WO1998021900A1 - Procede et dispositif de transfert d'appel dans un reseau intelligent - Google Patents

Procede et dispositif de transfert d'appel dans un reseau intelligent Download PDF

Info

Publication number
WO1998021900A1
WO1998021900A1 PCT/FI1997/000674 FI9700674W WO9821900A1 WO 1998021900 A1 WO1998021900 A1 WO 1998021900A1 FI 9700674 W FI9700674 W FI 9700674W WO 9821900 A1 WO9821900 A1 WO 9821900A1
Authority
WO
WIPO (PCT)
Prior art keywords
call
intelligent network
switch means
telephone
network switch
Prior art date
Application number
PCT/FI1997/000674
Other languages
English (en)
Inventor
Vesa-Pekka Nikula
Niko LINDSTRÖM
Kalevi Ahola
Original Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefonaktiebolaget Lm Ericsson (Publ) filed Critical Telefonaktiebolaget Lm Ericsson (Publ)
Priority to AU48702/97A priority Critical patent/AU4870297A/en
Publication of WO1998021900A1 publication Critical patent/WO1998021900A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0029—Provisions for intelligent networking
    • 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
    • H04M3/54—Arrangements for diverting calls for one subscriber to another predetermined subscriber
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres

Definitions

  • the present invention relates to methods for call forwarding.
  • the invention relates further to an arrangement for performing call forwarding operations.
  • the call forward feature is activated by setting the telephone terminal in an off-hook state, subsequently pressing an appropriate call forward button or key, entering the desired number to which the call is to be forwarded and finally setting the terminal in an on-hook state.
  • PBXs Primary Branch Exchanges
  • the transfer of calls from one terminal to another is realized by arranging an IN (Intelligent Network) switch in the network to recognize a transfer request, initiate the call to the desired terminal and then to bridge the incoming call to said terminal while dropping the call to the original terminal.
  • IN Intelligent Network
  • the user of this feature might even be on a cellular (ie. mobile) telephone and like to forward the call to a telephone terminal connected to a fixed telephone line.
  • the transfer is initiated when the user hits an appropriate key and dials a predetermined feature access code.
  • the user is then prompted to enter the number of the desired terminal to which the call should be forwarded. If said terminal is busy or out of service, the call forwarding will fail and the call on hold is returned back to the user of the feature.
  • the above arrangement has some disadvantages, for instance in cases where a subscriber has two telephones which are connected to different networks, eg. one on a fixed line network and another in a cellular network, wherein the terminal used on the fixed line is an extension behind a certain PBX, such as a PBX for a private office and the terminal on the cellular network is an analog or a digital mobile telephone, such as a GSM, NMT or AMPS etc. telephone.
  • the call is routed to the PBX wherefrom it is further routed either to said extension or, in case the call forward is activated, to a number programmed in the PBX, eg. to a mobile telephone or to a fixed telephone which an extension of another PBX.
  • This kind of operation requires a lot of line resources due to the fact that the call has to be transmitted from a local exchange to the PBX and back to the local exchange to be transmitted to the predetermined call forward number.
  • the capacity of the PBX may also run out, or the functions thereof may remarkably slow down due to the extreme load caused by the various call forward operations.
  • An object of the present invention is also to provide a method and arrangement in which an IN (Intelligent Network) switch and/or services is used for call forwarding.
  • IN Intelligent Network
  • a further object of the present invention is to provide a method and an arrangement, by means of which the user of a telephone terminal may readily change the call forward data stored in an IN switch concerning that terminal.
  • a further object of the invention is to provide a method and an arrangement for controlling the call forwarding operations between various operators.
  • the objects are obtained by a method for making a telephone call from a calling terminal to a called terminal, wherein said call to the called terminal is forwarded to another destination in a telephone system.
  • Said system includes terminals connected to the network including exchanges, switches and operational connections therebetween, said terminals being a part of a fixed network and/or a mobile network.
  • Said system is further including intelligent network means for controlling and directing the calls to another destinations as dialled by the calling terminal.
  • Said system is further including a plurality of network operators for allowing the terminals to have an access to the services of said networks.
  • the inventive method comprises the steps of: changing the called terminal destination to be another destination and transferring the information of said another destination to said intelligent network means connected to the network by means of a call forwarding message, transmitting the telephone call from the calling terminal through at least one exchange of the destination network designated by an identification part of the called terminal destination number, directing said called incoming call to the intelligent network means by means of said at least one exchange in the route from the calling terminal to the called destination which is informed of said identification part indicating that the call is to be directed to the intelligent network means, changing said destination information of the called destination terminal to correspond said another destination designated by the intelligent network means, said another destination corresponding said information transferred to the intelligent network means by means of said call forwarding message, and transmitting the call to a destination indicated by said intelligent network means through a route arranged by at least one network operator controlling at least one of the networks.
  • the invention provides a method for making a telephone call from a A number to a B number, said B number being an extension of a PBX operationally connected to a PSTN through a PSTN exchange.
  • Said method comprising the steps of transmitting said telephone call to said B number through an intelligent network switch means, said intelligent network switch means being operationally connected to said PSTN exchange, controlling the transmitting of said call from said intelligent network switch means to an extension number by said intelligent network switch means, said extension number being either said B number or any other telephone number provided in the intelligent network switch means by a call forwarding message, whereby the call will be connected to said PBX only in case said number provided by the intelligent switch means is said B number.
  • the arrangement in telecommunication systems comprises PBX means having a plurality of extensions operationally connected therein, each of the extensions having a B number, a PSTN exchange and intelligent network switch means operationally connected to the PSTN exchange.
  • the arrangement is such that the incoming calls from a A number to the PBX means are transmitted from the PSTN exchange to the intelligent network switch means.
  • the intelligent network switch means further comprise means for controlling a forwarding of the incoming call from said intelligent network switch means to a desired extension number set by a call forward message, said extension number being either said B number or any other telephone number provided in the intelligent network switch means by said call forwarding message, whereby the call will be connected to said PBX only in case said number provided by the intelligent switch means is said B number.
  • the solution provides a simple, reliable and controllable manner for call forwarding.
  • the solution decreases traffic in exchanges and/or switches and thus reduces the requirements for the number and/or capacity thereof and the amount of trunks.
  • the trunk lines are free to transmit only such calls where at least one terminal involved to that call is an extension of the PBX.
  • the costs for call forwarding are reduced due to decreased amount of apparatus and less maintenance, and especially due to a possibility of avoiding unnecessary transmissions between various operators and/or switches.
  • the telecommunication traffic in and out from a company can be controlled and operated by one single operator running the PSTN network.
  • Figure 2 is a schematic presentation of an arrangement according to one embodiment of the present invention.
  • Figure 3 discloses schematically another embodiment of the present invention
  • Figure 4 discloses an arrangement for controlling different operators in accordance with the present invention.
  • Figures 5 and 6 are schematic presentations of a further alternative embodiment.
  • FIG la is a schematical presentation of a prior art solution.
  • a call intented to reach an extension terminal 5 (...3171) of PBX 4 (01055...) is initiated by a subscriber A.
  • the call is directed through a local exchange of a PSTN (Public Switched Telephone Network) and through a trunk line 3 to the PBX 4, which might be a switch of a private company or similar.
  • PSTN Public Switched Telephone Network
  • the user (B) of said extension has forwarded the call to a telephone terminal which is a subscriber of another network (not shown, but connected to the PSTN) by giving instructions to the PBX 4.
  • the PBX transmits the call back through the trunk lines 3 to the local exchange 2 of the PSTN which in turn transmits the call through an appropriate route to said another network, which might even be run by another operator.
  • the call from the A number is first transmitted to the PBX and subsequently transmitted back from there, and might even be transmitted further to a different network, which all requires additional capacity from the trunk lines 3, the PBX 4 and the exchange 2 so as to be able to perform the call forwarding.
  • Figure lb discloses another prior art solution according to which the PBX 4 is provided with trunks to various mobile phone networks 6. A possibility for an international call to a telephone in a foreign network is also shown. There might be an additional exchange 7 between the PBX and the mobile network 6. A main exchange 1 of the PSTN network is connected to a local exchange 2 through an IN switch 8 which is arranged to control the transfers between various local exchanges and the operation thereof. As can be seen from Fig. lb, in case a call initiated by subscriber A is forwarded to a mobile terminal in network 6, it needs to be routed through several exchanges and switches and even from one network to another, which requires a lot of capacity and causes additional costs for the subscriber of the PBX.
  • PBX 4 may, for example, be a switch of a company and have a plurality of extensions 5, a terminal provided with number 010553171 in the example being one of the extensions, ie. the B number.
  • the terminals can, of course, be of wireless or cordless type.
  • An IN switch 10 is operationally connected to a local PSTN exchange 2. All incoming calls to the extensions of PBX 4 are transmitted to said IN switch means 10, as is indicated by an arrow from local exchange to the IN.
  • the phone numbers of the PBX (01055%) are stored in and controlled by the IN means 10.
  • IN means 10 controls the incoming calls directed to that given PBX.
  • the IN switch means 10 comprises a table 12 of extension numbers B under the IN number of the company.
  • the table comprises a section B for actual B numbers and section Cl for the activated numbers ie. for the numbers set by the subscriber B to be used in case of an incoming call. It is possible to arrange the setting of an appropriate number such that it can be performed by any telephone, for instance by using special codes for each subscriber B.
  • Said table 12 may contain further sections, eg. C2, which will be activated in case Cl will not answer after a preset time, such as 20 seconds.
  • the subscriber A initiates a call by calling to a PBX related B number, for instance to 010553171.
  • This number includes an identification part 010, which notifies the exchange that the call is to be directed to the IN.
  • Said IN switch means controls the transmission of the call such that in case the set number in section Cl equals with B, the call will be forwarded to the PBX 4 through the dashed line and further to the terminal 5 at the office.
  • the Cl number is different, eg. a mobile telephone number (05012345 in the example)
  • the call will be forwarded to that number directly from the IN switch means 10 without any signals or transmissions to the PBX 4.
  • the trunk line 3 designated by a dashed line is only for calls from the extensions 5 of the PBX, and in some instances it may even be unnecessary.
  • Fig 3 is a schematic presentation of one further embodiment according to the present invention.
  • the IN switch means 10 is provided in connection with a main exchange 1 of the PSTN.
  • the calls initiated by the A subscriber are routed through the main exchange 1 to the IN means 10, from which they are routed to an appropriate terminal through an appropriate route.
  • the selection of a proper telephone number in the IN means 10 is similar to that disclosed in Figure 2, ie. the call forwarding operations are moved from the PBX to the IN switch means 10.
  • the call will be forwarded to eg. a mobile phone from the IN means 10 provided between the main exchange 1 and the local exchange 2, which in most cases means that they are transmitted from the main exchange 1 of the network.
  • the subscriber changes the data concerning the terminals or network to which his or hers calls should be forwarded by making a phone call to the IN switch means 10 and giving a predetermined code by the telephone, either by the telephone on the extension or by other telephone, such as his or hers mobile phone, to the IN switch means 10.
  • the IN switch means 10 controls even the calls made by the subscriber of the B number. In case the subscriber calls from another telephone terminal as in the previous time, the IN switch means 10 will automatically change the data, ie. the Cl section of the table 12, to correspond that specific terminal.
  • Figure 4 discloses an arrangement by means of which the owner of the PBX 4 is enabled to control the overall handling of the calls handled by various operators 6.
  • the PBX includes a large amount of outgoing lines which are connected directly to the networks of a plurality of operators (three in the example).
  • the owner of the PBX has determined how to choose a most suitable operator, for instance based on charging rates or other reasons. However, it is reasonable for each operator to have a right to route the call coming to the PBX in accordance with the present resources of the network. As a call forwarding has this far occurred in the PBX, the operator did not have any change to control how the call is routed as it was solely a decision made by the PBX, eg. on grounds of economical reasons.
  • an IN 10 to at least one network of at least one operator in accordance with the principles of the invention it is possible to provide a control means for call forwarding operations such that an operator is enabled to control the traffic in the network and to distribute the traffic in an appropriate manner. There may, for instance, occur situations where it is wise to direct the calls to a network of another operators, eg. due to a risk of overload. This kind of arrangement enables the operator to decide of how the network is used despite the direct connections from a large PBX.
  • Figures 5 and 6 disclose situations in which the call is forwarded from a "home telephone" ie. from a telephone which is not an extension of a PBX.
  • the caller (A-subscriber) calls to a telephone terminal 5 controlled by call forwarding.
  • the call comes in to the home exchange 2 of the called person.
  • the exchange has marked the line to the destination by a mark which affects the call to be directed to the IN or by activating absent subscriber service (ASU) or a subscriber class which is the ASU which is a service which can be ordered to the home exchange.
  • ASU absent subscriber service
  • ASU subscriber class which is the ASU which is a service which can be ordered to the home exchange.
  • the IN will thus be contacted.
  • the IN service will inform the caller of this extra charge and asks for a confirmation whether the caller is ready to pay this or not. If the caller confirms the extra charge, the call will be transferred to the destination given to the IN service by the B-subscriber. By means of this the B-subscriber avoids from extra charges caused by call forwarding, which charges could otherwise be remarkable. However, if the line is busy or the destination will not answer, no charges will be billed.
  • the IN 10 may be in implemented within the exchange or only a part of the functions thereof are implemented within the exchange.
  • the A subscriber calls to number 2995867.
  • the B subscriber has informed the IN through the home exchange of the new destination C, which is to be accepted or denied by the caller A.
  • the call will then be routed in accordance with the intelligent control of the home exchange to the other networks 6, such as mobile networks, foreign networks or other networks.
  • the call is forwarded to a destination which is operated by the same operator and in the same network, it might not be necessary to add any extra charges and thus to present any requests for the confirmation.
  • the invention can also be utilized in connection with mobile telephones.
  • the mobile telephone roames to the foreign network and the HLR (Home Location Register) in the home country is updated accordingly.
  • the calls will be forwarded to the network of that foreign operator.
  • the HLR is connected to the IN and the incoming call will be transferred to the IN, which then asks whether the caller will pay for the transfer or not. If the answer is yes, the call will be forwarded in a known manner to the foreign destination from the IN and the caller A will be charged accordingly.
  • the invention provides an apparatus and a method by which a significant improvement can be achieved in the area of call forwarding. Benefits are especially obtained in field of forwarding calls directed to an extension of a PBX and in field of charging the actual caller.
  • the use of the arrangement according to the present invention will provide remarkable savings for the subscribers having a PBX with several extensions due to the fact that those calls, in which the receiving person is not present at the fixed line terminal B and who has thus set a call forwarding feature on, will never enter to the switch ie. the PBX of the company or similar. Savings can be expected especially in occasions where the same operator runs both the fixed and the mobile telephone network.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un dispositif permettant de transférer un appel téléphonique depuis un terminal appelant vers un terminal appelé, ledit appel destiné au terminal appelé étant transféré vers une autre destination dans un système téléphonique. La destination du terminal appelé est modifiée de façon à devenir une autre destination, et les informations de ladite autre destination sont transférées dans un dispositif réseau intelligent relié au réseau par un message de transfert d'appel. L'opération de transfert d'appel est commandée par le dispositif réseau intelligent.
PCT/FI1997/000674 1996-11-08 1997-11-06 Procede et dispositif de transfert d'appel dans un reseau intelligent WO1998021900A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU48702/97A AU4870297A (en) 1996-11-08 1997-11-06 Method and arrangement for call forwarding in intelligent network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI964510 1996-11-08
FI964510A FI104778B (fi) 1996-11-08 1996-11-08 Menetelmä ja järjestely puhelun tekemiseksi

Publications (1)

Publication Number Publication Date
WO1998021900A1 true WO1998021900A1 (fr) 1998-05-22

Family

ID=8547038

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1997/000674 WO1998021900A1 (fr) 1996-11-08 1997-11-06 Procede et dispositif de transfert d'appel dans un reseau intelligent

Country Status (3)

Country Link
AU (1) AU4870297A (fr)
FI (1) FI104778B (fr)
WO (1) WO1998021900A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19843187A1 (de) * 1998-09-14 1999-08-05 Mannesmann Ag Aktive Rufannahme bei Teilnehmern mit mehreren Telefonnummern
DE19843201A1 (de) * 1998-09-14 1999-08-12 Mannesmann Ag Lasthitfirst
WO2000045578A1 (fr) * 1999-01-18 2000-08-03 Nokia Networks Oy Mise en oeuvre du renvoi temporaire dans un reseau de telecommunications
EP1026903A1 (fr) * 1999-02-05 2000-08-09 Helsingin Puhelin OYJ - Helsingfors Telefon ABP Signalisation dans un réseau de télécommunications
WO2003034701A1 (fr) * 2001-10-09 2003-04-24 Siemens Aktiengesellschaft Procede pour activer un renvoi d'appel avec demande d'assentiment
US6608890B1 (en) 1998-06-15 2003-08-19 Siemens Aktiengesellschaft System and method for remote updating of a telephone number transformation definition
CN100411396C (zh) * 2002-10-10 2008-08-13 中国电信集团广东省电信公司 用一个电信运营商的电信网为其它电信运营商的电信网的电信用户提供呼叫转移的方法
CN100456788C (zh) * 2003-08-30 2009-01-28 华为技术有限公司 一种为他网话机用户远程电话开户的实现方法
EP2046008A1 (fr) * 2007-01-23 2009-04-08 Huawei Technologies Co., Ltd. Procédé, système, commutateur et point de commande de service pour mettre en oeuvre un renvoi d'appel
CN111356098A (zh) * 2016-12-30 2020-06-30 深圳市中兴微电子技术有限公司 一种呼叫控制方法、服务器、车载终端及移动终端

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0498593A2 (fr) * 1991-02-08 1992-08-12 AT&T Corp. Système de détournement d'appel
EP0683589A2 (fr) * 1994-05-11 1995-11-22 Siemens Aktiengesellschaft Méthode et appareil pour dévier une connection téléphonique
US5506887A (en) * 1992-03-05 1996-04-09 Bell Atlantic Network Services, Inc. Personal communications service using wireline/wireless integration
EP0740480A2 (fr) * 1995-04-24 1996-10-30 AT&T Corp. Transfer d'appel dans des réseaux intelligents

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0498593A2 (fr) * 1991-02-08 1992-08-12 AT&T Corp. Système de détournement d'appel
US5506887A (en) * 1992-03-05 1996-04-09 Bell Atlantic Network Services, Inc. Personal communications service using wireline/wireless integration
EP0683589A2 (fr) * 1994-05-11 1995-11-22 Siemens Aktiengesellschaft Méthode et appareil pour dévier une connection téléphonique
EP0740480A2 (fr) * 1995-04-24 1996-10-30 AT&T Corp. Transfer d'appel dans des réseaux intelligents

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6608890B1 (en) 1998-06-15 2003-08-19 Siemens Aktiengesellschaft System and method for remote updating of a telephone number transformation definition
DE19843187A1 (de) * 1998-09-14 1999-08-05 Mannesmann Ag Aktive Rufannahme bei Teilnehmern mit mehreren Telefonnummern
DE19843201A1 (de) * 1998-09-14 1999-08-12 Mannesmann Ag Lasthitfirst
WO2000045578A1 (fr) * 1999-01-18 2000-08-03 Nokia Networks Oy Mise en oeuvre du renvoi temporaire dans un reseau de telecommunications
US6728543B2 (en) 1999-01-18 2004-04-27 Nokia Corporation Implementation of call forwarding in a telecommunications network
EP1026903A1 (fr) * 1999-02-05 2000-08-09 Helsingin Puhelin OYJ - Helsingfors Telefon ABP Signalisation dans un réseau de télécommunications
WO2003034701A1 (fr) * 2001-10-09 2003-04-24 Siemens Aktiengesellschaft Procede pour activer un renvoi d'appel avec demande d'assentiment
CN100411396C (zh) * 2002-10-10 2008-08-13 中国电信集团广东省电信公司 用一个电信运营商的电信网为其它电信运营商的电信网的电信用户提供呼叫转移的方法
CN100456788C (zh) * 2003-08-30 2009-01-28 华为技术有限公司 一种为他网话机用户远程电话开户的实现方法
EP2046008A1 (fr) * 2007-01-23 2009-04-08 Huawei Technologies Co., Ltd. Procédé, système, commutateur et point de commande de service pour mettre en oeuvre un renvoi d'appel
EP2046008A4 (fr) * 2007-01-23 2010-06-09 Huawei Tech Co Ltd Procédé, système, commutateur et point de commande de service pour mettre en oeuvre un renvoi d'appel
CN111356098A (zh) * 2016-12-30 2020-06-30 深圳市中兴微电子技术有限公司 一种呼叫控制方法、服务器、车载终端及移动终端

Also Published As

Publication number Publication date
FI104778B (fi) 2000-03-31
FI964510A0 (fi) 1996-11-08
AU4870297A (en) 1998-06-03
FI964510A (fi) 1998-05-09

Similar Documents

Publication Publication Date Title
EP0715792B1 (fr) Procede pour etablir une connexion
US5566235A (en) Customer controlled service mediation management
US5530741A (en) Method for providing inter-lata caller identification
US5953657A (en) Method and arrangement for call setup in telecommunications networks using signaling aided redialing
JP3734498B2 (ja) 遠隔通信フォローミーサービス
US5539807A (en) System and method for directing call charges to third parties
US5978450A (en) Personal dial tone
US5509062A (en) Intelligent terminal based selective call forwarding
US5729598A (en) Telephone network with telecommuting features
CA2103233C (fr) Reacheminement d'appels telephoniques apres une reponse
US7555109B2 (en) System and method for caller control of a distinctive ring
US5903639A (en) Custom routing for multiple carrier interconnection
US6574324B1 (en) System and method for long distance automatic call-back
JPH08500956A (ja) 電話呼を完成させるのに用いる方法
EP0921672A2 (fr) Méthode et appareil assurant une commande par l'abonné appelant
RU94020726A (ru) Коммуникационная сеть, способ установления телефонной связи, телефонный аппарат абонента и способ регистрации подвижного радиотелефонного аппарата
US7130628B2 (en) Integrated wireless/wireline registration
US6671366B1 (en) Method of connecting calls
WO1998021900A1 (fr) Procede et dispositif de transfert d'appel dans un reseau intelligent
JPH11284735A (ja) 発呼者制御サービスを提供する電気通信システム
US6173051B1 (en) Custom routing for multiple carrier interconnection
AU9610298A (en) Procedure for obtaining instructions regarding a destination subscriber
AU3508199A (en) Method, server and communication node for the establishment of fee-optimised communication connections
US6628773B1 (en) Process for providing the subscriber number of the calling subscriber, service unit, and private communication network
EP0792559B1 (fr) Systeme et processus de traitement de signaux de trafic de donnees transportant des informations

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW AM AZ BY KG KZ MD RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH KE LS MW SD SZ UG ZW AT BE CH DE DK ES FI FR GB GR IE IT LU MC

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA