Abstract:
Conference participants are selected via a network element in a network, the geographical area locations, for example, buildings of an enterprise, of the conference participants are determined and depending on the determined locations a geographical conference area, for example a conference room is determined for each conference participant. The conference area together with the conference information is communicated to the conference participants. The availability of the conference participants can be checked for the communication.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is the US National Stage of International Application No. PCT/EP2006/063599, filed Jun. 27, 2006 and claims the benefit thereof. The International Application claims the benefits of German application No. 10 2005 030 597.0 DE filed Jun. 30, 2005, both of the applications are incorporated by reference herein in their entirety. 
     FIELD OF INVENTION 
     The present invention relates to a method and conference server for initialization of scheduled conferences. 
     BACKGROUND OF INVENTION 
     The conference service feature is available in communication networks in addition to the usual service features such as call diversion or call answering. When a conference is convened, the individual conference participants are notified, by e-mail or by telephone for example, about the location of the conference or the conference area, the type of conference and the time. Enabling this type of information to be notified to the respective conference participants mostly requires comprehensive research into the current location of the respective conference participants and about the network and conference resources to be used. 
     If, in accordance with these notifications, five conference participants take part in a conference at three different locations or conference areas for example, the conference is mostly set up from one of the three locations, usually the location at which the conference participant initiating the conference is present, at the agreed time—for example a telephone conference or audiovisual conference. To this end the connections are established or switched through in the communication network—for example the telephone network—to the terminals or telephones at the further conference areas or locations at which the further conference participants are located or have been invited with the aid of conference equipment. 
     WO 2004/114662 A1 describes a conference system for setting up conference connections in which a person does not require any knowledge of the required systems if they wish to have a conference with a specific person. The person selects a person for the conference and the appropriate systems and the conference locations are selected with the aid of the conference system. The selection is made by using a priority list containing prioritized conference locations provided for each conference participant in addition to other resource availabilities, system options and location of the person etc. 
     SUMMARY OF INVENTION 
     The underlying object of the invention consists of improving the convening of scheduled conferences, especially audio and audiovisual conferences. The object is achieved by the features the independent claims. 
     The essential aspect of the inventive method is to be seen in the selection of the conference participants and in the geographical location of the conference participants being determined with the aid of at least one communication network. Furthermore, depending on the location areas determined, the geographical conference areas for the respective conference participants are determined and these are communicated in addition to conference information. 
     The convening of conferences is made significantly easier with the aid of the inventive method since the location of the conference participant as well as the conference areas are determined automatically with the aid of elements in the network and the conference participants are then informed. This means a significant time saving in the convening of conferences and thereby a reduction in the outlay. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Further advantageous embodiments of the invention are to be taken from the further claims and are explained in a following exemplary embodiment, with the exemplary embodiment being described with reference to a drawing. 
     
    
    
     DETAILED DESCRIPTION OF INVENTION 
     It is assumed for the exemplary embodiment that an initiator I is provided for a conference K to be scheduled in an enterprise E, with the Initiator I of the conference K being identified as a first conference participant KT 1  as well as moderator M of the conference. A further requirement is for the conference participants KT for a conference K to be able to be addressed via a URL address. The URL (Uniform Resource Locator) address is used for addressing in the Internet. The URL address consists of two parts, the determination of the protocol (http, https, ftp etc.) and the actual address (e.g. www.world.de). As a consequence the URL addresses of the conference participants KT are to be determined for a conference K. This can for example be done with the aid of a list L or table, in which the URL addresses are listed for the conference participants specified by name. 
     For the method as claimed in the invention a further list or a number of lists L′ or tables are provided in which an assignment of the URL addresses to the sites and the localities or buildings B of a company U is specified. The conference areas or conference rooms KR which can be used in the individual buildings of the company B for the conference K are shown in this at least one further list L′, with the occupancy times of the conference rooms KR being updated. 
     The FIGURE shows a typical structure of a company U which comprises a site A with two buildings B 1 , B 2  and a second site B with a third building B 3 . The two sites A, B are connected to each other for communication via a corporate network, especially a local area network LAN, —indicated additionally in the FIGURE by dotted double-ended arrows. For the control of the conferences K a conference server KSER is provided at each site A, B connected to the local network LAN. Stored in this server are the lists L, L′ described above. For the initialization of a conference K the initiator I of a conference K, depending on their location, communicates with one of the two conference servers KSER. To this end the parameters p of a conference K are transferred by the initiator I to one of the conference participants KSER at the conference server KSER. 
     For example the following parameters p can be suitable for a conference K to be scheduled: 
     Type of conference (K) 
     Conference identification 
     Start time 
     Conference duration 
     End time 
     Names of the conference participants KT 
     URL list of the conference participants KT 
     URL list of the conference resources (e.g. servers) 
     It is assumed in a first example that the initiator I of a conference to be convened K, who at the same time is the first conference participant KT 1 , wishes to initialize a conference K( 1 ) with a second conference participant KT 2 . The Initiator I, as previously explained, enters the corresponding parameters p—for example with the names of the conference participants KT—at his terminal—especially a computer—and transfers this via the local area network LAN to the conference server KSER at the first location A—indicated by a dashed line with an arrowhead. In the conference server KSER the locations or the sites A,B of the two conference participants KT 1  and KT 2  are determined by a search being made in the available lists L, L′ for an assignment of the entered URL address URL of the two conference participants KT 1 , KT 2  and subsequently the location of the conference participants KT. For example in accordance with the lists L, L′ the two conference participants are KT 1 , KT 2  in the first building B 1  of the first site A. 
     The reachability of the presence status of the conference participants KT can be determined by a presence function. In this case a presence module—mostly a presence server is interrogated with the aid of the conference server KSER and of the local network LAN, as to the connection the local area network LAN under which he is preferably accessible or is preferably located—not shown in the FIGURE. Also available in the presence server is information about the personal preferences of conference participants KT in respect of the conference resources such as conference area, i.e. conference rooms KR and conference server KSER or position in the organization. These can be included in the determination of the conference areas or conference resources, especially if conference participants KT can only participate some of the time or the conference area is not accessible in the available time. 
     After the determination of the location area of the two conference participants KT 1 , KT 2  in the first building B 1  a conference area or conference room KR can be determined with the aid of the lists L, L′ and the information requested from the presence server. In the actual case the conference server KSER can determine that the conference K is taking place for just two conference participants KT 1 , KT 2  in the office of the first conference participant KT 1  or the Initiator I. Alternatively a non-occupied conference room KR in the first building B 1  can also be provided for the conference K. In this case a conference calendar—not shown—is investigated as to whether a conference room is free in the first building B 1  at the time of the conference and is subsequently booked. The conference calendar is to be managed appropriately for the company U, i.e. is to be updated. 
     After the conference area is determined, messages N are mapped in the conference server KSER which typically contain the following information: 
     Type of conference K 
     Participants in conference K 
     Conference area or conference room KR 
     Time T of the conference K including start time 
     Intended duration of the conference K 
     Moderator M of the conference 
     Initiator I of the conference 
     Messages N formed in this way in the conference server KSER are transmitted via the local area network LAN to the two conference participants KT 1 , KT 2  involved—shown in the FIGURE by dashed line with an arrowhead—and the time T is stored if necessary in a calendar of the terminals of the conference participants KT 1 , KT 2  for a reminder before the beginning of the conference. 
     Shortly before a transmission of the message N to the two conference participants KT 1 , KT 2  the reachability of the conference participants KT can likewise be determined through a presence function. In this case the current call processing status of a conference participant KT can be established, for example busy or free or call redirection set, as well as the networks and terminals via which the conference participants KT can be reached. This is advantageous since, if the message N cannot be transferred via the local area network LAN and another network, for example a mobile network INT has to be employed for the transmission of the message. 
     The respective conference participants KT can, where necessary, be sent navigation information indicating their conference area or conference room KR, with such information especially involving address information—but also very detailed information such as building of a company or floors in the buildings. The navigation information or address information is entered into a navigation system and with the aid of the navigation system the respective conference participant KT is directed to their respective conference area or conference room KR. This can be of interest both for navigation systems in motor vehicles but also for handhelds, with the aid of which a conference room KR is to be found in a building or company. 
     In a second example it is assumed, that additionally a group of conference participants KT(G) is to be included in a conference K ( 2 ). The conference K is initialized as described above at the conference server KSER responsible by transmission of the corresponding parameters p and with the aid of lists L, L′, as already explained, it is established that the group of conference participants KT(G) is located in the second building B 2  of the company U. If the group of conference participants KT(G) has more than two conference participants KT a conference area or a conference room KR in the second building B 2  is sought, unless the preferences of individual conference participants KT, for example the Initiator I, give priority to another conference area. If a conference area or a conference room KR in the second building B 2  is available at the intended time T of the conference K( 2 ), this conference area or this conference room KR is determined and the conference participants KT involved are sent a corresponding message N about the conference type, time T, conference room KR, number of conference participants, moderator M and initiator I—not shown. Alternatively, if the conference area is not available in the second building B 2  the conference area or the conference room KR in the first building B 1  can be determined and the conference participants KT involved can be notified through a corresponding message N. 
     In a third example it is assumed that the additional group of conference participants KT(G) which is to be included in a conference K( 3 ) is located in a third building B 3  in the second site B of the company U. By transmitting the parameter p of the conference K to be convened to the conference server KSER responsible at the first site A of the company U a conference K is initialized. In this case it is established in the conference server KSER with the aid of the lists L, L′ that the first group of conference participants KT(G 1 ) is not located at the first but at the second site B. To determine the location areas of the conference participants KT(G 1 ) at the second location B a corresponding request AF including the parameters p of the conference K is transferred via the local area network LAN from the conference server KSER of the first site A to the conference server KSER of the second site B—indicated in the FIGURE by a dashed line with an arrowhead. The conference areas or the conference rooms KR for the Initiator I and the second conference participant KT 2  at the first site A and the group of conference participants KT(G) at the second site B are determined with the aid of the two conference servers KSER. In this case the additional Information, which is available through the presence function or is interrogated by corresponding control of the presence function, is included in the determination of the conference areas. After an agreement or an exchange of information of the two conference servers KSER about the conference areas determined an identical message N is formed by the two conference servers KSER and transferred to the conference participant KT concerned at their respective site A, B. Since the conference participants KT are located at different sites A, B of the company U and for the conference K( 3 ) two conference areas or conference rooms KR are provided at the two sites A,B, the corresponding conference resources such as conference server KSER and network capacities as well as the conference rooms KR including the conference terminals required for the conference K( 3 ) are reserved or seized for the duration of the scheduled conference K. Furthermore with the aid of one of the two conference servers KSER, shortly before the time at which the conference K starts, a connection is initiated and set up automatically between conference terminals of the conference areas or the conference rooms KR of the two sites A, B. 
     Both audio and also audio-visual conferences can be initialized with the aid of the inventive method, i.e. the conference participants informed about the conference, the conference areas and conference resources, and set up at the intended time. The conferences currently set up can also be controlled in respect of changes to the connected conference participants or a change of moderator or switching of additional connections for the transmission of further information. In this case it should be noted for audio-visual conferences that the terminals are suitable or matched as regards protocols and compression methods and the network resources are suitable for a transmission of audio-visual information. 
     With the aid of the inventive method not only conferences in accordance with the corporate arrangements specified in the exemplary embodiments or distribution of the conference participants can be initialized, but conferences can also be initialized in which the conference participants are located in other or different corporate networks or also in the Internet or are subscribers to these networks, however an assignment of the conference participants to URL addresses and to conference areas and conference resources such as conference servers and network resources are to be provided. Otherwise the effort for determining the location area of the conference participants would increase significantly.