EP2371106A1 - Procede de notification et passerelle d'acces a un reseau de voix sur ip - Google Patents
Procede de notification et passerelle d'acces a un reseau de voix sur ipInfo
- Publication number
- EP2371106A1 EP2371106A1 EP09804049A EP09804049A EP2371106A1 EP 2371106 A1 EP2371106 A1 EP 2371106A1 EP 09804049 A EP09804049 A EP 09804049A EP 09804049 A EP09804049 A EP 09804049A EP 2371106 A1 EP2371106 A1 EP 2371106A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- terminal
- call
- gateway
- terminals
- network
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 230000007704 transition Effects 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000004590 computer program Methods 0.000 claims description 6
- 230000011664 signaling Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1053—IP private branch exchange [PBX] functionality entities or arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42365—Presence services providing information on the willingness to communicate or the ability to communicate in terms of media capability or network connectivity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2207/00—Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place
- H04M2207/20—Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place hybrid systems
- H04M2207/203—Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place hybrid systems composed of PSTN and data network, e.g. the Internet
Definitions
- the present invention relates to the general field of telecommunications.
- VoIP Internet Protocol
- terminals can be in particular analog terminals or DECT (Digital Enhanced Cordless Telephone), connected for example on a FXS port (Foreign eXchange Subscriber) of the gateway, or alternatively voice over IP terminals (for example a voice telephone on High Definition IP), connected to a USB (Universal Serial Bus) port.
- DECT Digital Enhanced Cordless Telephone
- FXS Forward eXchange Subscriber
- voice over IP terminals for example a voice telephone on High Definition IP
- USB Universal Serial Bus
- Other connection interfaces such as a Wireless FIdelity interface, can also be envisaged.
- the terminals thus connected behind the gateway are generally associated with the same telephone identifier or number on the VoIP network (for example, a SIP address).
- a single simultaneous telephone communication between an external terminal and a terminal of the plurality of terminals connected to the gateway can be established.
- an outgoing call can be initiated indifferently from any of the terminals connected to the gateway, and an incoming call can be made by any of the terminals connected to the gateway.
- Most terminals only have a local call log, stored in a device memory, which reflects the calls received and taken by that terminal through the gateway. It is therefore impossible, by consulting the local call log of such a terminal, to identify whether a call has been taken or initiated, for the same telephone identifier, by another terminal connected to the gateway.
- the present invention aims in particular to overcome this disadvantage and to allow the synchronization of local call logs of various terminals connected to different ports of a gateway to access a voice over IP network.
- the notification method comprises, on detection by the gateway of a passage in a connected or disconnected state of a call established between an external terminal and a terminal of this plurality of terminals, a step of transmission to at least one other terminal of this plurality of terminals of a message comprising information relating to the passage of the call in the connected or disconnected state.
- the invention also relates to an access gateway to a voice over IP network connected to a plurality of terminals associated with the same telephone identifier in this network, this gateway comprising: means for detecting a passage in a connected state or disconnected from a call established between an external terminal and a terminal of the plurality of terminals connected to the gateway; andmeans, activated on pass detection, for transmitting to at least one other terminal of this plurality of terminals, a message comprising information relating to the passage of the call in the connected or disconnected state.
- the information received from the gateway may include in particular at least one parameter indicating the state of the call (ie whether this call is in a connected or disconnected state) and a parameter indicating whether said call is an incoming or outgoing call.
- the invention makes it possible to keep the connected terminals behind an access gateway to a voice over IP network and corresponding to the same telephone identifier, calls made or taken by each of them.
- a message is sent by the gateway to all the terminals connected to this gateway (with the exception of however the terminal concerned by the call).
- all the terminals behind the gateway have the same information concerning the calls made or received via the gateway by each of them.
- the implementation of the invention is simple. It requires only a few modifications to the existing equipment (gateway and terminals), since it relies advantageously on the access gateway to the voice over IP network which, by its function, already has the contexts of the calls. which are issued or received through him.
- the gateway since the gateway is able to identify the terminal that has taken or sent the call, it can advantageously send a notification message only to the other terminals, so as to avoid duplicates at the terminal that has taken or sent the call. made the call.
- the gateway can also send a notification message to this terminal, so as to allow for example the verification of its call log, or the synchronization thereof in case of malfunction.
- the notification message being sent by the gateway of the detection of a passage in a connected or disconnected state of a call for one of the terminals (whether it is incoming or outgoing), the invention does not require additional memory resources at the gateway.
- the invention advantageously minimizes the exchange of messages between the gateway and the terminals. Indeed, a message is sent by the gateway to the terminals only on detection of a change of state of a call (transition to connected or disconnected state). Thus, the invention does not require periodic polling by the terminals of the gateway to be informed of calls received or issued by the other terminals.
- the invention being based on a unidirectional link between the gateway and the terminals, the resources of the gateway are preserved and the invention does not generate unnecessary traffic between the gateway and the terminals.
- the invention also provides a method for synchronizing a local call log of a first terminal connected to an access gateway to a voice over IP network, this synchronization method comprising: on detection by the gateway of a passage in a connected or disconnected state of a call established between an external terminal and a second terminal connected to this gateway and associated with the same telephone identifier in the network as the first terminal, a step transmitting by the gateway to the first terminal of a message comprising information relating to the passage of the call in a connected or disconnected state; and
- the invention also provides a system comprising an access gateway to a voice over IP network according to the invention, connected to a plurality of terminals associated with the same telephone identifier in the network, each terminal of this plurality of terminals. being adapted to update a local call log of this terminal using information received from the gateway relating to a transition to a connected or disconnected state of a call established between an external terminal and another terminal of the plurality of terminals.
- the different steps of the notification method are determined by computer program instructions.
- the invention also relates to a computer program on an information carrier, this program being capable of being implemented in a gateway for access to a voice over IP network or more generally in a computer, this program comprising instructions adapted to the implementation of the steps of a notification method as described above.
- This program can use any programming language, and be in the form of source code, object code, or intermediate code between source code and object code, such as in a partially compiled form, or in any other desirable form.
- the invention also relates to a computer-readable information medium, comprising instructions of a computer program as mentioned above.
- the information carrier may be any entity or device capable of storing the program.
- the medium may comprise storage means, such as a ROM, for example a CD ROM or a microelectronic circuit ROM, or a magnetic recording medium, for example a floppy disk or a disk. hard.
- the information medium may be a transmissible medium such as an electrical or optical signal, which may be conveyed via an electrical or optical cable, by radio or by other means.
- the program according to the invention can be downloaded in particular on an Internet type network.
- the information carrier may be an integrated circuit in which the program is incorporated, the circuit being adapted to execute or to be used in the execution of the method in question.
- the invention also relates to a signal according to the V23 protocol specified by the UU-T, comprising a message and adapted to be sent by an access gateway to a voice over IP network to a first terminal connected to said gateway.
- the message comprises at least one parameter representing a state of connection or disconnection of a call established between an external terminal and a second terminal connected to the gateway and associated with the same telephone identifier in the network. than the first terminal.
- the message further comprises a parameter indicating whether the call is an incoming or outgoing call.
- the invention thus relies advantageously on a communication interface already existing between the gateway and certain terminals, such as in particular analog terminals or DECT, namely the V23 signaling protocol.
- certain terminals such as in particular analog terminals or DECT
- V23 signaling protocol the person skilled in the art is invited to refer to the document entitled "600/1200 baud modem standardized for use in the switched telephone network", CCITT Recommendation V23 (1988).
- the invention aims at correlatively a terminal capable of being connected to an access gateway to a voice over IP network connected to a plurality of terminals associated with the same telephone identifier in said network, characterized in that it comprises means to receive a message from said gateway, said message comprising information relating to the passage of a call established between an external terminal and a terminal of said plurality of terminals, in a connected or disconnected state.
- said message is coded in V23 format as described above.
- FIG 1 represents, in its environment, a system and a gateway according to the invention, in a particular embodiment
- FIG. 2A represents, in a particular embodiment, the main steps of the transmission and synchronization methods according to the invention, when they are implemented by the system and the gateway shown in FIG. 1, for a call incoming from an external terminal and taken by a terminal T1 of the system according to the invention
- FIG. 2B represents, in a particular embodiment, the main steps of the transmission and synchronization methods according to the invention, when they are implemented by the system and the gateway represented in FIG. 1 for a call. outgoing issued by a terminal T1 of the system according to the invention to an external terminal.
- FIG. 2A represents, in a particular embodiment, the main steps of the transmission and synchronization methods according to the invention, when they are implemented by the system and the gateway shown in FIG. 1, for a call incoming from an external terminal and taken by a terminal T1 of the system according to the invention
- FIG. 2B represents, in a particular embodiment, the main steps of
- FIG. 1 represents, in its environment, a system 1 according to the invention, in a particular embodiment.
- the system 1 comprises a gateway GW access to an NW network offering a voice over IP service, according to the invention.
- the access gateway GW is equipped with a plurality of connection ports, Pl, P2,..., PN, on which it is possible to connect a plurality of terminals.
- a terminal T1 and a terminal T2 are respectively connected to the ports P1 and P2 of the gateway.
- the ports P1, P2,... PN of the gateway GW can be of different types. It can be for example FXS ports, USB, etc.
- a wireless interface such as for example a WIFI interface, particularly via a dongle connected to a USB port of the gateway.
- the terminals that can be connected to the gateway GW can also be of different types. It may be, for example, analogue or DECT type telephone terminals, high definition voice over IP telephone terminals, or PC (Personal Computer) type terminals. Of course, other terminals allowing a user to send or receive a call may be considered in the context of the invention.
- the terminals T1 and T2 are analogue or DECT type terminals, and the ports P1 and P2 of the gateway to which they are connected are FXS ports known per se.
- the signaling messages exchanged between the terminals T1 and T2 on the one hand and the gateway GW on the other hand are assumed here to comply with the V23 protocol specified by ITTU-T and known to those skilled in the art.
- Such a protocol allows the gateway in particular to send messages to terminals T1 and T2 while they are in on-hook mode, that is to say that they do not participate in any call.
- the access gateway GW is associated with a single telephone identifier ID, also commonly called the voice over IP number.
- identifier ID is for example an address
- the terminals connected to the gateway GW are thus, in the case envisaged here, associated with the same telephone identifier ID.
- a call intended for the telephone identifier ID is signaled by the gateway to the two terminals T1 and T2, and can be taken either by the terminal T1 or the terminal T2.
- the terminals T1 and T2 are associated with the same telephone identifier ID: a single simultaneous telephone communication between an external terminal (typically the terminal TExt) and one of the terminals T1 or T2 connected to the gateway can be established; and
- an outgoing call can be initiated indifferently from any of the terminals T1 or T2 connected to the gateway GW.
- the invention can however also adapt, without major difficulty for the skilled person, to a multi-line voice over IP service offered through the gateway and for which a plurality of telephone identifiers would be associated with the GW gateway. In this case, the invention applies independently to each "line" associated with a separate telephone identifier.
- the GW gateway here has the hardware architecture of a computer. It comprises in particular a processor 11, a random access memory 12, a read-only memory 13 and communication means 14 with the network NW.
- the gateway GW further comprises a call controller 15, adapted to manage the calls sent (respectively received) by the terminals connected to the gateway to (respectively from) an external terminal, such as for example the TExt telephone terminal, itself even connected to the NW network.
- an automaton equipping the GW gateway is known to those skilled in the art and will not be detailed further here.
- the read-only memory 13 of the gateway GW comprises a computer program adapted to perform the main steps of the notification method according to the invention, represented in FIGS. 2A and 2B described later.
- each terminal T1 and T2 has a screen (not shown in Figure 1) and a local call log (referenced respectively by 21 and 22 in Figure 1).
- a local call log is a database (or flat file) stored, preferably, in a non-volatile memory of the terminal, and listing a list of calls.
- Different fields are conventionally associated with a call in this database, such as, in particular, an identifier of the called or calling terminal, the date and time when the call was presented and possibly taken or established, the duration of the call. etc.
- the terminal TExt sends a call to the telephone identifier ID associated with the gateway GW (step ElO). This call is carried by the NW network to the gateway
- the gateway On receipt of this call, the gateway sends a call message M to the terminals T1 and T2 to signal the call (step E20).
- the message M conforms to the signaling protocol V23 and associated with a ring train.
- the terminals T1 and T2 ring. It is assumed here that a user picks up the terminal T1 to take the call.
- the connection between the terminal TExt and the terminal T1 is then established and a context relating to this call is created by the controller 15 of the gateway GW, according to known means and not further detailed here (step E30). This context is stored in the RAM 12 of the gateway GW.
- the call context thus created includes the parameters of the call and in particular an indication that the call between TExt and Tl is in a "connected" state. It further indicates that the call was made by the connected terminal on the port Pl.
- the terminal T2 stops ringing (i.e. the gateway GW stops transmitting the message M to the terminals T1 and T2).
- the local call log 22 of the terminal T2 is then updated with a new entry mentioning in particular that the call from TExt was not taken by the terminal T2 and indicating the time at which this call was received.
- the local call log 22 is enriched with the following entry E2:
- E2 "incoming TExt call, received at 12h: unanswered”.
- the local call log 21 of T1 is enriched with a new entry, mentioning in particular that the call from TExt was taken by the terminal T1 and indicating the time at which this call was made.
- the gateway GW Upon detection of the connected state of the call established between the terminal TExt and the terminal T1, the gateway GW transmits a notification message Ml to the terminal T2 to signal the transition to the connected state of the call (step E40 ).
- the gateway GW identifies the terminals to which to transmit the message Ml by consulting the call context created during the step E30. More specifically, it identifies, using this context, the ports to which to send the message Ml (namely here all the terminals connected to the gateway except the Tl terminal that took the call). The nature of the ports thus identified allows it to select the signaling protocol to be used to send this message to the terminals concerned. This message is carried in a signal according to the invention.
- the gateway GW determines that the message M1 must be sent, in accordance with the protocol V23, to the terminal T2 connected to the port P2.
- the message M1 takes for example the form of a notification message as proposed in the protocol V23, sent in a so-called "on-hook" transmission mode and not associated with a ring train.
- the message Ml also comprises the following parameters: -date and time of the call (parameter coded by the hexadecimal value 01H);
- the state parameter of the call takes the value "connected" and the type parameter of the call takes the value "incoming".
- V23 protocol in its current form does not make it possible to include in a notification message the parameters
- V23 For example, such a coding could associate with the parameter "state of the call” the hexadecimal value 3DH and the parameter "type of call” the hexadecimal value 3EH. Of course, another coding could be considered.
- the terminal T2 Upon receipt of the message Ml, the terminal T2 updates its local call log 22, with the information contained in this message M1 (step E50). In particular, it updates the entry E2 of the log 22 corresponding to the call received from the terminal TExt indicating that the call is in a connected state.
- the entry E2 of the journal 22 becomes for example:
- step E2 "TExt incoming call, received at 12h: connected". It is now assumed that the user of the terminal Tl hangs up his terminal and ends the call with the terminal TExt (step E60). On detection of this hang-up on the port P1, the context of the call is updated by the call controller 15 of the gateway GW, so as to indicate that the call is now in a disconnected state on the port Pl. On detection of the transition to the disconnected state of the call, the gateway GW also transmits to the terminal T2, connected to the port P2, an M2 notification message to signal the transition to the disconnected state of the call (step E70).
- the gateway GW identifies the terminals to which to transmit the message M2 by consulting the call context. Specifically, it identifies with this context, the ports to which to send the message M2 (namely here all terminals connected to the gateway except the Tl terminal). The nature of the ports thus identified allows it to select the signaling protocol to be used to send this message to the terminals concerned. This message is carried in a signal according to the invention.
- the gateway GW determines that the message M2 must be sent in accordance with the protocol V23 to the terminal T2 connected to the port P2.
- the message M2 takes for example the form of a notification message as proposed previously for the message M1 and in which the call state and call type parameters have the respective values " disconnected "and" incoming ".
- the terminal T2 updates its local call log 22, with the information contained in this message M2 (step E80). In particular, it updates the entry E2 of the log 22 corresponding to the call received from the terminal TExt indicating that the call is in a disconnected state.
- the entry E2 of the journal 22 thus becomes, for example:
- E2 "TExt incoming call, received at 12h: disconnected”.
- the terminal T2 evaluates the duration of the received call and completes the entry E2 with this duration.
- this duration can be evaluated by the call controller 15 of the gateway GW using the information contained in the context of the call, and transmitted in the message M2 to the terminal T2, in a parameter whose coding has previously been appropriately declared to ITTU.
- This call is transmitted by the gateway GW and via the network NW to the terminal TExt, according to means known to those skilled in the art (step F20).
- the connection between the terminal TExt and the terminal T1 is thus established and a context relating to this call is created by the controller 15 of the gateway GW (step F30).
- the call context thus created includes the parameters of the call and in particular an indication that the call between TExt and Tl is in a "connected" state. It also indicates that the call was sent by the connected terminal on the port Pl.
- the local call log 21 of T1 is enriched with a new entry, mentioning in particular that the call sent to TExt is in a connected state and indicating the time at which this call was taken.
- the local call log 21 is enriched with the following entry El ':
- the gateway GW identifies the terminals to which the message M3 is sent, by consulting the call context established during the step F30.
- the gateway GW determines that the message M3 must be sent in accordance with the protocol V23 to the terminal T2 connected to the port P2.
- This message M3 is similar to the message Ml described above, in which the call state and call type parameters take the values "connected" and "outgoing", respectively.
- the terminal T2 On receipt of the message M3, the terminal T2 updates its local call log 22, with the information contained in this message (step F50). In particular, it enriches its call log 22 with a new entry E2 'corresponding to the call sent by the terminal T1.
- the entry E2 'of the journal 22 is for example:
- E2 ' "outgoing call to TExt, sent at 12h: connected". It is now assumed that the user of the terminal T1 hangs up his terminal and terminates the call with the TExt terminal (step F60). On detection of the hang-up of the terminal T1, the context of the call is updated by the call controller 15 of the gateway GW, so as to indicate that the call is now in a disconnected state on the port Pl.
- the gateway GW On detection of the transition to the disconnected state of the call, the gateway GW also transmits to the terminal T2 connected to the port P2, a notification message M4 to signal the transition to the disconnected state of the call (step F70 ).
- the message M4 is similar to the previously described message M2 in which the state parameters of the call and of the type of the call take the values "disconnected" and "outgoing", respectively.
- the terminal T2 On receipt of the message M4, the terminal T2 updates its local call log 22, with the information contained in this message (step F80). In particular, it updates the entry E2 'of the log 22 corresponding to the call sent to the TExt terminal, indicating that the call is now in a disconnected state.
- the terminal T2 evaluates the duration of the received call and completes the entry E2 'with this duration.
- this duration can be evaluated by the call controller 15 of the gateway GW and transmitted in the message M4.
- the API application of the terminal T2 reads the information relating to the input E2 'in the call log 22 in order to display them on the screen of the terminal T2.
- the following information appears on the screen of the terminal 22: "outgoing call to TExt, transmitted at 12 o'clock, duration 2 min".
- the local call log 21 of the terminal T1 is updated, following the hook-up of the terminal T1 (step F80 "), and the application API of the terminal T1 reads the information relating to the input El ' in the call log 21 to display them on the screen of the terminal Tl. Thus, it appears on the screen of the terminal 21 the following information:
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0859121 | 2008-12-30 | ||
PCT/FR2009/052561 WO2010076497A1 (fr) | 2008-12-30 | 2009-12-16 | Procede de notification et passerelle d'acces a un reseau de voix sur ip |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2371106A1 true EP2371106A1 (fr) | 2011-10-05 |
Family
ID=40848253
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09804049A Withdrawn EP2371106A1 (fr) | 2008-12-30 | 2009-12-16 | Procede de notification et passerelle d'acces a un reseau de voix sur ip |
Country Status (3)
Country | Link |
---|---|
US (1) | US20110261810A1 (fr) |
EP (1) | EP2371106A1 (fr) |
WO (1) | WO2010076497A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3000337A1 (fr) * | 2012-12-24 | 2014-06-27 | France Telecom | Procede de gestion des renvois d'appel dans un systeme de communication comprenant des terminaux associes a un identifiant commun |
CN104580169A (zh) * | 2014-12-23 | 2015-04-29 | 惠州Tcl移动通信有限公司 | 一种进行文件同步的方法及系统 |
FR3081643A1 (fr) * | 2018-06-12 | 2019-11-29 | Orange | Passerelle et procede de gestion d'un service telephonique voip |
CN115017920A (zh) | 2018-10-15 | 2022-09-06 | 华为技术有限公司 | 一种翻译方法及电子设备 |
US11606460B2 (en) * | 2021-04-07 | 2023-03-14 | High Sec Labs Ltd. | Mutual disabling unit for multiple phones |
CN116264598A (zh) * | 2021-12-14 | 2023-06-16 | 荣耀终端有限公司 | 一种多屏协同的通话方法、系统、终端及存储介质 |
Citations (4)
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US20050018653A1 (en) * | 2003-07-22 | 2005-01-27 | Qwest Communications International Inc (Patent Prosecution) | Personal communication service network interface device |
US20060140173A1 (en) * | 2004-12-24 | 2006-06-29 | Christopher Hoover | Sustained VOIP call logs using PoC contact lists |
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EP2191631A1 (fr) * | 2007-09-12 | 2010-06-02 | Nokia Corporation | Journal des appels centralisé pour informations de protocole d'appel synchronisé |
Family Cites Families (3)
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US7065203B1 (en) * | 2001-05-07 | 2006-06-20 | Cisco Technology, Inc. | Method and system for managing call requests in a limited bandwidth environment |
JP2004336619A (ja) * | 2003-05-12 | 2004-11-25 | Sony Corp | 機器間認証システム及び機器間認証方法、通信機器、並びにコンピュータ・プログラム |
KR100694206B1 (ko) * | 2005-02-28 | 2007-03-14 | 삼성전자주식회사 | 사설망에서의 sip 서비스 제공 장치 및 그 방법 |
-
2009
- 2009-12-16 WO PCT/FR2009/052561 patent/WO2010076497A1/fr active Application Filing
- 2009-12-16 EP EP09804049A patent/EP2371106A1/fr not_active Withdrawn
- 2009-12-16 US US13/141,815 patent/US20110261810A1/en not_active Abandoned
Patent Citations (4)
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US20050018653A1 (en) * | 2003-07-22 | 2005-01-27 | Qwest Communications International Inc (Patent Prosecution) | Personal communication service network interface device |
US20060140173A1 (en) * | 2004-12-24 | 2006-06-29 | Christopher Hoover | Sustained VOIP call logs using PoC contact lists |
US20060187900A1 (en) * | 2005-02-22 | 2006-08-24 | Akbar Imran M | Method and system for providing private virtual secure Voice over Internet Protocol communications |
EP2191631A1 (fr) * | 2007-09-12 | 2010-06-02 | Nokia Corporation | Journal des appels centralisé pour informations de protocole d'appel synchronisé |
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Title |
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ANONYMOUS: "suite - Définitions, synonymes, conjugaison, exemples | Dico en ligne Le Robert", 8 November 2021 (2021-11-08), XP055858865, Retrieved from the Internet <URL:https://dictionnaire.lerobert.com/definition/suite> [retrieved on 20211108] * |
ANONYMOUS: "sur - Définitions, synonymes, conjugaison, exemples | Dico en ligne Le Robert", 8 November 2021 (2021-11-08), XP055858863, Retrieved from the Internet <URL:https://dictionnaire.lerobert.com/definition/sur> [retrieved on 20211108] * |
See also references of WO2010076497A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2010076497A1 (fr) | 2010-07-08 |
US20110261810A1 (en) | 2011-10-27 |
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