Patent Application
20070250580
1. Field of the Invention
The present invention relates to telecommunications systems and, in particular, to an improved cellular telephone system.
2. Description of the Related Art
The cost of a conventional voice telephone call depends on many factors. Local calls within the same area code generally cost less than calls between different area codes. Calls between more remotely located area codes, regions, or countries can be still more expensive.
As a consequence, many individuals make use of cellular telephones for long distance calls. In such cases, users are charged on a per minute basis, regardless of the distance between called and calling parties. However, cellular service providers generally do not charge if the call is completely within their network. Thus, for example, if the calling and called parties' service is provided by Cingular, there is no charge for the call.
However, in such cases, there is no way for a caller to know which network the called party is on unless the caller has been told and remembers or has written down the information. As such, a typical caller cannot usually affirmatively take advantage of the cost savings provided.
These and other drawbacks in the prior art are overcome in large part by a system and method according to embodiments of the present invention. A telecommunication method in accordance with an embodiment of the present invention includes identifying called and calling parties' cellular telephone networks; creating a first call leg to a called party cellular telephone via a first gateway associated with the first cellular network; and creating a second call leg to a calling party cellular telephone via a second gateway associated with the second cellular network.
A telecommunications system in accordance with an embodiment of the present invention includes a personal computer having a unified communication system including a presence application and a cellular telephone network identifier operably coupled to the unified communication system and configured to identify a cellular telephone network of multiple parties; and a cellular network gateway appliance operably coupled to the personal computer and configured to allow the unified communication system to make a telephone call via an associated cellular network and identified by the cellular telephone network identifier. In some embodiments, the system further includes a second cellular gateway appliance that couples to the personal computer via the local area network and wherein the unified communication system is configured to call out to parties on via the local area network and first and second cellular gateway appliances
A telecommunications system in accordance with an embodiment of the present invention includes a network including a plurality of user devices having unified communications applications and a plurality of cellular network gateways; means interfaceable via the unified communications application for identifying a cellular network associated with a called party and a calling party; means for creating a first call leg to a called party cellular telephone via a first gateway associated with the first cellular network; means for creating a second call leg to a calling party cellular telephone via a second gateway associated with the second cellular network; and means for connecting the first leg and the second leg such that the called party and said calling party communicate via the network.
The present invention may be better understood, and its numerous objects, features, and advantages made apparent to those skilled in the art by referencing the accompanying drawings. The use of the same reference symbols in different drawings indicates similar or identical items.
Turning now to the drawings and, with particular attention to
First cellular telephone network 104 and second cellular telephone network 106 may be networks operated by different service providers or carriers, such as Sprint, Cingular, T-Mobil, Nextel, and Verizon. Furthermore, first cellular telephone network 104 and second cellular telephone network 106 may operate according to same or different telecommunications standards, such as GSM, CDMA, TDMA, AMPS, etc. The first cellular telephone network 104 and second cellular telephone network 106 may couple to or be in communication with the public switched telephone network (PSTN) (not shown).
In the example illustrated, the cellular telephones 110a-110d are compatible with one of the cellular networks 104, 106. In particular, in one embodiment, the cellular telephones 110a, 110b, 110d are served by network 104, and cellular telephone 110c is served by network 106.
In addition, an Instant Messaging system 111 is provided, in conjunction with server 102, and Instant Messaging clients 113a-113d. The Instant Messaging system may be implemented as an Instant Messaging system such as MSN Messenger, AOL Instant Messenger, those provided by Google or Yahoo, or enterprise IM systems. An exemplary enterprise presence and IM system is Microsoft Live Communication server, which can support Windows Messenger, Office Communicator, Communicator Web Access, and Communicator Mobile clients. Another is the IBM Sametime server that supports the Sametime Connect client.
The Instant Messaging system 111 may be implemented in an Instant Messaging server 102, which may be a conventional instant messaging server, but provided with a cellular network identification unit 112 in accordance with embodiments of the present invention. As will be explained in greater detail below, the cellular network identification unit 112 operates to receive cellular network associations from users and transmit indications or indicia of the associations to other users. It is noted that, while illustrated as implemented in a single server, the Instant Messaging system 111 and the cellular network identification unit 112 may be implemented in hardware and/or software operating on one or more servers, computer systems, host or mainframe computers, workstations, etc. It is further noted that, while illustrated as an instant messaging server, the server 102 may be any suitable server that makes use of presence information.
The computers 108a-108c may implement presence or instant messaging clients 113a-113c and cellular network identification control units 114a-114c for identifying the cellular networks of associated contacts, as will be explained in greater detail below. In some embodiments, an instant messaging client 113d may be implemented on a cell phone 110d, which may also implement a cellular network identification control unit 114d. Such a cellular telephone 110d may also implement an auto-dialer 116 which can be used to automatically dial a contact making use of a common cellular network, as will be explained in greater detail below.
More particularly, the cellular network identification control units 114a-114d operate in conjunction with the Instant Messaging client programs 113a-113d to provide display of the cellular networks associated with parties on buddy or contact lists maintained at the Instant Messaging client programs 113a-113d. In certain embodiments, the cellular network identification control units 114a-114d may be implemented as plug-ins to the Instant Messaging client programs 113a-113d. The Instant Messaging client programs 113a-113d can communicate over the Internet or other networks with each other and with the server 102 for example in a conventional manner, such as via a suitable TCP connection. It is noted that in certain embodiments, the clients 108a-108d communicate directly with one another; thus, the figure is exemplary only. The Instant Messaging client programs 113a-113d and the cellular control units 114a-114d may be implemented in hardware and/or software operating on one or more servers, computer systems, host or mainframe computers, workstations, etc.
In operation, as will be explained in greater detail below, a user of the Instant Messaging system 102 can upload a cellular network identification associated with his cellular telephone, for example, during self-configuration. The IM server 102 will then associate the network with the user on other parties' contact lists. When the contact lists are displayed at the respective Instant Messaging clients, the cellular network information for contact list members is provided, for example, as a graphical indication on a graphical user interface, such as a suitable icon, a background color, or other color-coded indication. In certain embodiments, a common display of multiple clients for a common cellular network may be used. For example, a given network may be assigned a particular color or indicia across multiple client devices; in other embodiments, the color or indicia is user configurable. The user can then decide whether the party is on his same network and make his call accordingly. In embodiments in which an Instant Messaging client is provided in the cellular telephone itself, the call can be made either automatically or manually.
Turning now to
The instant messaging control 111 is responsible for receiving, transmitting, routing, etc., text and control messages for instant messaging and control sessions. In addition, the instant messaging control 111 may include a presence control (not shown) for implementing presence capabilities. That is, the instant messaging control 111 can monitor, inter alia, the on line or available status of registered users, which can be displayed at the client(s).
The user-contact database 202 stores user information and user contact lists, as well as current contact status. The cellular network identification unit 112 operates in conjunction with the user-contact database 202 to receive cellular network identification associated with users and, particularly, parties on contact lists.
In operation, as will be explained in greater detail below, a user can upload a contact list of parties whose status he wants monitored, as well as the user's own cellular telephone network identification. This may be accomplished, for example, using standard IM control signaling channels, typically over a TCP connection. Then, when contact status is transmitted to the user by the IM control 111, the information can include other user's cellular networks.
More particularly, turning now to
An exemplary network identifier manager 304 for selecting the cellular network is shown in
This is shown more particularly in
In addition, in the example illustrated, using the dropdown 504, a first cellular network is assigned the color RED; a second cellular network is assigned the color GREEN; a third cellular network is assigned BLUE. When the individual contact is displayed, his name, or the background, can be shown in the particular color. This can provide an easy reference for the user. It is noted, however, that different indicia can be used, such as, for example, icons, text, etc.
An exemplary data element 600 that may be used to carry cellular network identification information is shown in
Turning now to
In a step 702, a user can log in to the IM server 102. This may be accomplished, for example, by the user opening his IM client 113a-113d, which may then automatically open a TCP connection to the server 102. In a step 704, the user's client 113 will provide identification, etc., for his account. In a step 706, the user can select his cellular network carrier, for example, by using the menu of
Turning now to
In a step 802, a user can log in for a chat session. Again, this can include the user opening his IM client 113, which can then communicate log in information to the server 102, as well as the user's current status. In a step 804, the user can send or update his contact list. Finally, in a step 806, the user can receive the status of his contacts including information on the cellular networks of the associated contacts.
It is noted that, in certain embodiments, the cellular telephone 110 may itself be provided with the capability of displaying a contact's cellular network affiliation. For example, certain cellular telephones may be provided with instant messaging or other messaging capabilities that involve use of contact lists and presence features.
An exemplary cellular, telephone 110d including cellular network display capabilities in accordance with an embodiment of the present invention is shown in
The control logic 902 interfaces to a memory 918 for storing, among other things, program controls and contact lists; and user interface(s) 910. The user interface(s) 910 can include a keypad 920, speaker 922, microphone 924, and display 926. The keypad 920 may include one or more “hard” keys and may be implemented in whole or in part as a cursor pointing device in association with one or more “virtual” keys on the display 926. It is noted that other interfaces, such as voice activated interfaces, may be provided. Thus, the figure is exemplary only.
As noted above, the control logic 902 may implement an IM control 113d, a cellular network identification control unit 114d, and an auto-dialer 116. The control logic 902 may be implemented as various combinations of hardware, software, or firmware and, in particular, may be implemented as one or more control processors. The IM client 113d and the cellular network identification control unit 114d may operate in a manner similar to that discussed above with the clients of personal computers 110a-110c.
In addition, the cellular network identification control unit 114d may be provided by the cell provider with routines to automatically identify when a number or other party is on the same network. Further, when a party is entered into a contact list, the user may be given the option of selecting that party's number on the common network as a default; then, the auto-dialer 116 can be used to always automatically call the contact at the cell number.
Turning now to
In a step 1002, a user can log in to the IM server 102 with his cellular telephone. This may be accomplished, for example, by the user opening his IM client 113d, which may then automatically open a TCP connection to the server 102. One method of conveying such information may include SIP methods over TCP using GPRS or EDGE data services.
In a step 1004, the user's client 113 will provide identification, etc., for his account, which can include his telephone number. In a step 1006, the user can elect his cellular network carrier, for example, by using a menu similar to that of
Turning now to
In a step 1102, a user can log in for a chat session. Again, this can include the user opening his IM client 113, which can then communicate log in information to the server 102. In a step 1104, the user can send or update his contact list, and current presence status. In a step 1106, the user can receive the status of his contacts including information on the cellular networks of the associated contacts. In a step 1108, the user can select a contact, for example, by highlighting the entry using his cursor pointing device. Then, in a step 1110, the auto-dialer 116 can automatically call the party at the previously entered default cellular network number.
Turning now to
Shown at 1202 is exemplary signaling for configuring the IM server 102 with cell network information. Shown at 1204 is signaling for receiving cell phone information.
In 1206a, IM client 150 can log in to server 102. As noted above, this can include the client opening a TCP connection with the server 102, etc. The IM client 152 can similarly log in at 1206b. The clients can upload their personal, contact list, and cellular telephone information at 1208a, 1208b. The server 102 can then process the received information, for example, correlating and storing contact lists and cellular network information in the various databases. At 1210a, 1210b, the IM clients 150, 152 can log out. As discussed above, in embodiments in which the IM client is on a cell phone, the user can also elect that network as his default contact for other parties.
At 1212, a user, such as a user of client 150, can log in to the server 102 for a chat session. At 1214, the server 102 can download to the client the contact information and cellular network identification of parties on his contact list. Finally, at 1216, the user can call the other party using the appropriate cell network. As discussed above, in embodiments in which the cellular network identification control unit is on the cellular telephone, the cellular telephone's auto-dialer may be used to make the call.
In addition to the above-described embodiments, the present invention is also capable of being implemented as part of a network-based system, such as a unified presence or communications system. Turning now to the drawings and, with particular attention to
User devices, such as user devices 1312, 1314 may be connected to or in communication with the presence service 1301 and the messaging service 1306. In certain embodiments, the user devices may be implemented as telephones, cellular telephones, PDAs, computers, etc. For example, a user device 1312, 1314 may be embodied as personal computers implementing the Windows XP operating system and, as discussed above, IM clients such as the Windows Messenger or Office Communicator instant messenger clients. In addition, the user devices 1312, 1314 may include telephony and other multimedia messaging capability using, for example, peripheral cameras, Webcams, microphones, and speakers (not shown) or peripheral telephony handsets, such as the Optipoint handset available from Siemens Information and Communication Networks, Inc.
In certain embodiments, the system 1300 may also include other hardware and/or software components (e.g., gateways, proxy servers, registration server, presence servers, redirect servers, databases, applications, etc.) such as, for example, hardware and software used to support a SIP (Session Initiation Protocol) or other protocol based infrastructure for the system 1300 and allow the registration of SIP devices in the system 1300.
The context agent 1304 may monitor the identity context of one or more identities or the device context of one or more devices. The context agent 1304 may provide or include an application interface that supports identity context, device context, device presence, and/or other functions. Applications may monitor, access, and/or query the context agent 1304 for identity context and/or device context information. The context agent 1304 may be implemented in hardware and/or software operating on one or more servers, computer systems, host or mainframe computers, workstations, etc. In some embodiments, the context agent 1304 may be operating on some or all of the same devices as other components in the system 1300.
The PAS 1302 may be or include an application that monitors the presence and availability of devices. That is, the PAS 1302 monitors the device context of one or more devices. In some embodiments, one or more of the devices may be associated with identities whose context may be used or monitored by one or more context oriented applications. The PAS 1302 may be implemented in hardware and/or software operating on one or more servers, computer systems, host or mainframe computers, workstations, etc. In some embodiments, the PAS 1302 may be operating on some or all of the same devices as other components in the system 100.
In some embodiments, the PAS 1302 may be or include an application that communicates with or is connected to one or more registered devices (e.g., devices 1312, 1314) that allows devices to register with the system 100 or helps to facilitate their registration. For example, in a SIP environment, the devices 1312, 1314 may be registered with the system 100 and may show up or be described in registration databases as being assigned to particular identities. The context agent 1304 may register with the PAS 1302 and receive device context and/or information from the PAS 1302 regarding the devices 1312, 1314. In some embodiments, the PAS 1302 may provide context information to applications upon request, periodically or in accordance with some other plan or procedure.
The PAS 1302 may also couple to or be in communication with, a cellular network identification unit 1308 that receives cellular network information from subscribers, in a manner similar to that discussed above. It may then be provided to the context agent 1304 for transmission to user devices and applications.
In certain embodiments of the present invention, one or more of the components of the system 1300 may be connected to or in communication with each other via a communication network. For example, turning now to
Turning now to
As will be explained in greater detail below, the server 1510 may maintain a database of user preferences and cellular networks. The client devices may be embodied as user client portals including a telephony application 1512 and may be operable to select a called party and set calling party device preferences. Thus, the client device may include a presence client (not shown) interfaced to cellular network identification control units 1520a, 1520b, similar to those discussed above. In operation, in certain embodiments, the server 1510 can call out by using the appropriate cellular network appliance, which operates as a cellular device. The connection is then deemed by the cellular network to be of devices on the same network and there will therefore be no charge. In other embodiments, the server 1510 can be instructed to call out via a first call leg to a called party and call out via a second call leg to the calling party if they are on the same cellular network (using standard telephony gateways (not shown)), and then connect or transfer the calls.
More particularly, according to a first embodiment of the present invention, a user may be associated with a network client device 1514 and a cellular telephone 1519. The user may use his client device 1514 to program his cellular network preference to the server 1510, in a manner similar to that discussed above. When the user wishes to make a phone call to the cellular user 1515, he has at his disposal the cellular network information. He can then use his cell phone 1519 to make the call free of charge.
Alternatively, he can activate his client application 1512 on his client device 1514 (and, in particular, his telephony application) to cause the server 1510 to call out to a cellular telephone 1515 over the LAN via gateway appliance 1520a at 1521. (He could also call out to a cellular telephone on network 1506 over the LAN via gateway 1520b). He can then communicate using his client device telephony application 1512, again free.
In other embodiments, he can activate his client application 1512 on his client device 1514 (and, in particular, his telephony application) to cause the server 1510 to call out to his cellular telephone 1519 via gateway appliance 1520a, at 1523, and also call out to the cellular telephone of a user of another network, such as cellular telephone 1517 via gateway appliance 1520b, at 1525, and connect or redirect the call at 1527.
That is, when the user selects calling a cell phone party using his client 1514, the server 1510 will check which cell network the user and called party use. The server 1510 will then call out to the called party using the appropriate cellular interface, and call out to the user using his cellular interface. The server 1510 will then connect the calls over the LAN 1508 via the cellular gateway appliances or interfaces. To each cellular network, it appears as if the user and the called party make use of the common network and thus are not charged for the call.
Turning now to
As will be discussed in greater detail below, in certain embodiments, the cellular gateway appliance 1520 functions to receive VoIP telephony commands and media streams from the LAN (
In particular, as shown in
A selector 1610 may be used to select which of the cellular interfaces is to be used. In certain embodiments, the selector 1610 merely provides a serial routing of the call to a next available cellular interface. In this case, each of the interfaces may be provided with its own telephone number, and any identification comes from “system,” i.e., a predefined name associated with the number of the interface.
In other embodiments, the selector 1610 may also provide individual identification such that while the call can be routed over any of the cellular interfaces 1604, the calling party can be identified, over the cellular network. This may, for example, be used by reading the SIP INVITE command from the LAN, extracting the “From” (or P-Asserted-Identity or other field) and using this information populate the originating party identification field(s) in the cellular network.
The cellular interfaces may allow for both voice and data transmission on the cellular network and may include a master control unit (MCU) 1612 and digital signal processor (DSP) 1614, which performs any necessary filtering and encoding, and the like. The voice signals are then provided to the RF front end unit 1616, which perform RF modulation functions, and then transmitted to the network. Similarly, in the downlink direction, signals are received and demodulated in the RF front end unit 1616. The signals are then received at the DSP 1614, filtered and decoded, then converted using transcoder 1610, and then out the SIP interface 1606.
Exemplary cellular network standards include IS-136 TDMA and GSM. Others, however, may be implemented without departing from the scope of the present invention. It is noted that, in other embodiments, a single RF unit may be shared by multiple cellular telephone interfaces. In still others, the cellular interfaces may be implemented as plural GSM SIM cards. Suitable GSM interface modules are available from Siemens Corporation.
Turning now to
In a step 1702, the user can use his client portal 1512 to select or dial the called party. In a step 1704, the server 1510 can identify the called party. In a step 1706, the server 1510 can receive the resulting call setup request and can identify the called party's cellular network (cell network information can be provided in a manner similar to that discussed above). In a step 1708, the server 1510 calls the called party via the cellular device 1520a, 1520b corresponding to the appropriate network. For example, the server 1510 can set up a SIP call to the cellular appliance 1520, which functions as a SIP device gateway. The cellular device 1520 then calls out to the called party cellular telephone on the cell network. In a step 1710, the server 1510 calls out to the calling party cellular telephone via the appropriate cellular interface. Again, this may be a SIP call to the gateway appliance. It is noted that the order of calling can be reversed: that is, the calling party could be called first. In a step 1712, the appliances 1520 connect to the respective called and calling party telephones. Finally, in a step 1714, the server 1510 connects the calls by routing the media across the LAN between the two gateway appliances 1520a, 1520b.
Turning now to
In a step 1752, a user can employ his client interface 1512 to select or dial a called party. In a step 1754, the server 1510 identifies the called party by accessing the appropriate database. In a step 1756, the server 1510 identifies the cellular network of the called party (again, this information may be provided in a manner similar to that discussed above). In a step 1758, the server 1510 selects the appropriate gateway appliance 1520. Finally, in a step 1760, the server 1510 calls out to the called party cell phone via the gateway appliance, and connects to the calling user. Again, this can include the server 1510 setting up a SIP call to the appropriate gateway appliance, which then performs any necessary transcoding, etc., for calling out on the cellular network.
Turning now to
At 1801, a user can use his telephony application/portal 1512 (
At 1803, the user can use his cell phone for a conversation with a user on another cellular network. At 1812, a user can use his client portal 1512 to select a called party for calling. This information is transmitted to the server 1510, for example, using the SIP INVITE command. At 1814, the server 1510 identifies the called party and the preferred cellular network or networks of the calling party. At 1816, the server directs the appropriate cellular appliances to call out to the called party and the calling party cell phones. Again, this may be done via the appropriate SIP INVITE command. At 1818, the cellular gateways 1520a, 1520b call out to the appropriate cell phones. At 1820a, b, the server 1510 connects the call, for example, by directing one or more of the gateway appliances 1520a, 1520b to redirect the calls. The call is then connected at 1822 via the gateways.
An alternate network configuration for an embodiment of the present invention is shown in
The personal computer 1928 may include a unified messaging system having an Instant Messaging or presence client 1936, a cellular network identification control unit 1934, and a telephony client 1938 in accordance with the present invention. The personal computer 1938 is generally similar to the personal computer(s) described above. In the embodiment illustrated, the computer 1938 couples to the Internet (and hence IM server 1951 via an interface 1930, such as an RJ-11 interface). In other embodiments, the connection to the Internet may be via the cellular network. In addition, in the embodiment illustrated, the personal computer 1928 may couple to the cellular gateway appliance 1920 via USB interfaces 1932, 1926. It is noted that in other embodiments, other interfaces, such as wireless interfaces, may likewise be employed.
In addition, the cellular gateway appliance in the embodiment illustrated can support calls from analog telephone 1952 via link 1924. That is, in operation, not only can users of the personal computer 1928 make calls via the cellular network, but also users of the analog telephone 1952. The gateway appliance may also include an interface to the PSTN as well as to the cellular network.
More particularly, turning now to
In the example illustrated, the cellular gateway appliance 2000 includes network interfaces 2002, coding control 2008, cellular interface 2010, and RF unit 2016.
The network interfaces 2002 may include one or more RJ-11 interfaces 2004a, 2004b, and USB interfaces 2006a, 2006b, as well as necessary support hardware (not shown). Typically, the RJ-11 interfaces couple to the telephones 1952 and PSTN (and provide, e.g., suitable tip-ring connections) and the USB interfaces couple to the personal computers. The coding/transcoding block 2008 provides any necessary D/A and A/D conversions, as well as coding and transcoding. The cellular interface 2010 can include a master control unit 2012 as well as DSP 2014 for any other needed functions, similar to those of
Turning now to
In a step 2102, the user can select the called party using his PC interface client. In a step 2104, the server 1951 can identify the called party and his cell network. (In other embodiments, the PC itself can identify the called party cell network). In a step 2106, the system determines if the called party is a cell phone on the same network. If not, then the call can be made through the POTS (e.g., if the call is local) or via the cell network, at 2110. In other embodiments, the call may be automatically routed through the cell network.
Turning now to
In a step 2152, a user can take a conventional telephone 1952 off hook. The cell network gateway appliance 1920 will detect this and provide a dial tone. In a step 2154, the user can dial the called party via the conventional telephone 1952. In 2156, the DTMF tones inputted are received and detected at the gateway appliance 1920. At a step 2156, the gateway appliance 1920 converts the received DTMF tones to cellular network signaling and dials on the cellular network in a step 2160. In a step 2162, the connection is completed to the cellular network.
Now referring to
The computer 2200 may include a processor, microchip, central processing unit, or computer 2202 that is in communication with or otherwise uses or includes one or more communication ports or network interfaces 2204 for communicating with user devices and/or other devices. The communication ports 2204 may include such things as local area network adapters, wireless communication devices, Bluetooth technology, cellular network interfaces, etc. The computer 2200 also may include an internal clock element 2206 to maintain an accurate time and date for the computer 2200, create time stamps for communications received or sent by the computer 2200, etc.
If desired, the computer 2200 may include one or more output devices 2208 such as a printer, infrared or other transmitter, antenna, audio speaker, display screen or monitor, text to speech converter, etc., as well as one or more input devices 2210 such as a bar code reader or other optical scanner, infrared or other receiver, antenna, magnetic stripe reader, image scanner, roller ball, touch pad, joystick, touch screen, microphone, computer keyboard, computer mouse, etc.
In addition to the above, the computer 2200 may include a memory or data storage device 2212 to store information, software, databases, documents, communications, device drivers, etc. The memory or data storage device 2212 may be implemented as an appropriate combination of magnetic, optical and/or semiconductor memory, and may include, for example, Read-Only Memory (ROM), Random Access Memory (RAM), a tape drive, flash memory, a floppy disk drive, a Zip™ disk drive, a compact disc and/or a hard disk. Thus, the storage device 2212 may include various combinations of moveable and fixed storage. The computer 2200 also may include memory 2214, such as ROM 2222 and RAM 2218.
The processor 2202 and the data storage device 2212 in the computer 2200 each may be, for example: (i) located entirely within a single computer or other computing device; or (ii) connected to each other by a remote communication medium, such as a serial port cable, telephone line or radio frequency transceiver. In one embodiment, the computer 2200 may be implemented as one or more computers that are connected to a remote server computer, as will be explained in greater detail below.
A conventional personal computer or workstation with sufficient memory and processing capability may be used as the computer 2200. The computer 2200 may be capable of high volume transaction processing, performing a significant number of mathematical calculations in processing communications and database searches. A Pentium™ microprocessor such as the Pentium III™ or IV™ microprocessor, manufactured by Intel Corporation may be used for the processor 2202. Other suitable processors may be available from Motorola, Inc., AMD, or Sun Microsystems, Inc. The processor 2202 also may be embodied as one or more microprocessors, computers, computer systems, etc.
Software may be resident and operating or operational on the computer 2200. The software may be stored on the data storage device 2212 and may include a control program 2222. In the client devices, the control program 2222 may include the IM clients and cellular network identification control units. In the server, the control program 2222 can include the PAS, context agent, text messaging service, and the cellular network identification unit.
The client control program 2222 may control the processor 2202. The processor 2202 may perform instructions of the client control program 2222, and thereby operate in accordance with the methods described in detail herein. The client control program 2222 may be stored in a compressed, uncompiled and/or encrypted format. The client control program 2222 furthermore may include program elements that may be necessary, such as an operating system, a database management system and device drivers for allowing the processor 2202 to interface with peripheral devices, databases, etc. Appropriate program elements are known to those skilled in the art, and need not be described in detail herein.
The computer 2200 also may include or store user information regarding identities, user devices, contexts, presence information, communications, etc. These may include, for example, default messages, etc. Information regarding other application program data may be stored in application databases (not shown)
According to some embodiments, the instructions of the control program may be read into a main memory from another computer-readable medium, such as from the ROM 2216 to the RAM 2218. Execution of sequences of the instructions in the control program causes the processor 2202 to perform the process elements described herein. In alternative embodiments, hard-wired circuitry may be used in place of, or in combination with, software instructions for implementation of some or all of the methods described herein. Thus, embodiments are not limited to any specific combination of hardware and software.
The processor 2202, communication ports 2204, clock 2206, output device 2208, input device 2210, data storage device 2212, ROM 2216 and RAM 2218 may communicate or be connected directly or indirectly in a variety of ways. For example, the processor 2202, communication ports 2204, clock 2206, output device 2208, input device 2210, data storage device 2212, ROM 2216 and RAM 2218 may be connected via a bus 2234.
While specific implementations and hardware/software configurations for the computer 2200 have been illustrated, it should be noted that other implementations and hardware configurations are possible and that no specific implementation or hardware/software configuration is needed. Thus, not all of the components illustrated in
The methods described herein may be embodied as a computer program developed using an object oriented language that allows the modeling of complex systems with modular objects to create abstractions that are representative of real world, physical objects and their interrelationships. However, it would be understood by one of ordinary skill in the art that the invention as described herein could be implemented in many different ways using a wide range of programming techniques as well as general-purpose hardware systems or dedicated controllers. In addition, in some embodiments, many, if not all, of the elements for the methods described above are optional or can be combined or performed in one or more alternative orders or sequences and the claims should not be construed as being limited to any particular order or sequence, unless specifically indicated.
Each of the methods described above can be performed on a single computer, computer system, microprocessor, etc. In addition, in some embodiments, two or more of the elements in each of the methods described above could be performed on two or more different computers, computer systems, microprocessors, etc., some or all of which may be locally or remotely configured. The methods can be implemented in any sort or implementation of computer software, program, sets of instructions, programming means, code, ASIC, or specially designed chips, logic gates, or other hardware structured to directly effect or implement such software, programs, sets of instructions, programming means or code. The computer software, program, sets of instructions or code can be storable, writeable, or savable on any computer usable or readable media or other program storage device or media such as a floppy or other magnetic or optical disk, magnetic or optical tape, CD-ROM, DVD, punch cards, paper tape, hard disk drive, Zip™ disk, flash or optical memory card, microprocessor, solid state memory device, RAM, EPROM, or ROM.
The foregoing description of the invention has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed, and modifications and variations are possible in light of the above teachings or may be acquired from practice of the invention. The drawings and description were chosen in order to explain the principles of the invention and its practical application. The drawings are not necessarily to scale and illustrate the device in schematic block format. It is intended that the scope of the invention be defined by the claims appended hereto, and their equivalents.
The present application is related to commonly-assigned, co-pending application Ser. No. ______ (Atty Docket: 2005P20414US), entitled METHOD AND APPARATUS FOR PRESENCE INDICATION OF CELLULAR TELEPHONES, filed concurrently herewith.
