Abstract:
The present invention provides a method, apparatus and system of completing a call when a called party has not answered the call from a calling party. A signal indicating that the called party has not answered the call is detected ( 300 ) and the call is terminated ( 302 ). A message is presented to the calling party that indicates the called party has not answered the call and prompts the calling party to compose a multimedia message to be delivered to the called party ( 304 ). The multimedia message is then sent to a multimedia messaging service server ( 402 ) for subsequent delivery to the called party whenever the calling party completes composition of the multimedia message ( 308 ). This functionality can be implemented using a computer program embodied on a computer readable medium wherein each function is executed using a code segment.

Description:
TECHNICAL FIELD OF THE INVENTION  
         [0001]    The present invention relates generally to the field of communications and, more particularly, to a method, apparatus and system for completing a call when a called party has not answered the call.  
         BACKGROUND OF THE INVENTION  
         [0002]    In a mobile communications system, significant system resources are devoted to completing a call when the called party does not answer the call. For example, the mobile service center (“MSC”) associated with the called party or the central switch office of the network provider is programmed to “forward” or “divert” unanswered calls to a voice mail or unified messaging intelligent peripheral. These unanswered calls can be characterized by the generation of an “announcement”, “busy” or “no-answer” signal. The voice mail or unified messaging intelligent peripheral, which is a cumbersome, expensive and complex network component, then carries on a limited interaction with the calling party. The voice/unified mail intelligent peripheral completes the call by providing an announcement that the called party is unavailable and/or provides the calling party with the opportunity to leave a voice mail message for the called party. This online and timely content exchange is limited because message “composition” requires fairly complex interactions, such as “Press 1 to leave a voice message” and “Press 2 to leave a fax message.” 
           [0003]    In addition, this call completion process increases circuit switching within the network, reduces circuit quality and prolongs the duration or “air-time” of the connection (e.g., silence, hesitation, data rate, etc.). As a result, the network operator incurs increased operation and maintenance costs. In addition, the calling party and the called party are likely to incur additional expenses related to the prolonged “air-time” and the messaging service.  
           [0004]    There is, therefore, a need for a method, apparatus and system for completing a call when a called party has not answered the call that eliminates or minimizes the previously described problems.  
         SUMMARY OF THE INVENTION  
         [0005]    The present invention provides a flexible architecture that allows the calling party&#39;s terminal to complete a call that has not been answered by the called party. Note that the present invention completes an interaction between the parties, rather than just completing a voice call. The functionality provided by the present invention can be implemented solely on the calling party&#39;s terminal or split between the calling party&#39;s terminal and the called party&#39;s MSC. As a result, a network operator&#39;s central office may reallocate “circuit switching” and voice channels for other context, while reducing real-time voice interaction constraints within the network. In addition, messaging content generated by the present invention is transmitted in less expensive “data circuit” channels, such as the Internet.  
           [0006]    For example, the present invention provides a method of completing a call when a called party has not answered the call from a calling party by detecting a signal indicating that the called party has not answered the call and terminating the call. A message is presented to the calling party that indicates the called party has not answered the call and prompts the calling party to compose a multimedia message to be delivered to the called party. The multimedia message is then sent to a multimedia messaging service server (“MMS Server”) for subsequent delivery to the called party whenever the calling party completes composition of the multimedia message. As mentioned above, this method can implemented solely on the calling party&#39;s terminal or split between the calling party&#39;s terminal and the called party&#39;s MSC. Moreover, this method can be implemented using a computer program embodied on a computer readable medium wherein each function is executed using a code segment.  
           [0007]    In addition, the present invention provides a terminal capable of completing a call when a called party has not answered the call from a calling party. The terminal includes means for detecting a signal indicating that the called party has not answered the call, terminating the call, and presenting a message to the calling party indicating that the called party has not answered the call and prompting the calling party to compose a multimedia message to be delivered to the called party. The terminal also includes means for sending the multimedia message to a MMS Server for subsequent delivery to the called party whenever the calling party completes composition of the multimedia message.  
           [0008]    The present invention also provides a system for completing a call when a called party has not answered the call from a calling party that includes a MMS Server and a terminal operated by the calling party that is communicably coupled to the MMS Server. The terminal detects a signal indicating that the called party has not answered the call, terminates the call, and presents a message to the calling party indicating that the called party has not answered the call and prompts the calling party to compose a multimedia message to be delivered to the called party. The terminal then sends the multimedia message to the MMS Server for subsequent delivery to the called party whenever the calling party completes composition of the multimedia message.  
           [0009]    Moreover, the present invention provides a system for completing a call when a called party has not answered the call from a calling party that includes a MSC associated with the called party, a MMS Server and a terminal operated by the calling party. In a first configuration, the MSC detects a signal indicating that the called party has not answered the call, terminates the call, and sends the signal to the terminal to invoke a message. In a second configuration, the MSC detects the signal indicating that the called party has not answered the call, terminates the call, and sends an invoke message to the MMS Server. Also in the second configuration, the MMS Server is communicably coupled to the MSC and sends a message to the terminal indicating that the called party has not answered the call in response to the invoke message. In both configurations, the terminal, which is communicably coupled to the MSC and the MMS Server, presents the message to the calling party and prompts the calling party to compose a multimedia message to be delivered to the called party. The terminal then sends the multimedia message to the MMS Server for subsequent delivery to the called party whenever the calling party completes composition of the multimedia message.  
           [0010]    Other features and advantages of the present invention will be apparent to those of ordinary skill in the art upon reference to the following detailed description taken in conjunction with the accompanying drawings. 
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0011]    For a better understanding of the invention, and to show byway of example how the same may be carried into effect, reference is now made to the detailed description of the invention along with the accompanying figures in which corresponding numerals in the different figures refer to corresponding parts and in which:  
         [0012]    [0012]FIG. 1 is a diagram illustrating a “no answer” or “busy” call completion process in accordance with an embodiment of the present invention;  
         [0013]    [0013]FIG. 2 is a diagram illustrating an “announcement” call completion process in accordance with an embodiment of the present invention;  
         [0014]    [0014]FIG. 3 is a flow chart illustrating a method of completing a call in accordance with the present invention;  
         [0015]    [0015]FIG. 4 is a sequence diagram illustrating a call completion process in accordance with one embodiment of the present invention;  
         [0016]    [0016]FIG. 5 is a sequence diagram illustrating a call completion process in accordance with another embodiment of the present invention; and  
         [0017]    [0017]FIG. 6 is a sequence diagram illustrating a call completion process in accordance with another embodiment of the present invention.  
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0018]    While the making and using of various embodiments of the present invention are discussed in detail below, it should be appreciated that the present invention provides many applicable inventive concepts, which can be embodied in a wide variety of specific contexts. For example, in addition to telecommunications systems, the present invention may be applicable to other forms of communications or general data processing. Other forms of communications may include communications between networks, communications via satellite, or any form of communications not yet known to man as of the date of the present invention. The specific embodiments discussed herein are merely illustrative of specific ways to make and use the invention and do not limit the scope of the invention.  
         [0019]    The present invention provides a flexible architecture that allows the calling party&#39;s terminal to complete a call that has not been answered by the called party. Note that the present invention completes an interaction between the parties, rather than just completing a voice call. The functionality provided by the present invention can be implemented solely on the calling party&#39;s terminal or split between the calling party&#39;s terminal and the called party&#39;s MSC. As a result, a network operator&#39;s central office may reallocate “circuit switching” and voice channels for other context, while reducing real-time voice interaction constraints within the network. In addition, messaging content generated by the present invention is transmitted in less expensive “data circuit” channels, such as the Internet.  
         [0020]    The present invention operates within a multimedia messaging service environment (“MMSE”), which may comprise fixed networks, mobile networks, Global System for Mobile Communications (“GSM”) second generation (“2G”) mobile networks, 3G mobile networks and Internet/IP networks. The MMSE provides users with the ability to view, compose and handle multimedia messages (e.g., submitting, receiving, deleting of multimedia messages) through an efficient packet-data bearer. Multimedia messages consist of one or more media elements, such as text, voice, image and video, and it is the combination of these media elements in an ordered synchronized manner that creates a multimedia presentation, which is also referred to as multimedia content. The MMSE provides all the necessary service elements, e.g. delivery, storage and notification functionality. These service elements may be located within one network or distributed across several networks or network types. The MMSE includes one or more multimedia messaging centers (“MMC”), which include at least a MMS Server a message storage device. The MMC is responsible for storage and handling of incoming and outgoing messages and for the transfer of messages between different messaging systems.  
         [0021]    Referring to FIG. 1, a diagram illustrating a “no answer” or “busy” call completion process in accordance with an embodiment of the present invention is shown. A calling party initiates a call using a terminal as indicated by state  100 . The terminal can be a handheld device or handset, such as a personal data assistant (“PDA”), mobile phone or combination thereof, which has multimedia capability. The terminal or other network element senses a ring tone  102  or a busy tone  104 . A ring tone  102  will place the terminal or network element in a wait state  106 . Thereafter, the terminal or network element will sense an answer  108  or a no answer  110 . If the called party answers  108  the call, the call is completed and the parties “talk” as indicated by state  112 . When one of the parties “hangs up”  114 , the call is terminated and the process is done as indicated by state  116 .  
         [0022]    On the other hand, a busy tone  104  or a no answer  110  will terminate the call and place the terminal or network element in a message state  118 . In the message state  118 , the calling party is given the opportunity to compose a multimedia message that will be delivered to the called party. A multimedia message as observed by a called or calling party is a combination of one or more different media elements in a multimedia presentation that can be transferred between the parties without having to be transferred in real time. If the calling party completes the multimedia message, the multimedia message is sent  120  and a confirmation that the appropriate network element received the multimedia message is received, which will complete the process  116 . If, however, the calling party does not complete the multimedia message or “hangs up”, the process is also terminated  116 .  
         [0023]    Now referring to FIG. 2, a diagram illustrating an “announcement” call completion process in accordance with an embodiment of the present invention is shown. In this case, the called party has selected an announcement, which is a default message or composed a pre-canned multimedia message (e.g., I&#39;m traveling over here . . . picture), to be delivered to a calling party on a no-answer signal. The announcement may provide information and/or an optional redirection address for the reply (e.g., “e-mail, “follow me”, etc.). When the called party&#39;s terminal is unreachable, a network element triggers delivery of the announcement to the calling party. The announcement may offer to have a multimedia message reply or just state some fact.  
         [0024]    A calling party initiates a call using a terminal as indicated by state  200 . The terminal or other network element senses a ring tone  202  or a busy tone  204 , either of which will place the terminal or network element in a wait state  206 . If the calling party “hangs up”  208  before the announcement is triggered the call is terminated and the process is done as indicated by state  210 . If, however, the announcement is triggered  212  (MM notification), the terminal or network element presents the announcement to the calling party as indicated by state  214 . Once the announcement is presented, a confirmation that the terminal received the multimedia message is sent  216  and the process is terminated  210 . The calling party may be given the opportunity to compose a multimedia message that will be delivered to the called party  218  as a reply to the retrieved announcement. If the calling party completes the multimedia message, the multimedia message is sent and a confirmation that the appropriate network element received the multimedia message is received, which will complete the process  210 . If, however, the calling party does not complete the multimedia message or “hangs up”, the process is also terminated  210 .  
         [0025]    Referring now to FIG. 3, a flow chart illustrating a method of completing a call in accordance with the present invention is shown. The process begins with a signal indicating that the called party has not answered the call is detected in block  300 . The signal can be an “announcement” signal, a “busy” signal, a “no answer” signal or any other similar signal. The signal can be generated by a network element, such as the MSC associated with the called party, or by the terminal operated by the calling party. The call is then terminated in block  302  by the appropriate device (MSC or terminal). Thereafter, a message is presented to the calling party indicating that the called party has not answered the call and prompting the calling party to compose a multimedia message to be delivered to the called party in block  304 . The message can be: (1) generated by the terminal in response to the signal, which is generated by the terminal or by the MSC associated with the called party, or (2) received from a MMS Server as a result of an invoke message from the MSC associated with the called party. In addition, the message can be a default message or a customized message as determined by the calling party (a terminal preference), the called party (the announcement) or a network element (MMS Server or MSC associated with the called party). The message may contain one or more multimedia elements.  
         [0026]    If the calling party completes composition of the multimedia message, as determined in decision block  306 , the multimedia message is sent to a MMS Server for subsequent delivery to the called party in block  308  and the process ends in block  310 . The MMS Server stores the multimedia message if the MMS Server is also associated with the called party, or it forwards the multimedia message to the MMS Server associated with the called party for storage. The appropriate MMS Server sends a notification to the called party that the multimedia message has been received and is ready for delivery. As previously mentioned, the multimedia message may include text, pictures and audio files. The MMS Server may also send a confirmation to the terminal indicating successful receipt of the multimedia message. Alternatively, the multimedia message may be sent to another destination, such as an e-mail address. In addition, the multimedia message may be set for deferred delivery on a later schedule, which may be selected by the network operator (e.g., low cost, low priority, quality of service parameters, service plan, etc.), by the called party (e.g., “I&#39;ll be back from my honeymoon on . . . ”, etc.) or by the calling party (e.g., a “birthday card”, etc.). Likewise, the multimedia message may be set for expedited or “rush” delivery on an earlier schedule. If, however, the calling party does not complete composition of the multimedia message or “hangs up”, as determined in decision block  306 , the process ends in block  310 .  
         [0027]    Now referring to FIG. 4, a sequence diagram illustrating a call completion process in accordance with one embodiment of the present invention is shown. This sequence represents a system that includes a terminal  400 , a MMS Server  402  and a MSC  404 , all of which are communicably coupled to one another as indicated by the message flows illustrated. The terminal  400 , which is multimedia service capable and operated by the calling party, initiates a call  406  to the called party. The call  406  is directed though the communications network to a MSC  404  associated with the called party. The terminal  400  detects a signal indicating that the called party has not answered the call and terminates the call  406  in process step  408 . The signal can be an “announcement” signal, a “busy” signal, a “no answer” signal or any other similar signal. The terminal  400  then presents a message to the calling party indicating that the called party has not answered the call and prompts the calling party to compose a multimedia message to be delivered to the called party in process step  410 . The message is generated by the terminal  400  in response to the signal, which is also generated by the terminal  400 . In addition, the message can be a default message or a customized message as determined by the calling party (a terminal  400  preference). The message may contain one or more multimedia elements.  
         [0028]    If the calling party completes composition of the multimedia message in process  410 , the multimedia message  412  is sent to a MMS Server  402  for subsequent delivery to the called party. The MMS Server  402  stores the multimedia message  412  if the MMS Server  402  is also associated with the called party, or it forwards the multimedia message  412  to a MMS Server associated with the called party for storage. The appropriate MMS Server  402  sends a notification to the called party that the multimedia message  412  has been received and is ready for delivery. As previously mentioned, the multimedia message  412  may include text, pictures and audio files. The MMS Server  402  may also send a confirmation to the terminal  400  indicating successful receipt of the multimedia message  412 . In addition, the multimedia message may be set for deferred delivery on a later schedule, which may be selected by the network operator (e.g., low cost, low priority, quality of service parameters, service plan, etc.), by the called party (e.g., “I&#39;ll be back from my honeymoon on . . . ”, etc.) or by the calling party (e.g., a “birthday card”, etc.). Likewise, the multimedia message may be set for expedited or “rush” delivery on an earlier schedule. If, however, the calling party does not complete composition of the multimedia message in process  410  or “hangs up” the process ends. Note that the means for implementing the process described above within the terminal  400  may be accomplished via hardware, software, or a combination thereof.  
         [0029]    Referring now to FIG. 5, a sequence diagram illustrating a call completion process in accordance with another embodiment of the present invention is shown. This sequence represents a system that includes a terminal  400 , a MMS Server  402  and a MSC  404 , all of which are communicably coupled to one another as indicated by the message flows illustrated. The terminal  400 , which is multimedia service capable and operated by the calling party, initiates a call  500  to the called party. The call  500  is directed though the communications network to a MSC  404  associated with the called party. The MSC  404  detects a signal indicating that the called party has not answered the call and terminates the call  500  in process step  502 . The signal can be an “announcement” signal, a “busy” signal, a “no answer” signal or any other similar signal. The MSC  404  then sends the signal  504  to the terminal  400 . The terminal  400  then presents a message to the calling party indicating that the called party has not answered the call in response to the signal  504  and prompts the calling party to compose a multimedia message to be delivered to the called party in process step  506  The message is generated by the terminal  400  in response to the signal. In addition, the message can be a default message or a customized message as determined by the calling party (a terminal  400  preference). The message may contain one or more multimedia elements.  
         [0030]    If the calling party completes composition of the multimedia message in process step  506 , the multimedia message  508  is sent to a MMS Server  402  for subsequent delivery to the called party. The MMS Server  402  stores the multimedia message  508  if the MMS Server  402  is also associated with the called party, or it forwards the multimedia message  508  to a MMS Server associated with the called party for storage. The appropriate MMS Server  402  sends a notification to the called party that the multimedia message  508  has been received and is ready for delivery. As previously mentioned, the multimedia message  508  may include text, pictures and audio files. The MMS Server  402  may also send a confirmation to the terminal  400  indicating successful receipt of the multimedia message  508 . Alternatively, the multimedia message  508  may be sent to another destination, such as an e-mail address. In addition, the multimedia message may be set for deferred delivery on a later schedule, which may be selected by the network operator (e.g., low cost, low priority, quality of service parameters, service plan, etc.), by the called party (e.g., “I&#39;ll be back from my honeymoon on . . . ”, etc.) or by the calling party (e.g., a “birthday card”, etc.). Likewise, the multimedia message may be set for expedited or “rush” delivery on an earlier schedule. If, however, the calling party does not complete composition of the multimedia message in process step  506  or “hangs up” the process ends.  
         [0031]    Now referring to FIG. 6, a sequence diagram illustrating a call completion process in accordance with another embodiment of the present invention is shown. This sequence represents a system that includes a terminal  400 , a MMS Server  402  and a MSC  404 , all of which are communicably coupled to one another as indicated by the message flows illustrated. The terminal  400 , which is multimedia service capable and operated by the calling party, initiates a call  600  to the called party. The call  600  is directed though the communications network to a MSC  404  associated with the called party. The MSC  404  detects a signal indicating that the called party has not answered the call and terminates the call  600  in process step  602 . The signal can be an “announcement” signal, a “busy” signal, a “no answer” signal or any other similar signal. The MSC  404  then sends an invoke message  604  to the MMS Server  402 . The MMS Server  402  sends a message  606  indicating that the called party has not answered the call to the terminal  400  in response to the invoke message. The message can be a default message or a customized message as determined by the called party (the announcement) or a network element (MMS Server  402  or MSC  404  associated with the called party). The message may contain one or more multimedia elements. The terminal  400  then presents the message  606  to the calling party and prompts the calling party to compose a multimedia message to be delivered to the called party in process step  608 .  
         [0032]    If the calling party completes composition of the multimedia message in process step  608 , the multimedia message  610  is sent to a MMS Server  402  for subsequent delivery to the called party. The MMS Server  402  stores the multimedia message  610  if the MMS Server  402  is also associated with the called party, or it forwards the multimedia message  610  to a MMS Server associated with the called party for storage. The appropriate MMS Server  402  sends a notification to the called party that the multimedia message  610  has been received and is ready for delivery. As previously mentioned, the multimedia message  610  may include text, pictures and audio files. The MMS Server  402  may also send a confirmation to the terminal  400  indicating successful receipt of the multimedia message  610 . Alternatively, the multimedia message  610  may be sent to another destination, such as a redirection address provided in the message  606  for the reply (e.g., “e-mail”, “follow me”, etc.). In addition, the multimedia message may be set for deferred delivery on a later schedule, which may be selected by the network operator (e.g., low cost, low priority, quality of service parameters, service plan, etc.), by the called party (e.g., “I&#39;ll be back from my honeymoon on . . . ”, etc.) or by the calling party (e.g., a “birthday card”, etc.). Likewise, the multimedia message may be set for expedited or “rush” delivery on an earlier schedule. If, however, the calling party does not complete composition of the multimedia message in process step  608  or “hangs up” the process ends.  
         [0033]    The embodiments and examples set forth herein are presented to best explain the present invention and its practical application and to thereby enable those skilled in the art to make and utilize the invention. However, those skilled in the art will recognize that the foregoing description and examples have been presented for the purpose of illustration and example only. The description as set forth is not intended to be exhaustive or to limit the invention to the precise form disclosed. Many modifications and variations are possible in light of the above teaching without departing from the spirit and scope of the following claims.