Abstract:
Click-to-dial function whereby the URL sent to the contact center is appended with additional information used within the contact center (ACD) for routing. Function is known under the terms such as: extended URL, URL Encoding, Percent-encoding and the query string (part of a URL that contains data to be passed to web applications such as CGI programs). The method to route a communication from a caller to a specific endpoint in a contact center comprises the routing ( 124 ) of the communication from an entry point of the contact center routing parameter contained in a hypertext link selected by a caller on his endpoint, this contact center routing parameter being irrelevant for routing the communication over Internet. Relates to use of RFC 3986 in call center environment.

Description:
FIELD OF THE INVENTION 
       [0001]    The present invention relates to a method to route a communication from a caller to a specific endpoint in a contact center. The invention also relates to:
       a method to address a communication to a contact center over Internet,   a method to receive a communication over Internet in a contact center,   a caller endpoint,   a communication server of a contact center, and   a document server.       
 
       BACKGROUND OF THE INVENTION 
       [0007]    Internet is a packet switched data network. Internet is also known as “World Wide Web”. 
         [0008]    A contact center is a place where are located many agents to received and to answer communications from callers. Each agent is equipped with an endpoint to receive and answer the communication. An endpoint is the name for the entity on one end of a transport layer connection. Here the endpoint is embodied as a telecommunication endpoint like a phone handset, a mailer application or a chat application or any other kind of telecommunication endpoints that form a user-machine interface to communicate through Internet with a contact center agent. When the endpoint is a phone handset, the contact center is known as “call center”. The caller is also equipped with an endpoint to transmit and receive information through Internet. 
         [0009]    A communication can be addressed to the contact center through the use of the contact center URL (Uniform Resource Locator). The contact center has only one URL or a number of URLs than can answer to a communication. This or these URLs are used to route communications to an “entry point” of the contact center. Each time a communication is addressed to the contact center, this communication has to be routed from the entry point to the adequate agent&#39;s endpoint within the contact center. 
         [0010]    “Communication over Internet” encompasses any exchange or transfer of information through Internet between an agent, within a contact center, and a caller. For example, a communication over Internet may be a phone call or a video conference between an agent and a caller endpoints linked to each other through Internet. In this last case, the communication over Internet is also known as voice over IP (Internet Protocol) or “VoIP”. The communication over Internet may also be a transfer of emails between the agent and the caller or a chat over Internet. 
         [0011]    A URL (Uniform Resource Locator) must be used to address a communication to a desired endpoint over Internet. The URL contains a contact center network address that allows to route the communication to the desired entry point of the contact center through Internet. The contact center network address is an IP address or any information that can be converted into an IP address such as a domain name. Typically, the URL starts with a scheme name and is followed by a hostname. For example, the scheme name is “mailto:” or “sip:”. The hostname may be a combination of a host&#39;s local name with its parent domain&#39;s name. For example, the URL has the following format when SIP (Session Initiation Protocol) is used to communicate over Internet:
       Sip: xxx@yyy.zzz   where:
           xxx is a user name,   yyy.zzz is a hostname, and   zzz is an extension.   
               
 
         [0017]    “xxx” et “yyy” are character strings. “zzz” is a predetermined extension like “.com”, “.fr”, “.eu”, “.gov” and so on. This format is very similar to the one of email address. 
         [0018]    The hostname is a network address. 
         [0019]    A contact center is equipped to handle a large volume of communications, especially for taking orders or servicing customers. Conventionally, a contact center has many contact center agents, each agent being provided with an endpoint to receive or answer communication. Contact center agents can be grouped according to their competence or skills. 
         [0020]    The applicant knows a method to route a communication from a caller from an entry point of the contact center to a specific endpoint in a contact center. The method comprises:
       displaying a hypertext link on a caller endpoint, the hypertext link containing a contact center URL (Uniform Resource Locator) to route a communication to the contact center over Internet,   upon selection of the hypertext link by a caller, addressing a communication to the contact center using the contact center URL contained in the hypertext link,   upon reception of this communication at the contact center, routing the communication from the entry point to the specific endpoint among a plurality of different endpoints of the contact center able to receive this communication.       
 
         [0024]    When such a hypertext links triggers a call when selected, it is also known as “Clik-to-Call” hypertext link. 
         [0025]    In this context, it is desirable to route the call to a specific endpoint of an agent competent to answer the particular needs of the caller. Several methods have been proposed to meet this desire in the context of call centers. 
         [0026]    In a first proposed method, the need of the caller is deduced from the composed phone number. Thus, the call center has to be configured with several different phone numbers. At each phone number is associated a specific agent skill. This method suffer of the drawback that many phone numbers are used. In addition, the management of such a call center may become complex if an agent has several skills. 
         [0027]    A second method consists in directly writing the phone number of the suitable agent in the hypertext link. This supposes that each agent has a direct phone number. Many direct phone numbers are not always available. Furthermore, it is then necessary to implement specific procedure to handle situations like a busy or absent agent. 
         [0028]    A third method is to identify the needs of a caller from the calling phone number. For example, a server searches in a database, the needs associated with the calling phone number and then routes the call according to the identified needs. However many problems may arise. For example, a same calling phone number may be used by different callers having different needs. On the contrary, a same caller may use different calling phone numbers. 
         [0029]    A fourth method is to connect each call to a voice machine that will ask the caller to specify his needs. Once the caller needs are identified, the routing of the call to a specific agent is performed based on the identified needs. 
       SUMMARY OF THE INVENTION 
       [0030]    Accordingly, it is an object of the invention to provide a method to route a communication from a caller to a specific endpoint of a contact center which does not present all the drawbacks of the known methods. 
         [0031]    The invention provides a method to route a communication from a caller from an entry point of a contact center to a specific endpoint of the contact center wherein the routing of the communication from the entry point to the specific endpoint is done by a communication server of the contact center as a function of at least one contact center routing parameter contained in the hypertext link, this contact center routing parameter being irrelevant for routing the communication over Internet. 
         [0032]    In the above method, there is no need to use several contact center network addresses to address the communication to the most suitable endpoint. A single contact center network address may be sufficient because the contact center routing parameter may be varied without varying the contact center network address. 
         [0033]    There is also no need to include in the hypertext link a direct network address of a specific endpoint. In fact, the contact center routing parameter can be sufficient to determine to which specific endpoint the call should be routed. In addition, such a routing need not use the contact center network address. 
         [0034]    Finally, it is not necessary to have a voice machine in order to identify the caller needs before routing the communication to the most suitable agent endpoint. 
         [0035]    The embodiments of the above method to route a call may comprise one or several of the following features:
       the method comprises the concatenation of the contact center network address and the contact center routing parameter to form the contact center URL;   the method comprises:   incorporating at least one hypertext link in each document of a set of documents that the caller endpoint can display, the contact center network address contained in those hypertext links being the same whereas the contact center routing parameter contained in those hypertext links varies from one document to the other.       
 
         [0039]    The above embodiments of the method to route a call present the following advantages:
       there is no need to add a new attribute in the hypertext link other than the &lt;&lt;href&gt;&gt; attibute to store the value of the contact center routing parameter,   it implies no modification of the existing telecommunication protocol to transmit the contact center routing parameter.       
 
         [0042]    The invention also provides a method to address a communication to a contact center over Internet, the method comprising:
       displaying a hypertext link on a caller endpoint, the hypertext link containing a contact center URL to route a communication to an entry point of the contact center over Internet, and   upon selection of the hypertext link by a caller, addressing a communication to an entry point of the contact center over Internet using the contact center URL contained in the hypertext link,
 
wherein the displayed hypertext link contains a contact center routing parameter used to route the communication within the contact center to from the entry point of the contact center to a specific endpoint among a plurality of different endpoints able to receive this communication by a communication server of the contact center, this contact center routing parameter being irrelevant for routing the communication over Internet.
       
 
         [0045]    The embodiments of the above method to address a communication to a contact center may comprise one or several of the following features:
       addressing a communication to the contact center comprises sending the contact center routing parameter to the contact center along with a communication request over Internet;   the communication request is an INVITE request of SIP (Session Initiation Protocol).       
 
         [0048]    The invention also provides a method to receive a communication over Internet in a contact center, the method comprising, upon reception of the communication at an entry point of the contact center, routing the communication to a specific endpoint among a plurality of different endpoints of the contact center able to receive this communication by a communication server of the contact center, wherein, within the contact center, the routing of the communication from the entry point of the contact center to the specific endpoint is done as a function of at least one contact center routing parameter contained in a hypertext link selected by a caller on his endpoint, this contact center routing parameter being irrelevant for routing the communication over Internet. 
         [0049]    The embodiments of the above method to receive a communication over Internet in a contact center may comprise one or several of the following features:
       before proceeding to the routing of the call to the specific endpoint, the method comprises:
           extracting the contact center routing parameter from a communication request,   executing an advanced communication routing to determine to which specific endpoint the communication shall be routed as a function of the extracted contact center routing parameter;   
           if no contact center routing parameter is provided, the method comprises routing the communication to a voice machine to collect through a voice interface or via database mining according to a caller identifier, the information needed to route this communication to the specific endpoint;   the collected routing information are formatted using the same syntax as the one used for the contact center routing parameter before executing the advanced communication routing based on the formatted collected routing information so that no modification of the advanced communication routing is needed even if the routed communication was initially received without contact center routing parameter.       
 
         [0055]    The invention also provides a caller endpoint comprising:
       a user interface to present at least one hypertext link, the hypertext link containing a contact center URL to route a communication to an entry point of a contact center over Internet,   a telecommunication application to address a communication to the entry point of the contact center using the contact center URL contained in the hypertext link upon selection of the hypertext link,
 
wherein the hypertext link contains a contact center routing parameter used to route the communication from the entry point of the contact center to a specific endpoint among a plurality of different endpoints of the contact center able to receive this communication by a communication server of the contact center, this contact center routing parameter being irrelevant for routing the communication over Internet.
       
 
         [0058]    The invention also provides a communication server of a contact center, the communication server being able to route a communication received over Internet from an entry point of the contact center to a specific endpoint among different endpoints of the contact center able to receive the communication and the communication server is able to route the communication from the entry point to the specific endpoint as a function of at least one contact center routing parameter contained in a hypertext link selected by a caller on his endpoint, this contact center routing parameter being irrelevant for routing the communication over Internet. 
         [0059]    The invention also provides a document server able to deliver over Internet a document incorporating a least one hypertext link containing a contact center URL to route a communication to an entry point of a contact center over Internet, wherein the hypertext link contains, a contact center routing parameter used to route the communication from an entry point of the contact center to a specific endpoint among a plurality of endpoints of the contact center able to receive this communication by a communication server of the contact center, this contact center routing parameter being constant or dynamically adapted to the destinator of the document, and being irrelevant for routing the communication over Internet. 
         [0060]    These and other aspects of the invention will be apparent from the following description, drawings and claims. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0061]      FIG. 1  is a schematic diagram of a telecommunication system including a contact center; 
           [0062]      FIG. 2  is a flowchart of a method to route a communication in the telecommunication system of  FIG. 1 , 
           [0063]      FIG. 3  is an illustration of a conventional Click-to-Call hypertext link 
           [0064]      FIGS. 4 and 5  are illustration of two kinds of Click-to-Call hypertext link that can be used in the system of  FIG. 1 . 
       
    
    
       [0065]    In the drawings, the same reference numbers are used to designate the same elements. 
         [0066]    In the following description, well-known functions or constructions by a person of ordinary skill in the art are not described in detail. 
       DETAILED DESCRIPTION 
       [0067]    The detailed description of an embodiment of the invention is done, here below, in the context of a call center. However, this is only for illustration purpose and what is described may readily be applied by a skill man to any kind of communication over Internet like email or chat. 
         [0068]      FIG. 1  shows a telecommunication system  2  having many caller endpoints and at least one contact center. For simplicity only two caller endpoints  4  and  6  and one contact center  8  are shown. 
         [0069]    Endpoints  4  and  6  are linked to contact center  8  through Internet  10 . 
         [0070]    Each endpoint  4  and  6  is a telecommunication terminal that includes
       a user interface to present documents having Click-to-Call hypertext links and to select the hypertext link,   an electronic calculator  14  able to execute a telecommunication application  16  to call over Internet, and   a phone handset  17  to vocally communicate over Internet.       
 
         [0074]    For instance, endpoints  4  and  6  are computers. Accordingly, the user interface has a screen  12 , a keyboard  18  and a pointer like a mouse  20 . Electronic calculator  14  is the computer central unit. 
         [0075]    Each endpoint  4  or  6  is equipped with different multimedia applications that allow displaying on screen  12  different kind of documents having hypertext links. For example, each endpoint  4  or  6  has one or several multimedia application among the following:
       a word processing application to display text documents,   an Internet navigator to display HTML (Hyper Text Markup Language) pages,   an email processing application to display email containing hypertext links.       
 
         [0079]    For example, endpoint  4  has an Internet navigator that display a HTML page  22  containing a Click-to-Call hypertext link  24 . Page  22  is, for example, a page that offers to sell new laptops. Link  24  will be described in more details in view of  FIG. 4 . 
         [0080]    Endpoint  6  has an email processing application that displays an email  26  having a Click-to-Call hypertext link  28 . For example email  26  is an email from a contact center agent specialised in printer sells. Link  28  will be described in more details in view of  FIG. 5 . 
         [0081]    Contact center  8  includes many contact center agents in charge to answer to calls received over Internet. Typically, contact center  8  has more than ten or hundred agents. For simplicity, only three agents  30 - 32  are shown. We assume that each agent  30 - 32  has his own specific skill to answer question. Thus depending on the question topic, the call should preferably be routed to a specific one of these agent groups. For example, agents  30 ,  31 ,  32  are specialized in printers, laptops and screens, respectively. 
         [0082]    Each agent is equipped with an endpoint that includes a telephone to answer phone calls. Here, agents  30 ,  31 ,  32  are equipped with endpoints  34 ,  35 ,  36 , respectively. For simplicity, only the telephone of each endpoint  34 - 36  is represented in  FIG. 1 . 
         [0083]    Each endpoint is connected through a local network to a communication server  42 . Communication server  42  receives every Internet phone call and routes it to the suitable endpoint. Server  42  is connected to Internet  10  through a single entry point  43 . The entry point  43  can be addressed using a network address common to every telephone call received. This network address is included in a contact center URL. Here this URL is a SIP (Session Initiation Protocol) URL. Thus, whatever is the agent to be called, the caller shall use the same common contact center network address. 
         [0084]    Communication server  42  runs a telecommunication application  44  to receive phone call over Internet. For instance, telecommunication application  44  is a SIP application. 
         [0085]    Application  44  has a need extractor module  46  to, if possible, automatically identify the needs of the caller from a communication request. More precisely, extractor  46  is able to extract from a destination field in a communication request a contact center routing parameter. Module  46  will be described in more details in view of  FIG. 2 . 
         [0086]    Communication server  42  also runs an Advanced Communication Routing (ACR) module  48 . Module  48  is able to route a phone call from the entry point  43  to the specific endpoint which is the most suitable to answer the phone call as a function of the contact center routing parameter. 
         [0087]    Communication server  42  is connected to a voice machine  50  that can retrieve information from a caller. For instance, machine  50  is able to vocally ask questions to the caller and to record his answers. Caller may answer vocally to machine  50  questions or using dual tone generated when pressing its endpoint key or by other means. 
         [0088]    Finally, system  2  also includes at least one document server  54  connected to a memory  56  storing a set  58  of documents. Server  54  allows to download through Internet  10  any documents of set  58  on endpoints like endpoints  4  and  6 . Each document of set  58  includes a Click-to-Call link to call contact center  8 . Each of those links includes a common network address that correspond to contact center  8  as well as a contact center routing parameter. The value of the contact center routing parameter is different from one document of set  58  to the other. For example, server  54  is a WEB server or HTTP (Hyper Text Transfer Protocol) server. 
         [0089]    The operation of system  2  will now be described with reference to  FIGS. 2 to 5 . 
         [0090]    Initially, in step  70 , the set  58  of documents is prepared. These documents are HTML pages. 
         [0091]    First, in operation  72 , a Click-to-Call hypertext link  74  ( FIG. 3 ) is created. As illustrated in  FIG. 4 , link  74  is delimited by two tags “&lt;a” and “&gt;”. These two tags enclose an SIP URL attribute  76 . Attribute  76  has an attribute name “href” and an attribute value  78 . Attribute value  78  contains the SIP URL of the contact center  8 . The SIP URL format is the one defined in the SIP standard. Here the SIP URL to call is sip:12345678@companyname.com. This SIP URL contains the network address 12345678@companyname.com. This network address is the one of contact center  8 . 
         [0092]    In operation  74 , the value of a contact center routing parameter is chosen. This parameter has a parameter name and a parameter value. Different values for the same parameter name are possible. Typically, the parameter value is chosen according to the content of the document in which it will be introduced. The parameter value may also be chosen according to information on the caller if, for example, the caller has been identified before building the contact center routing parameter. 
         [0093]    For illustration, in link  24 , the parameter name is “Skillproduct” (refer to  FIG. 4 ). The value of this parameter is chosen according to the following table as a function of the document topic: 
         [0000]    
       
         
               
               
               
             
           
               
                   
                   
               
               
                   
                 Document topic 
                 “Skillproduct” parameter value 
               
               
                   
                   
               
             
             
               
                   
                 Laptops 
                 Laptops 
               
               
                   
                 Screen 
                 Screen 
               
               
                   
                 Printer 
                 Printer 
               
               
                   
                   
               
             
          
         
       
     
         [0094]    Subsequently, in operation  82 , the contact center network address, a question mark and the contact center routing parameter are concatenated to obtain an extended SIP URL. The SIP URL in link  74  is then replaced by the extended SIP URL to obtain link  24 . This results in a new Click-to-Call hypertext link shown in  FIG. 4 . In this example, the former SIP URL sip:12345678@companyname.com is replaced by the extended SIP URL: 
         [0095]    sip: 12345678@companyname.com?Skillproduct=laptops. 
         [0096]    The value “laptops” of the contact center routing parameter has been chosen because link  24  is introduced in the document which deal with laptops. The question mark is used to delimit the contact center SIP URL from the contact center routing parameter. 
         [0097]    At the end of operation  82 , link  24  is incorporated in page  22 . 
         [0098]    Operations  72 ,  74  and  82  are repeated to incorporate at least one Click-to-Call hypertext link in each document of set  58 . These Click-to-Call links have in common the same contact center network address. However, the parameter value varies from one document to the other. 
         [0099]    In operation  90 , the documents containing link  24  and similar are saved in memory  56  and are part of set  58 . 
         [0100]    Thereafter, in step  92 , the internet navigator of endpoint  4  downloads page  22  dealing with laptops and link  24  is displayed on screen  12 . 
         [0101]    Then, in step  94 , the user interested in having further information on laptops discussed in page  22 , selects link  24 . For example, the user clicks on link  24  with the help of mouse  20 . 
         [0102]    Upon selection of link  24 , in step  96 , application  16  automatically triggers a call to the entry point  43  of contact center  8  over Internet  10 . 
         [0103]    More precisely, in operation  98 , calculator  14  runs application  16 . Once running, in operation  100 , application  16  retrieves the contact center SIP URL to call from link  24 . 
         [0104]    In addition, in operation  102 , application  16  prepares a communication request and copies in a destination field of the communication request the extended SIP URL included in link  24 . Here, the communication request is used to warn the called party that someone wants to establish a call with him. The communication request is named “INVITE request” in SIP. The destination field of the INVITE request is the header field “to” in the INVITE request. 
         [0105]    For further detail on the INVITE request and the header field “to”, the reader may refer to the SIP standard. 
         [0106]    Finally, in operation  104 , the prepared communication request is sent to called party corresponding to the retrieve SIP URL, i.e. contact center  8 . 
         [0107]    The network address in the SIP URL is used to route the call request to the entry point  43  of contact center  8  through Internet  10 . On the contrary, the contact center routing parameter is irrelevant for routing through Internet  10  and therefore is not used to route the request through Internet  10 . This contact center routing parameter is simply ignored or not taken into account by Internet routing equipment. 
         [0108]    Thereafter, in step  106 , communication server  42  receives the communication request. 
         [0109]    In step  108 , extractor module  46  checks if a contact center routing parameter is present in the destination field of this request. 
         [0110]    In the affirmative, in step  110 , module  46  extracts the contact center routing parameter and transmits it to ACR module  48 . 
         [0111]    In step  122 , ACR module  48  determines to which endpoint the call should be routed. This determination is based on the contact center routing parameter value extracted. In this example, the contact center routing parameter value is “laptops”. Thus, module  48  determines that the call is to be routed from the entry point  43  to endpoint  35 . 
         [0112]    In step  124 , module  48  routes the received call from the entry point  43  to endpoint  35 . Thus, agent  31 , which is the most suitable agent to answer question relating to laptops, can take the line and answer the caller question about laptops. 
         [0113]    If in step  108 , there is no contact center routing parameter in the receive communication request, then, in step  126 , module  46  routes the call to voice machine  50 . 
         [0114]    In step  128 , voice machine  50  takes the line and then vocally asks questions to the caller. Machine  50  also records answers to its questions. For example, questions are purposed to identify the caller needs. Once the caller need is identified, machine  50  automatically builds a contact center routing parameter using the same syntax as the one used in the click-to-call links. For example, if the identified caller need concerns laptops, machine  50  build the following contact center routing parameter: 
         [0115]    SkillProduct=laptops. 
         [0116]    The built contact center routing parameter is transmitted from voice machine  50  to ACR module  48 . Then the method continues to step  122 . 
         [0117]    Thus, it can be noted that an ACR module able to handle call received with a contact center routing parameter can, without any modification, handle call received without contact center routing parameter. 
         [0118]    The operation of system  2  when a user clicks on link  28  is similar to what has been described in reference to link  24 .  FIG. 5  shows that link  28  contains a contact center routing parameter different from the one of link  24 . This contact center routing parameter is intended to route the call from the entry point  43  to the endpoint of the last contacted agent. To this end, link  28  contains a contact center routing parameter whose name is “lastContactedAgent” and whose value “ClientId”. “ClientId” is an identifier used to retrieve the list of agents that have been in contact with the identified client, stored in the contact center. This list may be updated by other interaction between the client and the agents, so the hypertext link will lead to the true last contacted agent even if it is clicked long after the sending of the email that contains it. 
         [0119]    Many other embodiments are possible. For example, several Click-to-Call hypertext links including contact center routing parameters can be incorporated in the same document. 
         [0120]    Several contact center routing parameter can be included in the same Click-to-Call hypertext link. 
         [0121]    Click-to-Call hypertext links can include further parameters which are not used to route the call to a specific telephone group within the contact center. For example, a further parameter indicates the URL (Uniform Resource Locator) address of the page containing the Click-to-Call link selected by the caller. This URL address may be used in the contact center to display on the agent endpoint used to answer the call the same document as the one displayed on the caller endpoint. 
         [0122]    Voice machine  50  may be omitted. 
         [0123]    The caller endpoint may take other form than a computer. For example, the caller endpoint is a Personnel Digital Assistant (PDA), a laptop, a mobile phone or any other kind of endpoint able to display and to select a Click-to-Call hypertext link. 
         [0124]    System  2  may include a SIP gateway connected between Internet  10  and a PSTN (Public Switched Telephone Network). The SIP gateway convert communication transmitted through the PSTN into telephone called transmitted through Internet  10  and vice-versa. Thus a caller can address a communication to contact center  8  using an endpoint directly connected to the PSTN. This communication will not be associated with a contact center routing parameter because it is not triggered by the selection of a click-to-call link. However, as explain above, contact center  8  can handle such a communication received without contact center routing parameter. 
         [0125]    SIP standards define non-secure SIP and secure SIP. The above teaching applies to both of them. 
         [0126]    Furthermore, what has been described above in the specific case of phone calls can readily be applied to communications like emails and chat. In this case, communication server  42  is equipped with a telecommunication application to receive and send emails or to chat over Internet. Each agent endpoint is able to receive and send email or to chat over Internet. Contact center  8  has, for example, only one entry point  43  for email and for chat. This entry point  43  is addressed using a network address common to every email and chat. This common network address is known as an email address. On the caller terminal, a hypertext link containing an extended email address is displayed. The extended email address is the result of the concatenation of the contact center email address and the contact center routing parameter. Thereafter, the routing of email or chat within the contact center is performed in a very similar way as what has been disclosed for phone calls. 
         [0127]    Within the contact center, the endpoint can also be any kind of machine able to automatically answer to caller. For example, the endpoint can be
       an IVR (Interactive Voice Responder) that may use text-to-speech conversion to provide the caller with the information needed,   a call-back machine that is arranged so that the agent with the good skill call the caller latter on,   a voice mail box to leave a vocal message to the appropriate agent,   an answering machine that automatically delivers a message to the caller if no agent is reachable.       
 
         [0132]    However, the endpoints are not HTTP servers. 
         [0133]    The contact center routing parameter may also be included in a hypertext link by adding a special additional attribute to this hypertext link that contains this parameter. In this case, the parameter is not included in the contact center URL. 
         [0134]    Data mining may also be used to determine the routing parameter of a communication received without this parameter from a caller identifier. For example, the caller identifier is the caller phone number. The caller identifier is used to retrieve information on the needs of this caller. Data mining may be used to replace voice machine  50 .