Tel. 23.

2. The signal passes through the channels of packet-transmission Internet and dial-up telephone networks.

In this case, the management tool using the authorization server 15 establishes a connection with one of the Internet telephony gateways SIT 20, 21 or 22, depending on the user's individual settings. After the connection is established, the signal from the connection means enters the control means, is sent via channels through the Internet 41 to the Internet telephony gateway, which establishes a connection with the subscriber-receiver via the switched telephone network 40. In this case, the receiving party does not have to be connected to the same connection means and management tool.

For example, Tel.29 -> Mini-ATS-43 -> Means of connection 16-> Means of control-17 -> Internet 41-> SIT-21 -> Dial-up telephone network 40 -> Mini-PBX-42 -> Tel. 27.

3. The signal passes through the channels of the Internet.

In this case, the control means, both with and without the help of the authorization server 15, establishes a connection with the subscriber connected to the connection means connected to the control means. Further, the signal from the connection means enters the control means and is sent via the Internet to another control means and arrives to the subscriber-receiver connected via the connection means.

For example, Tel. 33 -> PBX 44 -> Connection tool 18 ->

Control Tool 19 -> Internet 41-> Control Tool 17 ->

Connection tool 16 -> Mini-PBX 43 -> Tel. 31

4. The signal passes through the Internet.

For example, from a personal computer 39 equipped with special software: Computer 39 -> Internet 41-> Control Tool 5 -> Connection Tool 6 -> Tel. 24 or from an Internet telephone 38: Internet telephone 38 -> Internet 41 -> Control tool 17 -> Connection tool 16 -> PBX 43 -> Tel. 32.

The authorization server 15 not only directly authorizes part of the calls, but also accumulates information about communication systems and gateways of various Internet telephony providers (and their tariffs) that are currently available. This information is forwarded to registered controls and is periodically updated. Thus, when routing a signal, the control tool makes a decision on the routing of a signal based on data received from the authorization server and depending on the individual settings of each user. If any control tool cannot independently decide on the routing of a signal, then the routing decision is made jointly with the authorization server, without waiting for the next update of information.

Figure 2 presents an example implementation of the connection means 6 and how it connects to the management tool and the authorization server. All means of connection 6, 16, 18 and others included in the communication system can be made in accordance with the diagram below.

The connection means 6 includes: a switch 1, a control unit 2, a power supply 3, and, if necessary, may include a converter 4, which converts audio signals. The connection tool 6 and the control tool 5 are interconnected via channels: control of the connection tool 12, audio streams 8, event messages 13. The authorization server 15 is connected (or combined) with the control tool through the channels of the Internet 14. The control unit 2 is connected to the switch channels: managing the switch 9 and monitoring events 10. The connection tool is connected to office telephone equipment, for example, telephones, faxes, PBX, etc. via dial-up channels 7. The connection tool works AET follows.

The switch 1 connects the telephone lines of the corporate switching means, and the number of lines connected to it can be arbitrary, Figure 2 shows 16 lines as an example. The subscriber's telephone sets or switched telephone network lines can be connected to 12 switched channels, and the remaining 4 channels of the switch can be connected to the control tool through converter 4 by means of intra-module channels of audio streams 11 and inter-module channels of audio streams 8, which ensures signal output to The Internet. Switch 1 can connect any channel to any other.

Converter 4 provides the necessary signal conversion during the passage of sound (mainly voice) streams from switch 1 to the control tool and vice versa.

The control unit 2 is connected via the channels of monitoring events 10 to 12 switched channels 7 of the switch 1, to which the telephone sets of subscribers or lines of the switched telephone network can be connected. Control unit 2 constantly monitors the status of these channels, monitoring the following events: “the handset of the subscriber’s telephone is off”, “the handset of the subscriber’s telephone is on”, “the incoming call signal from the telephone line of the telephone network”, “dialing on the telephone of the subscriber” "Hold the call or switch to the second line." The control unit 2 transmits information about these events to the control means 5 via the event reporting channel 13. The control means processes the received information through software and the control unit 2 receives information about the operation to be performed via the control channel of the connection means 12. At the signal of the control unit, the control unit through the control channel of the switch 9 transmits to the switch control signals about which channel of the switch with which (s) must be connected. Through the monitoring channels of events 10, the control unit transmits the following signals: emulation of the signal “called number is busy”, emulation of the signal “all lines of the switched network are busy”, emulation of the signal “all lines are busy”, emulation of the signal “all Internet lines are busy”, emulation of a long beep , signal generation "call", signal generation "call waiting", signal generation "additional call" (during a call) dialing.

The power supply unit 3 provides the control unit with the necessary power for emulating various events, signals and for the general power supply of telephone equipment connected to the connection means.

The authorization server performs the following functions:

- providing information on the presence / location of management tools connected to the system;

- providing information on the available gateways of different Internet telephony providers and the costs of making calls through them;

- connection authorization and call tracking through gateways of various Internet telephony providers;

- accounting and recording of all calls made for further calculations of their cost and billing to users;

- storage of individual user settings for routing rules.

The authorization server may also provide updates to the logic of operation and / or software management tools. Moreover, various functions of the authorization server can be moved and / or duplicated in controls and / or on Internet telephony gateways. For example: a) the management tool is configured to perform at least one function of the authorization server; b) the Internet telephony gateway is configured to perform at least one function of the authorization server; c) the Internet telephony gateway is configured to perform at least one function of the authorization server, and the control means is configured to perform at least one function of the authorization server.

The control tool is a computer programmable device - a computer or an electronic device with EPROM, equipped with the necessary software. The management tool is connected to the channel of the packet-transmitting Internet 41.

The management tool and the authorization server have their own software.

The management software contains the following functional modules:

- module installation and registration, which provides installation and registration of software management tools;

- an administrative module that provides the necessary configuration of equipment drivers, setting restrictions and rules of operation (setting individual routing and call direction priorities, access rights, etc.), self-testing, updating of versions, these settings can be set by users of the system independently;

- a remote client module that is responsible for exchanging data with the authorization server;

- a monitoring module that monitors the current state of the communication system, provides statistics, reports on the status of the system: by phone, by tariff, by time, etc .;

- a processing module that is responsible for the overall operation of the system; controls the routing and operation of the connection tool.

The authorization server software contains the following functional modules:

- The module of the Internet telephony provider, which provides authorization and updating of tariffs, preparation of balance reports, the possibility of authorization and temporary disconnection;

- a module for recording telephone calls, which ensures the recording of a call made through a system containing all the information related to the call (who, when, where, where, for how long called), which is then stored on the authorization server;

- a user account module that provides storage and updating of the following user information: company name, data on an individual, the number of installed communication systems (means of connection and controls), their Internet addresses, balance sheet, account data, conditions and rules authorization and routing;

- A version update module that is responsible for maintaining and synchronizing new and old versions.

Internet user software allows you to make calls from computers to phones connected through the connection tool and the management tool.

The control unit of the connection means carries out continuous monitoring - control of each channel and transmits information about their status to the control means.

Setting up a communication system (controls and means of connection), including routing rules through various gateways of various communication providers, is carried out in accordance with user-defined tasks by programming.

The system can be configured so that calls from a certain line are sent to a group of telephones, and a connection is established with the first telephone from which the receiver is picked up.

The system can be configured with an answering machine function. The identifier of a phone call (call) is the telephone number of the subscriber. The answering machine function can be implemented for any telephone number for which calls are received through this communication system. If the call signal for the telephone number configured for the answering machine function comes from the switched telephone network channel, then the control tool, having received the call signal from the control unit, decides how long to turn on the answering system function for this number (depending on the setting of the answering machine function for this particular number). At the moment when it is necessary to turn on the answering machine, the control tool reserves a free channel of sound streams and sends a signal to the switch that it is necessary to close the reserved channel of sound streams and the channel of the call line through the control unit. When the channels are closed (the control unit sends a signal about this event to the control means), the control means sends the answering machine audio signal to the reserved audio stream channel, then turns on the recording mode and records the entire information stream coming from the audio stream channel until the connection will be interrupted.

If the control failed to reserve the channel of the audio stream at the time when you want to turn on the answering machine, the control reserves the channel as soon as it is released. If the call signal for the telephone number configured for the answering machine function arrives from the Internet channel, the control tool, having received the call signal, decides how long to turn on the answering system function for this number (depending on the setting of the answering machine function for this specific number) ) At the moment when it is necessary to turn on the answering machine, the control device sends the answering machine audio signal to the call channel, then turns on the recording mode and records the entire stream of information coming from the sound stream channel until the connection is interrupted.

The system can be configured to perform the “delayed call” function if the line of the telephone set (lines of the group of telephone sets) to which the call signal is received is busy. The identifier of a phone call (call) is the telephone number of the subscriber. The “delayed call” function can be implemented for any telephone number for which calls are received through this communication system.

If for a telephone number configured for the “delayed call” function, a call signal arrives while there is already a connection on the line of this telephone number, the signal about the second incoming call is sent through the control unit to the control tool. The management tool analyzes whether there is a “delayed call” function for a given number. If there is, then the control means instructs the control unit to emulate an “additional call” signal to the subscriber line of the telephone number. If the signal “switch to the second call” comes from the subscriber’s line, the control unit (as instructed by the control means) instructs the switch to close the subscriber’s line and the second call’s line, while holding the first call’s line. After the signal arrives from the subscriber line to the control unit that the connection with the second call has ended, the control unit (as instructed by the control means) sends a signal to the switch that it is necessary to close the subscriber line and the first call line again.

The communication system operates as follows (here, as a means of connection, the means shown in FIG. 2 is used).

Outgoing phone call.

When you pick up the handset from one of the subscriber’s telephones connected to one of the switch’s channels, a signal is sent to the control unit of the connection means that the handset is off-hook. The control unit of the connection means sends a signal about this event to the control means. The control tool detects whether there are free channels to which the switched telephone network lines are connected, as well as sound stream channels through which the Internet is connected. If all channels are busy, the control sends a signal to the control unit of the control means that the signal “all lines are busy” must be sent to the telephone channel from which they were picked up. If only the channels to which the lines of the switched telephone network are connected are occupied, the control means sends a signal to the control unit of the connection means that it is necessary to send the signal: “all lines of the switched network are busy” to the channel of the telephone from which they were picked up. If only the Internet access channels are occupied, then the control means sends to the control unit of the connection means a signal that it is necessary to send the signal: “all Internet lines are busy” to the channel of the telephone from which they were picked up. If at least one of the necessary lines is free and the caller dials, the control unit of the connection tool monitors the signals of the dialed number and transfers them to the control tool, which analyzes the dialed telephone number and makes a decision, depending on the nature of the call - local, long distance, or international, of its possible cost and individual user settings, which way to send the call to the switched telephone network line or one of the channels through the Internet cut one of the gateways of Internet telephony. If the signal needs to be routed to a channel connected to a dial-up telephone network line, the control means (through the control unit of the connection tool) reserves a free channel connected to the switched telephone network. If it is not possible to reserve such a channel, the control means sends a control signal to the control unit of the control means that the signal “all lines of the switched network are busy” must be sent to the telephone channel from where the number was dialed. After the channel connected to the switched telephone network is reserved, the control means instructs the control unit of the connection to dial the called telephone number on the reserved channel connected to the switched telephone network. As soon as the dialing is completed, the control unit of the connection tool instructs the switch to connect the lines: the one to which the telephone is connected and the line of the switched telephone network to which the call signal is sent (number dialed). At the end of the connection, the control unit of the means of connection sends a signal about the event to the control means (the conversation is over), and the control means opens the closed channels of the switch through the control unit of the means of connection.

If the signal needs to be sent via the Internet, the control tool reserves a free channel for accessing the Internet (one of the inter-module channels of sound streams). If all such channels are busy, the control means sends a control signal to the control unit of the connection means that the signal “all Internet lines are busy” must be sent to the telephone channel from where the number was dialed. If at least one such channel is free, then the control means, through the control unit of the connection means, sends a signal to the switch of the connection means that it is necessary to connect the channel of the telephone from which the number is dialed and the reserved inter-module channel of sound streams through which the call is routed. In this case, a connection is established with the called subscriber via the Internet, depending on the individual user settings for routing to a particular Internet telephony gateway. If the main gateway is busy or unavailable, the signal is routed through one of the auxiliary gateways specified by the user. At the end of the connection, the control means through the control unit of the connection means opens the corresponding channels of the switch and releases the reserved inter-module channel of sound streams.

Incoming telephone call from a dial-up telephone network.

When a call signal (incoming phone call) arrives from one of the lines of the switched telephone network connected to one of the channels of the connection means switch, the control unit of the connection means recognizes this event. The control unit transmits information about this event through the channel of event messages to the control tool, which processes the received information, after which one of the following events occurs.

If at least one telephone of the group of devices for which the given signal has arrived is free, the control means transmits a ring signal for all available telephones of the group through the control unit of the connection means. As soon as the receiver is picked up on one of the phones of the group for which the call is directed, the call signal from the control unit of the connection means for the other phones of the group is terminated. The control unit of the connection means, having received a signal that the handset is off-hook, notifies the control means about this event and (according to the instructions of the control means) sends a signal to the connection means switch that it is necessary to close the incoming call line and the line of the telephone set from which the receiver. At the end of the connection, the control unit of the means of connection sends a signal about the event to the control means and (according to the instructions of the control means) sends to the switch a control signal about which channels should be opened.

If all the telephones of the group of devices for which the given signal has arrived are busy, the control means transmits a busy signal to the calling line of the switched network through the control unit of the connection means. As soon as the call signal from the channel to which the switched telephone network line is connected is terminated, the control unit of the connection means monitors this event and sends information about it to the control means.

Incoming phone call from the Internet.

When a call signal comes from the network, the following sequence of events occurs:

- the management tool reserves one of the inter-module channels of sound streams connected to the switch of the connection tool and directly to the control tool. If at least one of these channels is free, the control reserves it for connection. If all the intermodular channels of the audio streams are busy, the control means refuses the caller to establish a connection - sends a busy signal;

- the control tool checks if at least one of the telephones of the group for which the signal has arrived is free. If at least one telephone of the group for which the given signal has arrived is free, the control means transmits through the control unit of the connection means a signal about an incoming call to all available telephone sets (office switching channels) of the group. After a call is picked up from one of the called telephones of the group, the call signal from the control unit of the control means for the other telephones of the group is terminated. When one of the called subscribers answers (the telephone was picked up), the control unit of the connection tool, according to the instructions of the control tool, sends to the switch of the connection tool a signal about which channels to close, the reserved inter-module channel of sound streams and the channel of the telephone set from which the receiver was picked up. At the end of the connection, the control means, through the control unit of the means of connection, sends to the switch of the means of connection a control signal about which channels should be opened, and releases the corresponding previously reserved inter-module channel of sound streams;

- if all the phones of the group of devices for which the given signal has arrived are busy, the control means sends a busy signal to the calling subscriber via the Internet.

Figure 1 shows a General diagram of a corporate communication system, where:

5, 17, 19 - control tool;

6, 16, 18 - means of connection;

7 - switched channel;

8 - intermodular channel of sound streams;

12 - channel control means of connection;

13 - channel messages about events;

14 - channel of the Internet;

15 - authorization server;

20, 21, 22 - Internet telephony gateway;

23 - a telephone of a subscriber directly connected to a switched telephone network;

24-25 - the telephone of the subscriber connected to the switched telephone network through the connection tool;

26-37 - the telephone of the subscriber connected to the switched telephone network through a mini-telephone exchange;

38 - Internet telephone;

39 - computer;

40 - switched telephone network;

41 - packet transmission Internet;

42, 43, 44 - mini-automatic telephone exchanges;

45 - channel switched telephone network.

The dotted line indicates the channels of the Internet. The zigzag line indicates the channels of the switched telephone network.

Figure 2 presents a diagram of the means of connection and its connection with the management tool and the authorization server, where:

1 - switch;

2 - control unit;

3 - power supply;

4 - converter;

5 - management tool;

6 - means of connection;

7 - switched channel;

8 - intermodular channel of sound streams;

9 - switch control channel;

10 - channel monitoring events;

11 - intramodular channel of sound streams;

12 - channel control means of connection;

13 - channel messages about events;

14 - channel of the Internet;

15 - authorization server.

Thus, the described communication system differs from the known communication systems in that, determining the cost-effective route of a telephone call, depending on its type (local call, long-distance call, international call) and individual preferences of each user, sends a signal to one of the communication channels: either through the telephone network, or through one of the possible connections via the Internet, which can significantly reduce the cost of telephone negotiations and take into account the personal wishes of users. In addition, the system makes it possible to connect to any subscriber connected to the switched telephone network in the traditional way, to carry out communications within the office, to connect both one and many phones, depending on the need, as well as to ensure independence from one provider and uninterrupted operation communication, since each user can use several different methods of delivering a call over the Internet by using different gateways of various Internet providers t-telephony.

Claims (1)

A communication system including a switched telephone network and an Internet packet data network, at least one control device associated with the aforementioned Internet, and at least one connection device connected with a switched telephone network and with said means control, characterized in that the switched telephone network and the packet data network of the Internet are connected by means of Internet telephony gateways of various providers, and the said management tool I am able to determine the preferred route for the passage of telephone signs either through a switched telephone network, or through the Internet, or combinatorially through these networks, depending on the settings preferred by the user, and it is equipped with at least one authorization server connected to the Internet, which is configured to perform the functions of providing information about the availability and location of controls, available Internet telephony gateways and cost and making phone calls through them, authorizing connections and tracking phone calls through Internet telephony gateways, recording and logging registered phone calls, and each means of connection is connected directly to subscribers' phones and / or via telephone exchanges.

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