KR100826697B1 - Apparatus, system, and method for providing voicemail service using presence status in packet data messaging system - Google Patents

Abstract

The apparatus, system and method of the present invention provide a voicemail service using a packet data messaging service, such as a multimedia message service (MMS). Upon detecting that the presence status of the destination device is "not available", the voicemail message is recorded at the originating mobile station and the packet data message through a packet data messaging service center such as a multimedia messaging service center (MMS-C). Is sent to. If the destination device is a destination mobile station subscribed to a packet data messaging service, the packet data message is attached to the destination mobile station.

Description

APPARATUS, SYSTEM, AND METHOD FOR PROVIDING VOICEMAIL SERVICE USING PRESENCE STATUS IN PACKET DATA MESSAGING SYSTEM}

This application claims the priority of US Provisional Application No. 60 / 574,757, filed May 26, 2004, entitled "Interworking Between Wireless Voicemail and MMS for Efficient Use of Network Resources." Assigned to the assignee of the invention and incorporated herein by reference.

The present invention relates generally to apparatus, systems and methods for providing voicemail services through voicemail systems, in particular packet data messaging systems.

Voicemail systems provide a sender mechanism for recording voice messages that can be retrieved by a destination party. Typically, the voicemail box associated with the number of telephones of the destination party is used to store voicemail messages. The destination party retrieves the message by accessing the voicemail server that maintains the voicemail box and entering the appropriate identification and security information. In conventional voicemail systems, real-time calls, such as circuit switched calls or virtual line calls, are maintained by the voicemail server while voice messages are attached or retrieved. However, conventional systems have substantial disadvantages in environments where communication resources are limited. In conventional wireless communication systems, for example, bandwidth and communication channels are valuable resources used for retrieving and attaching voicemail messages. Since only one party sends a voicemail message at any particular time, a short latency real time communication link is not required. Using circuit switched calls in a circuit switched network or virtual circuit calls in a packet switched network for transmitting or retrieving voicemail messages, radio resources are inefficiently used. In systems that use packet-switched networks, such as Voice over Internet Protocol (VoIP) networks, establishing a real-time call for voicemail submission or retrieval uses resources inefficiently because a voice-quality call is established for a virtual circuit-switched connection. do. Data packets exchanged during voicemail calls are unnecessarily processed as high priority and low latency data packets required for real time calls.

Accordingly, there is a need for an apparatus, system, and method for efficiently providing voicemail services in a wireless communication system.

1 is a block diagram of a communication system in accordance with an exemplary embodiment of the present invention.

2 is a block diagram of an exemplary communication system in which the first mobile station is the originating device and the second mobile station is the destination device.

3 is a block diagram of an originating mobile station in accordance with an exemplary embodiment of the present invention.

4 is a flow diagram illustrating a method of providing a voice service using a packet data messaging service in accordance with an exemplary embodiment of the present invention.

The present invention relates to an apparatus, system and method for efficiently providing a voicemail service in a wireless communication system. Voice messages are attached and retrieved using a packet data messaging system, such as a multimedia message service (MMS) system. Resources are efficiently managed by minimizing real-time call durations in a wireless communication system. Voicemail messages are exchanged using higher latency packet data transmissions than are required for voice quality calls. Voicemail messages attached by the wireless user are recorded at the originating mobile station and sent as packet data messages over a packet data communication link. Voicemail messages retrieved by the wireless user are received at the destination mobile station via a packet data communication link and stored in the mobile station's memory. Using a packet data messaging system maximizes the use of wireless communication resources for voicemail services. Because high latency may be tolerated in the transmission of packet data messages, packet data messages, including voicemail messages, for example, may have a lower quality of service (QoS) than required by virtual circuit switched calls in packet switched networks. Can be sent efficiently to the level. Thus, communication resources are efficiently allocated using QoS policies that can increase latency while using channels with higher data rates than virtual circuit switched calls.

1 is a block diagram of a communication system 100 in accordance with an exemplary embodiment of the present invention. Outgoing mobile stations 106 communicate with a base station 108 of the outgoing network 110 via wireless communication channels 112. At least a portion of outgoing network 110 includes a wireless communication system, which can be any cellular, wireless, optical or other wireless system that easily exchanges signals wirelessly with at least one mobile station 106. Examples of suitable wireless communication systems include cellular telephone systems that operate according to Code Division Multiple Access (CDMA) or Pan-European Mobile Communications (GSM) standards. The wireless communication system of the originating network 110 has one or more base stations 108 that exchange signals wirelessly with the mobile stations 106 to form communications with the mobile stations 106. Base stations 108 are connected to a real time communication network 114 that routes mobile station calls in accordance with known techniques. The real time communication network 114 is any combination of routing and / or switching equipment, communication links, and infrastructure suitable for forming a real time communication link between the base station 108 and the destination device 118 of the destination network 120. It includes. In a typical embodiment, the real time communication network 114 is one that easily exchanges data packets using the Internet Protocol (IP) to form a virtual circuit switched communication link between the base station 108 and the destination device 118. It is a packet switched network including the above Internet Protocol (IP) routers. According to known techniques, a real time call may be established between the mobile station 106 and the destination device 118 by prioritizing the transmission of data packets to manage the transmission of the data packets. Real-time communication network 114 includes equipment for interfacing and managing communications with mobile station 106 via base station 108. For example, real-time communication network 114 may include a mobile switching center emulator (eMSC) in any circumstances. The cloud-shaped pattern representing the real-time communication network 114 in the figures is an outgoing network to describe that components within the outgoing network 110 and destination network 102 may be considered as part of the real-time communication network 114. It is shown to overlap 110 and destination network 102. In addition, some of the equipment and infrastructure used to establish communications over the real-time communications network 114 may be utilized by the packet data messaging system just discussed.

Packet data messaging systems transmit data packets over a packet switched network to exchange messages including voicemail messages. The packet data messaging system may be any type of packet data system that provides a mechanism for routing data packets including files or other information representing the contents of voicemail messages. Examples of suitable packet data messaging systems include electronic mail (e-mail) capable of routing email messages with attached audio files. In a typical embodiment, a packet data messaging system is a multimedia messaging service (MMS) that facilitates the exchange of text, video, audio and graphics files between suitably equipped mobile stations 106 and other devices served by the MMS system. System. Other devices may be serviced by the same wireless network, different wireless networks, wired networks, or computer networks. The packet data messaging service center stores and manages packet data messages exchanged with mobile stations 106. In an exemplary embodiment, the packet data message service center is a multimedia messaging service center (MMS-C) 116 that stores and manages multimedia messages exchanged with mobile stations 106. MMS-C 116 includes an MMS server and an MMS relay (not shown in FIG. 1). In some circumstances, other equipment, servers, networks, and storage can be connected to the MMS-C 116. For example, temporary message storage and related message storages may be used to store MMS messages. Those skilled in the art will readily appreciate that various topologies, protocols, architectures, and implementations of communication system 100, originating network 110, and destination network 102 that may be used based on these techniques apply to known techniques. Will recognize. The functions and operations of the block diagrams described in FIG. 1 may be implemented in any number of devices, circuits, or infrastructure. Two or more of the functional blocks may be integrated into a single device, and the functions described as being performed as any single device may be executed by the various devices. For example, the communication link between the base station 108 and the MMS-C 116 may include other individual originating network 110 elements not shown in FIG. 1, such as a base station controller (BSC) and a packet data access gateway switching node (PDSN). Include.

In an exemplary embodiment, communication system 100 employs Voice over Internet Protocol (VoIP) techniques for packet switched networks. Session Initiation Protocol (SIP) facilitates the formation of virtual circuit switched calls between callers and callees, such as between the originating mobile station 106 and the destination device 118.

According to certain circumstances, the wireless communication system may include a voicemail origination network 110, a voicemail destination network 102, or both. Thus, mobile station 106 may be used to generate voicemail for another party, or the communication device of another party may be mobile station 106 on the same wireless network or mobile station 106 on another wireless network. It can be used to receive voicemails attached by other parties. In the exemplary embodiment shown in Figure 1, another party's device (destination device 118 is described as being connected to originating network 110 via destination network 102. However, in still other situations, destination Network 102 and originating network 110 may be the same network Communication networks 102 and 110 may include any number of wireless, wired, computer, internet or intranet networks.

Presence server 104 includes hardware and software for receiving and storing presence information corresponding to destination devices 118. Destination device 118 may have some of several presence states, including, for example, “Busy”, “Do Not Disturb”, “No Time”, and “With Time”. Destination devices 118 registered with presence server 104 optionally transmit presence status update messages to presence server 104. When a change in the presence status occurs at a particular destination device 118, the destination device 118 provides the appropriate presence status update to the presence server 104. Changes in presence status can occur automatically (eg, without user action). For example, when the destination device is turned off by the user, before disconnecting the destination device 118 from the network, the destination device 118 updates the presence server status to "powered off". Similarly, when the device is turned back on, the presence state is automatically updated to the "available" state. In other words, the change in the presence status can be caused by the intentional operation of the user of the destination device 118. For example, if a user wants to join another business but can monitor incoming text and other messages when it cannot be interrupted by real-time call alerts, the user may intentionally set the presence status to "do not disturb". This can be supplemented by recording a voice message that will be accessible via the presence status further explaining the absence reason, such as “I have no time until 11:00 AM while joining the meeting”. When a call is attempted through the destination device 118, the caller first obtains the presence status of the destination device 118. In response, the presence server 104 provides the current presence status to the originating device. In an exemplary embodiment, the voicemail procedure may be invoked by the originating device if the destination device 118 is not available. In any environment, the presence server 104 may be a destination party proxy, such as a network based entity operated by the destination party.

According to an exemplary embodiment of the present invention, mobile stations 106 exchange MMS messages, including voicemail messages, with MMS-C 116. After the originating device receives a return status message indicating that the destination device 118 cannot receive the call, the caller (caller) records a voicemail message for the destination party (caller) at the destination mobile station. The voicemail message is stored at least temporarily in the memory of the originating mobile station and sent to the destination network 102 via the MMS-C 116. The attached voicemail message for the user of the destination mobile station 118 is sent from the MMS-C 116 to the destination mobile station 118 as an MMS message. The MMS message is stored in the memory of the destination mobile station 118 and reproduced locally when the user accesses the voicemail. In some situations, the voicemail message may be streamed to the destination mobile station 118 to play the voicemail message before the entire message file is sent. Thus, a packet data message, such as an MMS message containing a recorded voicemail message, is sent to the destination network 102 via a packet data communication link, such as an MMS communication link.

2 is a block diagram of a typical communication system 100 in which the first mobile station 106 is a source device (originating mobile station 202 and the second mobile station 106 is a destination device (destination mobile station 204). In a typical situation discussed in relation to this, the originating mobile station 202 communicates through the originating network 110, and the destination mobile station 204 communicates through the destination network 102, where the originating network 110 and the destination network ( 102 each includes IP routers that each include at least partially MMS-C 116, 208 as well as a real time communication network 114. For clarity, base stations 102 and other communication equipment are shown in FIG. Not shown Presence server 104 in destination network 102 provides presence status services for destination devices 118, such as destination mobile station 204. Those skilled in the art will be aware of these and known techniques. So It will be readily appreciated the various topologies, protocols, structures, and implementations of communication network 100 that may be employed in. The functions and operations of the blocks described in Figure 2 may be any number of devices, circuits, or infrastructures. Two or more of the functional blocks may be integrated into a single device, and the functions described as being performed by any single device may be implemented in connection with several devices, for example, a presence server. The functionality of 104 may be implemented within an eMSC (not shown) or proxy service server (not shown).

The voicemail transfer procedure is invoked when the originating mobile station 202 attempts to call the destination mobile station 204 and the call is not complete. According to known techniques, the originating mobile station 202 initiates a new call to the communications equipment of the destination network 204 via the equipment of the originating network of the real time communications network 114. In an exemplary embodiment, the originating mobile station 302 sends a presence status request message before attempting a VoIP call to the destination mobile station 204. The presence server 104, or proxy server, responds to status return messages and presence status request messages. In some circumstances, the originating mobile station 202 may begin to form a VoIP call prior to or concurrent with sending the presence status request message. For example, an "invitation" message may be generated and sent using the SIP from the originating mobile station 202 with the presence status request message. Based on the information sent to the presence server 104 about the status of the destination mobile station 204, the presence server 104 generates and sends a status return message. In an exemplary embodiment, the presence status request message and status return message are sent according to a standardized presence server protocol such as Extensible Markup Language (XML) Configuration Access Protocol (XCAP). The status return message includes information indicative of the presence status of the destination mobile station 204 and may include coded values indicative of the status and / or text, audio, photographic, cartoons describing the status of the destination party. , And a multimedia file including any combination of video. In an exemplary embodiment, the multimedia information is transmitted to the originating mobile station 202 via a packet messaging system. The originating mobile station 202 provides the multimedia information to the destination party. For example, the originating mobile station 202 may play the audio celebration message returned with the status return message. If the presence status returned from the presence server is "out of time" or any other condition that excludes direct voice communication between the caller and the called party, the originating mobile station 202 captures audio signals via the microphone and / or Or the camera captures video signals and records a voicemail message by storing a digital representation of the signals in memory. Examples of suitable audio formats include WAV, EVRC, and AMR files. Examples of suitable formats for storing video or multimedia files include the MPEG4 format. Those skilled in the art will recognize various other formats that can be used to store and transmit audio, video and multimedia files. In some circumstances, the presence status message may include a list of multimedia formats supported by the destination device, such as multipurpose Internet multimedia extended or MIME formats. Thus, the originating device message may be enforced on the type and format of media supported by the destination device. If the destination device is capable of only voice and text, then the messages recorded and transmitted by the originating device may be restricted to this type of media only.

After properly processing the voicemail message, the originating mobile station 202 generates the MMS message addressed to the destination mobile station 204 using the destination mobile address. Examples of suitable destination addresses include an email address or any address routable using the Internet Protocol (IP). Since in a typical embodiment the call is a VoIP call, the addressing information for the destination mobile station 204 is formed upon session initiation of the virtual circuit switched call (VoIP call). Thus, Internet routable addressing information is available at the originating mobile station 202 or through a network-resident proxy device, such as a SIP signaling controller, and any MMS messages from the originating mobile station 202 to the destination mobile station 204 may be lost. It can be routed using the destination address used for the VoIP call. In some situations, the destination address may be stored at the originating mobile station 202 and associated with the destination mobile station 204 telephone number. For example, an internet routable destination address, such as an email address, may be stored in the address book of the originating mobile station 202.

The originating mobile station 202 generates a multimedia messaging service (MMS) message that includes a file or other data representing the voicemail message. In an exemplary embodiment, the MMS message includes the voicemail message as an attached digital file and includes the destination address of the destination mobile station. The MMS message is sent to the MMS-C 116 and routed to the MMS-C 208 of the destination network 102 via a communication system in accordance with known MMS techniques. In general, the MMS message is routed to the multimedia server of the MMS-C 208 based on the destination address and stored in the memory of the MMS-C 208.

The MMS server of the MMS-C 208 attaches the voicemail message to the destination mobile station 204. According to MMS techniques, for example, MMS-C 208 stores the content of an MMS message and makes it available as a dynamically generated URL link in a local data file. In an exemplary embodiment, a data file, such as a WAV audio file representing a voicemail message, is associated with an MMS message. If the data file is not attached to the destination mobile station 204, a notification is sent to the destination mobile station 204 indicating that the message is reached and available for download. According to a particular configuration of the destination mobile station 204, MMS messages may be retrieved with or without user intervention. In some circumstances, the message may be streamed to the destination mobile station 204 such that the voicemail message is played before the entire file is transmitted to the memory of the destination mobile station 204.

Although various protocols, signaling schemes, and formats may be used to attach the MMS message to the destination mobile station 204, established MMS techniques are used in the exemplary embodiment. For example, MMS-C 208 generates and sends an MMS notification message to destination mobile station 204 using a wireless application protocol (WAP) “push” procedure for short message service (SMS). The MMS communication message includes a URL pointer to a dynamically generated MMS message that contains an audio file representing a voicemail message. After receiving the MMS communication message, the mobile station initiates a data connection providing a TCP / IP network connection. Destination mobile station 204 performs an HTTP (or WSP) "get" procedure to retrieve MMS messages from MMS-C. In a typical embodiment, the MMS message is sent using some of the various protocols used in mobile communication systems. Examples of suitable protocols include M-IMAP, OMA-MM1 and SIP-based MM1. Moreover, email protocols such as IMAP and POP can be used in any environments.

In an exemplary embodiment, the alert message is sent to the destination mobile station 204 after the voicemail message is received at the MMSC 120. The alert message notifies the destination mobile station 204 that the voicemail message is available at MMSC 120. The alert message, along with the MMS message, notifies and restores the voicemail message in error. The alert message is sent to the destination mobile station 204 in accordance with known techniques and protocols. An example of a suitable method for alerting the destination mobile station 204 includes sending an alert message using a Short Message Service (SMS) message.

3 is a block diagram of an originating mobile station 202 in accordance with an exemplary embodiment of the present invention. Transceiver 302, including transmitter 310 and receiver 312, exchanges wireless signals with base station 108 to exchange information, including voice, data, video, graphics, and audio. The processor 304 easily executes the various functions of the originating mobile station 202 and facilitates the full functionality of the mobile station 202. Processor 304 includes a microprocessor, a computer, or other processor device suitable for processing computer code to facilitate execution of the functions described herein. The processor 304 may include other circuitry such as analog to digital (AD) converters and audio processors in certain environments. Memory 306 is any memory module, integrated circuit (IC), or other device suitable for storing digital data, such as audio files representing voicemail messages and greeting messages. Input device 308 connected to processor 304 captures any combination of audio and video. In a typical embodiment, the input device 308 is a microphone and the voicemail message is an audio message. Examples of other suitable input devices 308 include video cameras and digital cameras. Greeting messages and other received communications are played through an output device 314, such as an audio speaker.

A status return message is received indicating that the call to the destination mobile station 204 has not completed at the current time. The multimedia information contained in the status return message is provided to the caller through an output device 314 such as visual displays and audio speakers. The processor converts the signals received by the input device 308 into a digital file representing the input signals to record the voicemail message. The file is stored at least temporarily in memory 304 before being included in the MMS message generated by processor 304. The message is sent by the transmitter 310 to the base station 108 to send an MMS message to the MMS-C 116.

4 is a flowchart illustrating a method of providing a voicemail service using a packet data messaging service such as an MMS in accordance with an exemplary embodiment of the present invention. The method is performed in the originating mobile device 202 in a typical embodiment, and is described in the context of an MMS system. Those skilled in the art will readily apply the techniques discussed in connection with other types of packet data messaging system based on these techniques.

In step 402, the originating mobile station 202 requests the presence status of the destination mobile station 204 by sending a presence status request message to the presence server 104. As described above, the presence server 104 may be a proxy of the destination mobile station 204 in any circumstances. In addition, the originating mobile station 202 may request status directly from the destination mobile station 204 in any circumstances. In some circumstances, the originating mobile station 202 may request a presence status when it begins to make a VoIP call with the destination mobile station 204. For example, the presence status request may be sent in addition to the "invite" message in accordance with SIP protocols. In such circumstances, the call attempt is interrupted when the presence status indicates that the destination mobile station 204 cannot receive calls at the current time.

In step 404, a status return message is received at the originating mobile station. In a typical embodiment, the presence server 104 generates a status return message in response to the presence status request message. In some circumstances, the destination mobile station proxy may provide a status return message. The status return message may describe the presence status of the destination mobile station 204 and may include a personal greeting describing the status of the destination party. The status return may include information in various formats. For example, the status return message may include multimedia information such as photographs, cartoons, videos, and / or text describing the called person's presence status. The status return message may be a value indicating presence status in accordance with a standardized status code protocol in certain circumstances.

At step 406, presence status information is provided to the caller. In a typical embodiment, a greeting message received as an audio file is played back to the sender. If the status return message includes other multimedia information such as cartoons, pictures, video clips or text, the multimedia information is displayed via appropriate outputs 414 such as speakers and visual displays.

In step 408, a voicemail message is recorded. In an exemplary embodiment, the voicemail message is an audio message recorded by the processor to the originating mobile station 202 by capturing the caller's voice through the microphone 308. However, the voicemail message can be any combination of audio, video, text, graphics or other multimedia information. Other devices, such as cameras, can be used to capture information about voicemail messages. The voicemail message is stored as a digital file in the memory 306 of the destination mobile station 202.

In step 410, the MMS message is generated by the originating mobile station 202. Using the destination address (IP routable address) of the destination mobile station 204, the originating mobile station 202 generates an MMS message and attaches a voicemail message file. In a typical embodiment, the IP address of the destination mobile station 204 used for the attempted VoIP call is used as the destination address. In a circuit switched network, the destination address is stored in a local database of memory 306 or received from voicemail server 104. For example, the destination address may be entered by the caller and associated with the telephone number of the destination device 204, 320. In the case where the voicemail server 104 provides a destination address, the message containing the destination address may be sent via a circuit switched call or may be sent to the destination mobile station 202 using MMS. If the destination device 302 does not subscribe to the MMS, the destination address is the destination address associated with the voicemail box of the destination device 302. In some situations, the voicemail message file may be formatted according to the CODEC of the destination mobile station 204.

At step 412, an MMS message comprising the voicemail message file is sent to the destination device 204, 302. The MMS message is sent to the MMS-C 116 in accordance with known techniques.

Thus, an exemplary embodiment uses MMS to efficiently provide voicemail services. Voicemail messages are attached and retrieved using MMS, which minimizes the durations of real-time calls in communication system 100. Voicemail messages attached by the wireless user are recorded at the originating mobile station 202 and sent over the MMS communication link as an MMS message. Voicemail messages retrieved by the wireless user are received at the destination mobile station 204 via an MMS communication link and stored in the memory of the destination mobile station 204. Using an MMS system maximizes the use of wireless communication resources for voicemail services. Because large latency can be tolerated in the transmission of MMS messages, voicemail messages have a lower QoS (Quality of Service) than required by either Rotating Switch Calls in circuit-switched networks or Virtual Rotating Switch calls in packet switched networks ) Can be efficiently transmitted at the level. In systems using VoIP, efficiency can be observed by using a spectrally efficient 3G high speed wireless link. The transmission may be scheduled to ease the load on the communication networks 102, 110 during busy traffic periods. In addition, the transmission of voicemail messages using MMS minimizes inaccuracies and errors during transmission and maximizes voice quality because the possibility of frame errors or transcoding is minimized or eliminated. In conventional systems, for example, voicemail messages may be sent by converting from wireless to PCM, from PCM to specific voicemail, from specific voicemail to PCM and from PCM to wireless formats during submission. Also, features may be implemented without propagation time during message generation. Moreover, voice messages can include multimedia components such as photos, graphics, and video clips.

Clearly, other embodiments and modifications of the present invention will be readily implemented by those skilled in the art. The foregoing description is illustrative and does not limit the invention. The invention is limited only by the following claims, which includes all embodiments described in connection with the foregoing description and the accompanying drawings and modifications thereof. Accordingly, the scope of the invention should not be determined with reference to the foregoing detailed description but instead with reference to the appended claims.

Claims (24)

A method performed in an outgoing mobile station, Receiving a status return message indicating that the destination device cannot receive a call because the presence status of the destination device is "not available"; Recording a voicemail message to the originating mobile station; And Sending a packet data message comprising the voicemail message from the originating mobile station to a packet data messaging service center. The method of claim 1, wherein said receiving comprises receiving the status return message from a presence server. 3. The method of claim 2, further comprising sending a presence status request message to the presence server, wherein the status return message is sent from the presence server in response to the presence status request message. 4. The system of claim 3, wherein the status request message is sent over a real time communication link, And the method further comprises tearing down the real time communication link before recording the voicemail message. 4. The method of claim 3, further comprising providing a sender with a greeting message sent by the presence server. The method of claim 1, wherein the packet data message is a multimedia messaging server (MMS) message and the packet data messaging service center is a multimedia messaging service center (MMS-C). 2. The method of claim 1, wherein the voicemail message comprises an audio message and the recording step comprises storing audio signals in a memory of the originating mobile station. 2. The method of claim 1, wherein the voicemail message comprises a video message, and wherein recording comprises storing video signals in a memory of the originating mobile station. The method of claim 1, further comprising generating the packet data message to include the voice message as an attachment. 10. The method of claim 9, wherein the destination apparatus is a destination mobile station. 11. The method of claim 10, further comprising generating the packet data message to include a destination address of the destination mobile station. 12. The method of claim 11, wherein the destination address is an email (email) address of the destination mobile station. The method of claim 12, wherein the email address has an Internet Protocol (IP) format. A receiver configured to receive a status return message indicating that the destination device cannot receive a call because the presence state of the destination device is “not available”; A processor configured to convert an input signal received through the input device into a digital file for recording a voicemail message, and generate a packet data message including the voicemail message; And a transmitter configured to transmit a packet data message containing the voicemail message from the originating mobile station to a packet data messaging service center. 15. The mobile station of claim 14, wherein the receiver is configured to receive the status return message from a presence server. 16. The mobile station of claim 15, wherein the transmitter is configured to send a presence status request message to the presence server, wherein the status return message is sent from the presence server in response to the presence status request message. 17. The system of claim 16, wherein the status request message is sent over a real time communication link, The processor is configured to partition the real-time communication link before recording the voicemail message. 15. The mobile station of claim 14, wherein the packet data message is a multimedia messaging service (MMS) message and the packet data messaging service center is a multimedia messaging service center (MMS-C). 15. The mobile station of claim 14, further comprising an output device configured to provide a greeting message sent by the presence server. 15. The method of claim 14, wherein the voicemail message comprises audio signals, And the mobile station further comprises a memory for storing audio signals. 15. The method of claim 14, wherein the voicemail message comprises video signals, And the mobile station further comprises a memory for storing video signals. 15. The mobile station of claim 14, wherein the packet data message includes an address of the destination device. 23. The mobile station of claim 22 wherein the destination address is an email (email) address of the destination mobile station. The mobile station of claim 23 wherein the email address has an Internet Protocol (IP) format.

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