WO2008103633A1

WO2008103633A1 - Unstructured supplementary services data application within a wireless network

Info

Publication number: WO2008103633A1
Application number: PCT/US2008/054227
Authority: WO
Inventors: Dorron Mottes
Original assignee: Vascode Technologies Ltd.; Myers Wolin, Llc
Priority date: 2007-02-19
Filing date: 2008-02-19
Publication date: 2008-08-28
Also published as: IL200094A; EP2113156A4; EP2113156B1; EP2113156A1; CN101663901A; CN101663901B; IL200094A0

Abstract

A method for handling a call communication session via a communication address associated with a network using Unstructured Supplementary Service Data ('USSD') protocol. USSD messages are used between the wireless network subscriber and a wireless network to provide the subscriber with information about the caller, and routing options of the call. The subscriber can also inform the wireless network using USSD messages how to proceed with the call. USSD messages such as, but not limited to, transferring the call to another subscriber with canned messages, transferring the call to a subscriber's voice mail, establishing a conference call, swapping to another call, creating new call, consulting with another person, transferring to a specific predefined person, hold, consulting with another person via canned message, etc. Another method includes exchanging the device status information using USSD messages.

Description

Unstructured Supplementary Services Data Application within a Wireless Network

This application claims priority from US provisional patent application number 60/890,542, filed on 19, February 2007, and which is hereby included by reference for all that it contains.

Technical Field

[001] The invention generally relates to wireless exchanges, and more specifically to wireless telephone exchanges using USSD (Unstructured Supplementary Services Data) as a data communication channel.

Background of the Invention

[002] Calls sent to wireless subscribers lack important information about the callers, calls and tasks related to the call. When a call is received by a subscriber, the subscriber usually needs to converse with the caller before the caller can be forwarded to another destination. During the call if information about the caller is displayed in the device, the display may be lost because of subscriber actions and the original display may not be recovered. Also calls forwarded to another party may lose the information about the caller in the new destination device. When conference calls are to be established, the called party may have information about the original caller only after a voice path is created.

Summary of the Invention

[003] In view of the above mentioned deficiencies of the prior art certain aspects of the present invention allow parties receiving incoming calls such as operators, secretaries, employees, conference calls establishment, to obtain information about the caller, call, tasks related to the call or other information before and during voice path establishment. Other aspects will also automatically provide the status of device availability to another device.

[004] An exemplary embodiment provides a method for call control. The method includes sending a first message using a USSD protocol to a first device; receiving a first response message using a USSD protocol from the first device responsive of the first message; and, exchanging messages using a USSD protocol between a call control manager and the first VASC 636wo

device, or between a first device and a second device, the messages containing selection lists including a plurality of call options sent to the first device from the call control manager and responses thereof received from the first device.

Brief Description of the Drawings

[005] FIG. 1 is a schematic view of a system configured in accordance with a preferred embodiment of the invention. [006] FIG. 2 is a block diagram illustrating an implementation method of Device status information by using a USSD interface. [007] FIG. 3 is a block diagram illustrating an implementation method of USSD call origination; [008] FIG. 4 is a block diagram illustrating an implementation method of USSD call rejection/forwarding by a CCI subscriber. [009] FIG. 5 is a block diagram illustrating an implementation method of interaction capabilities between a CCI subscriber and CCI subsystem. [0010] FIG. 6 is an exemplary call flow of a subscriber receiving a USSD message to process calls due to a number of calls waiting to be processed exceeded a threshold. [0011] FIG. 7 is an exemplary call flow of a CCI subscriber "barge in." [0012] FIG. 8 is an exemplary call flow of caller information in an incoming call.

Detailed Description of the Invention

[0013] This disclosure describes the best mode or modes of practicing the invention as presently contemplated. It is important to note that these embodiments are only examples to advise one of ordinary skill in the art of the many advantageous uses of the innovative teachings herein. In general, statements made in the specification of the present application do not necessarily limit any of the various claimed inventions. Moreover, some statements may apply to some inventive features but not to others. In general, unless otherwise indicated, singular elements may be in plural and vice versa with no loss of generality. In the various views of the drawings, like reference characters designate like or similar parts. The present invention will be understood and appreciated more fully from the following non-limiting detailed description.

[0014] According to an embodiment of the disclosed invention, mobile stations and network devices exchange messages for call control and information exchange using messages in accordance with the Unstructured Supplementary Service Data (USSD) VASC 636wo

protocol. Typically, a device may send a specific call control request over the network as a USSD request to another device, which returns a response as a USSD response. For example, this response may contain a list of possible call control selections, options or actions that the device may take. The response may be resent by the responding device. Devices may also receive information via USSD notifications from other devices on the network.

[0015] In an exemplary USSD message, a subscriber receives a USSD message with the call control status (i.e., in-call, idle, etc.) of another subscriber. This data is sent independently, or as part of any of the relevant call control interaction messages i.e. if a subscriber is incall and a current USSD message is the incall message, the CCI subsystem sends a new incall USSD message which includes the state change of the other subscriber and the incall call control interactions options (can be same interactions or new list of options). The other subscriber call control updates can be received at all times or can be restricted to certain times, such as time of the day, state of incall subscriber.

[0016] In another exemplary embodiment, the method further includes associating a message with the call being rerouted for display at a mobile station. Preferably, the message is transmitted to the mobile station by using USSD.

[0017] In another exemplary USSD message, a subscriber receives a USSD message with details of all calls waiting in a queue (the subscriber's own queue or any other subscriber queue). Each time there is a change in the queue a new USSD message is sent to the subscriber. A subscriber receives the above message only if a defined threshold of a number of calls in the queue has been reached.

[0018] In another exemplary USSD message, a subscriber receives a USSD message with a list of numbers or names of employees. The subscriber then selects from the list a destination target, in which the subscriber can barge in to a call or silently monitor the selected destination.

[0019] In another exemplary USSD message, a subscriber receives a USSD message with the name of the caller and/or their title in the company, for example, "Joe Cohen, VP Marketing Acme Ltd. is calling." The name of a caller can be stored in a CCI database or any integrated database.

[0020] In addition or in the alternative, the method further includes diverting a call received at a mobile terminal to another station associated with a private network, which can be another mobile terminal, a PC, a wireline telephone, etc. VASC 636wo

[0021 ] Preferably, this diversion of a call is made in response to a request initiated by the mobile station user, e.g. by using a pre-defined key associated with that mobile station. Still preferably, a message may be associated with the diverted call, and may be generated in response to a pre-define code sent from the mobile station. The message may be either a visual message (such as USSD message, etc.) or a voice message, depending on the type of device to which the call has been diverted. Thus, while the end user gets an indication of the arriving call (e.g. ringing) he/she can select to divert the call to a third party (e.g. a secretary), and select a notification, which will be presented at the secretary's station (e.g. "please take a message," "I am busy, will call them later," "get rid of them," etc.)

[0022] Local option - The transfer can be requested by the mobile station and executed by a switch associated with the private network. In which case, notifications will be stored locally, but there will be a need to synchronize them with the cellular network operation.

[0023] Network option - the mobile station sends a message the to a communication device according to the principles of the invention (the Call Control Interaction, CCI subsystem) and that device takes control of the transfer request, manages the process, while instructions such as re-routing schemes etc., are stored at the network's center and are assigned by the CCI subsystem, e.g. to the transfer destination.

[0024] The message would be sent to the receiving client via USSD. The data sent in such a message is typically data regarding the call information such as ANI, DNIS (called number by number, but can be by done by name, too, if the system of the invention can match it with its own database), in order to enable the receiving phone to generate the right message.

[0025] Preferably, the receiving party may view the message and then select from a list of several options, the preferred way of handling the call (e.g. divert the call to secretary, send to voice mailbox, transfer to someone else such as the boss, etc.)

[0026] In accordance with another embodiment of the invention, the method further includes providing a pre-defined auto reply to a calling party in response to a call received at the mobile station. Such as a pre-defined auto reply USSD message. Therefore, the end user may define his line to send such an auto reply to the calling party, providing the latter by using a USSD message with any details desired such as "I am out of my office," "will return on ," "will have limited access to my voice mailbox," etc.

[0027] Certain embodiments enable a user to change between various pre-defined presence scenarios. The presence scenarios and routing instruction are stored in the cellular network center, and preferably each presence scenario will be associated with suitable operative instructions, for example: in an "in meeting" scenario a caller will receive a USSD message VASC 636wo

with such details. Once the mobile station user changes the scenario, a message is sent to CCI subsystem, which will handle incoming calls based on the predefined message table.

[0028] According to yet another embodiment, selected subscribers may get an indication via a USSD message as to the whereabouts of other group members, e.g. a secretary may get an indication as to whether the boss is presenting call or idle, support manager can view all support employees presence, while support employees will be prevented from viewing each other or their boss' presence.

[0029] In addition or in the alternative, the enterprise management administrator or end user may configure and define personalized interaction messages based on the called state. In addition, a definition may include receiving USSD interaction messages only while in call (i.e. do not want to receive interaction USSD messages while call ringing).

[0030] Turning to Fig. 1, which illustrates a wireless network 2 operative in accordance with certain embodiments of the present invention. The network comprises basic elements such as other wireless networks; base station controller ("BSC") 5, mobile switching center ("MSC") 14, HLR 12, BTS 8 and the operator's management system 6, as well as a plurality of mobile stations, 10. The mobile stations include, but are not limited to, cellular phones such as cellular phones 10 and 10', personal digital assistants, smart phones, and wireless network devices. In addition, the network described herein further comprises a Call Control Interaction subsystem ("CCI") 7 constructed in accordance one or more of the embodiments of the present invention.

[0031] For the sake of this example, its assumed that all cellular phones designated in this Fig. 1 with numeral 10, belong to users that are associated with company A which is a subscriber of the CCI service.

[0032] USSD GW 16, can either be an internal part of the CCI subsystem 7, or, be a part of the mobile operator's network. The CCI subsystem communicates with USSD GW 7, requesting it to send specific USSD messages to subscribers 10. The USSD GW 7 receives interaction requests and reply messages from subscribers 10 and forwards the messages to the CCI subsystem.

[0033] A WEB management administration can be accessed by users 10 via PC 20, mobile device or any other capable device via a web server 18 to personalize the call control interaction message. Users such as subscribers 10, company administrators, mobile operator employees, can personalize subscribers USSD messages and other parameters, such as receive other subscriber call status between 09:00 to 17:00. The users can personalize the VASC 636wo

USSD message to include options such as to transfer to a specific named subscriber with a canned message, and define personal canned messages.

[0034] The network described herein can also comprise a Centrex®-like (hereinafter referred to for convenience as Centrex) device ("WX") constructed in accordance one or more of the embodiments of the present invention. In this case the CCI 7 can be part of a WX system as described in PCT patent application WO2006056983 entitled "Method and Device for Routing Communications in Cellular Communications Network" assigned to common assignee and which is hereby incorporated by reference for all the useful information it contains.

[0035] Figure 2 Illustrates a device status indication using the USSD protocol. In this exemplary message flow, an attendant embodied in a device 10, receives a status of another device 10 within a group visible to or associated with the attendant. A device whose status is checked, may be, but is not limited to, the attendant's supervisor cellular phone 10. The USSD message informs, for example, to the attendant device 10 the type of availability of the supervisor device 10, for example to receive calls, messages, and the likes on the respective device. The attendant device may display a physical indication, e.g., a light indication, a virtual indication, or a text indicating the supervisor's device status. The attendant can request at any time the status of the supervisor device 10. A person skilled- in- the-art would readily realize that other forms of communication can be transferred in the same manner. Communication such as providing a busy signal to an attendant's device 10, when supervisor's device 10 is in use. It should be further noted that the notation of a supervisor's device 10 is provided for reference purposes only and any one of the devices 10 may be correlated to the attendant's device 10 to provide the benefits of the disclosed invention.

[0036] In addition to status information, data information and control information can also be communicated between devices. Data information can be USSD messages sent from a device to a group of devices with information such as meeting information, routing location maps and so on. Control information can be USSD messages to a device instructing the device on how to present data sent to the device such as text layout, volume from the sending device and so on.

[0037] Specifically, Fig. 2 shows an information message sent by the CCI subsystem 7 to the attendant device 10 (step 210). The USSD message is generated, either automatically or manually, each time the availability of the supervisor device 10 changes. A status change in supervisor device 10 may occur when a call is disconnected, a call originates, out of range, VASC 636wo

"do not disturb" mode, and the likes. A status change may also occur automatically based on time of day, day of the week, day of the year, predefined holidays, and others. The USSD message can include additional options consisting of, but not limited to, options such as call control interaction, calling number and so on. The information message is received at the attendant device 10 (step 220) and the status from the message is displayed on or by the attendant's device 10. If the USSD message indicates that the supervisor device 10 is busy (step 230) then calls, messages, or other communications, are not transferred to the respective device (step 240) from the attendant device 10; otherwise, calls, messages, or other communications, are transferred to the supervisor device 10 (step 250) from the attendant device 10. Partial blocks of calls, messages, or other communication can be requested. A partial block will block all requests to the supervisor except for a few requests allowed to be transferred by the attendant. Those allowed are on a list displayed on the attendant screen. A virtual or physical indication, or a text at the attendant device 10, can be displayed indicating the supervisor's device 10 status.

[0038] During the exemplary message flow, the supervisor's device status may change while the attendant is responding to a call. In this example a new USSD message is re-sent to the attendant while the attendant is incall, notifying the attendant of the modified state, this USSD message can include additional options consisting of, but not limited to, options such as call control interaction options of the attendant's current state, calling number and so on.

[0039] Figure 3 illustrates the processing of an incoming call with information provided on the CCI subscriber device 10 about the originating caller, called number, and information about the CCI subscriber's call handling options and selections.

[0040] Caller originates a call to a CCI subscriber 10. The mobile operator's MSC 14 receives the call, and because the destination is a CCI subscriber 10, the MSC 14 passes call details to CCI subsystem 7. The CCI subsystem 7 receives the information regarding the new call and looks up the data related to the called number and identifies the CCI subscriber 10.

[0041] The CCI subsystem 7 then alert the CCI subscriber 10 with an incoming call message (step 310). CCI subsystem 7 sends a USSD message (step 315) to CCI subscriber 10 with the call control options of the ringing state. The options can be the same to all CCI subscribers 10 or can be customized per CCI subscriber 10, the options may be further different if CCI subscriber 10 is idle and a new call is ringing or in a similar case were the subscriber 10 is in call and receives a new call (call waiting). The CCI subscriber 10 has the VASC 636wo

option of changing the exact USSD message received at each state of the call such as the listed options of the message. The CCI subscriber 10 can define, for example via a web interface, if and how to receive call control messages while the ring-tone is received. In one embodiment of the disclosed invention the CCI subscriber 10 will have to manually accept the USSD session and then receive the USSD message, however, embodiments that automatically accept the USSD sessions are specifically included in the scope of the disclosed invention.

[0042] Call control manager sends the USSD messages to the CCI subscriber 10 and interacts with the CCI subsystem 7. CCI subsystem 7 interacts with the call control manager providing the call control manager with the information of which CCI subscriber 10 to set up the USSD session with, and what USSD message to send to the CCI subscriber 10. Call control manager also receives information from CCI subscriber 10 such as: CCI subscriber 10 from session ID "x" sent an answer. The USSD forwards the message to the CCI subsystem 7. The CCI subsystem 7 maintains call control parameters such as timers and messages associated with USSD interface protocol and CCI subscriber 10. It should be noted that the CCI subscriber 10 can request information from CCI subsystem 7 during any state of the call by initiating USSD messages in accordance with the disclosed invention.

[0043] Once the request to the CCI subsystem 7 is sent, the CCI subscriber 10 can wait for the CCI subsystem 7 to provide the caller information and response options before proceeding with the call (step 315).

[0044] Once the USSD message is received by the CCI subscriber 10 (step 315), the CCI subscriber 10 (step 320) sends a USSD message back to the CCI subsystem 7 indicating to the CCI subsystem 7 that the CCI subscriber 10 either accepts or rejects the call with routing response data. Rejecting or accepting a call by the subscriber 10, can in some cases requires the CCI subscriber 10 to select the "send" button or "end" button on the device 10. In many cases these options are managed directly by the MSC without a USSD message sent by the CCI subscriber 10 to the CCI subsystem 7. The CCI subscriber 10 can also send messages to the CCI subsystem 7 by sending a predefined string of digits to the CCI subsystem 7. The string of digits may be created by, but is not limited to, a depression of a physical button or a button displayed on a touch screen. In other embodiments of the disclosed invention voice activation or motion detection activation may be used and are integral parts of the disclosed invention.

[0045] If the CCI subscriber 10 accepts the call (step 325), the CCI subsystem 7 sends a message to the MSC 14 to connect the incoming call with the CCI subscriber 10. The MSC VASC 636wo

14 connects the call (step 330). The CCI subsystem 7 also sends a USSD message (step 335) to the CCI subscriber 10 providing updated call control options for the state of the connected call. During the call the CCI subscriber 10 may lose the current response options display on his device. When a device 10 indicates that it wants the current state interaction information, CCI subsystem 7 receives request (step 340) from CCI subscriber 10 and sends a USSD message providing caller information with the current response options, which will be displayed on the device 10.

[0046] The CCI subscriber 10 sends a USSD message to further provide options on how to handle the call. In a non-limiting example these may be, but not limited to, a request to transfer the call to attendant, or transfer the call with a canned message to instruct the party how to handle the call. Such instructions may include, but are not limited to, setting a meeting with the caller, providing help to the caller, taking a message from the caller, overriding a disallowed incoming call from a particular caller, or establishing a conference call with another CCI subscriber 10, with or without canned messages, and so on.

[0047] Once the CCI subscriber 10 is in the process of a call and receives the USSD updated call control options message, the CCI subscriber 10 can select, for example, the routing option displayed on the screen, or just converse with the caller. The CCI subsystem 7 proceeds with the call in accordance with the principles disclosed with respect of Fig. 4. If the CCI subscriber 10 rejects the call (step 350), the CCI subscriber 10 can either ignores the call or forwards the call (step 350). As described above the CCI subscriber 10 sends a USSD message to further provide options on how to handle the rejected call. The CCI subsystem 7 proceeds with the call in accordance with the principles disclosed with respect of Fig. 4.

[0048] During a call, multiple USSD messages can be sent between the CCI subsystem 7 and CCI subscriber 10 to provide the ability to the CCI subscriber 10 to choose the handling of calls with the option provided. Every CCI subscriber 10 has a call option database. A call option database may be unique for a given CCI subscriber 10, for a company, for any type of group or a system generic database.

[0049] Figure 4 shows an exemplary and non-limiting flowchart 400 in which the CCI subsystem 7 requests the MSC 14 to perform the action sent by the CCI subscriber 10 by means of a USSD message. The CCI subsystem 7 also sends USSD messages to the new CCI subscriber 10 to provide information on the call. The CCI subscriber 10 can request from the CCI subsystem 7 to hold the call the CCI subscriber 10 just received, and retrieve VASC 636wo

the call later. If the CCI subscriber 10 is in call, the CCI subscriber 10 can swap calls using USSD messages in accordance with the principles of the disclosed invention.

[0050] The CCI subscriber informs the CCI subsystem how to proceed with the call (step 410). One of the actions selected by the CCI subscriber 10 is "disconnect call". The USSD message sent by the CCI subscriber 10 to the CCI subsystem 7 indicates "disconnect call" (step 420). Upon receiving the USSD message from the CCI subscriber 10, the CCI subsystem 7 informs the MSC 14 to disconnect the call (step 425). The USSD message may also instruct the CCI subsystem 7 to start a new call after the call disconnect.

[0051] The USSD message sent by the CCI subscriber 10 can indicate the call to be forwarded to the CCI subscriber's 10 own voicemail box (step 430). The CCI subsystem 7 then sends a message to the MSC 14 to connect the originating caller to the CCI subscriber's 10 voicemail (step 435).

[0052] The USSD message sent by the CCI subscriber 10 can indicate the call to be transferred to another CCI subscriber 10 within the same company (step 440). The call is transferred to the new CCI subscriber 10 with an optional USSD message (step 445). The USSD message may contain information about the caller with a request from the CCI subscriber 10 sender to the new CCI subscriber 10, such as "set up a meeting," "help the caller," and more. The call is processed as a new call connecting the original caller to the new CCI subscriber 10. The CCI subsystem 7 proceeds with the call in accordance with the principles disclosed with respect of Fig. 3.

[0053] The USSD message sent by the CCI subscriber 10 can request the call to be transferred from the current CCI subscriber 10 to an attendant (step 450). At the same time CCI subsystem 7 sends a USSD message with the selected canned message which is then sent to the attendant's phone 10 "set a meeting" and the device status of the sending device 10. As a result of the transfer, CCI subscriber 10 is disconnected from the call and the USSD session ends. The call is transferred to the attendant. Attendant (step 455) receives the call and receives the USSD message related to the call. The call is processed as a new call connecting the original caller to the attendant. The CCI subsystem 7 proceeds with the call in accordance with the principles disclosed with respect of Fig. 3.

[0054] The USSD message sent by the CCI subscriber 10 can request to establish a conference with another party (step 460). The CCI subsystem 7 instructs the MSC 14 to establish the conference with the new party. The CCI subsystem 7 can also send USSD messages to the new party with information about the caller with optional information from the CCI subscriber 10 in accordance with the principles disclosed with respect of Fig. 3. VASC 636wo

[0055] Figure 5 shows an exemplary and non-limiting call flowchart 500, illustrating interaction capabilities between a CCI subscriber and CCI subsystem. The interaction controls the call in which CCI subscriber 10 uses USSD canned messages to control and personalize a call being transferred to a CCI subscriber 10.

[0056] As shown in the flowchart a request to establish a communication to a CCI subscriber 10 is requested (step 510). Once the request (step 515) arrives at the MSC 14, the MSC 14 sends a message (step 520) to the CCI subsystem 7. The CCI subsystem 7, receives the request and sends a USSD message (step 525) to the CCI subscriber 10. The message consists of the caller number, calling number, dialed number and call control options list. Call control options list contains, but not limited to, options such as "connect call," "transfer call," "rejects call" and so on. Options sent to the CCI subscriber 10 are determined by a database assigned to each CCI subscriber 10 and selected by the CCI subsystem 7 based on progress status of the call. The options in the database can be different for each CCI subscriber 10. The CCI subscriber 10 selects an option from the list and sends a USSD message (step 530) to the CCI systems 7. In an exemplary call, the CCI subscriber 10 selected option is to establish the call with the caller. Once the CCI subsystem 7 receives the message, the CCI subsystem 7 sends a message (step 535) to the MSC 14 to connect the call between the caller and the CCI subscriber 10. The MSC 14 establishes the call and sends a message (step 540) to the CCI subsystem 7 indicating the call is connected. The CCI subsystem 7 also sends another USSD message (step 550) to the CCI subscriber 10 with a new call control options list. The option list can be one of, but not limited to: transfer call, conference call, transfer call to <name>, consultation, hold, consult with <name>, transfer to <name> voice mail, transfer with canned message to <name>, send canned message, send interaction canned message.

[0057] In an exemplary call, the CCI subscriber 10 selects the option (step 555) to transfer the call to a subscriber named Jane with a canned message. Once the CCI subsystem 7 receives the request message from the CCI subscriber 10, the CCI subsystem 7 sends a new USSD message (step 560) back to the CCI subscriber 10 with canned information option list. Canned messages provide the CCI subscriber 10 with further controlling the handling of the call. Through the canned messages the CCI subscriber 10 directs information to the party how to proceed with a request. Information such as, but not limited to, "set a meeting," "help the caller," "get a message" and so on. Multiple USSD canned messages can be communicated between the CCI subsystem 7 and the CCI subscriber 10 during a call. In an exemplary call, the CCI subscriber 10 selects the option "set a meeting" and VASC 636wo

sends the USSD response message (step 565) to the CCI subsystem 7. The CCI subsystem 7 sends a message (step 570) to the MSC 14 to transfer the call between the caller and a CCI subscriber 10. The transfer can be implemented via Intelligent Network (IN) protocol or via sending a USSD message to MSC 14 with the short codes for call transfer while spoofing the CCI subscriber 10 ID. For example, CCI subsystem 7 sends a string defined for transfer 4*, 4=third party number Jane, the MSC translates it as coming from the CCI subscriber 10. In an exemplary call, CCI subscriber 10 Jane is connected (step 575) to the caller. The CCI subsystem 7 also sends USSD message (step 580) to the CCI subscriber 10, Jane, with call control options list. The list details, but is not limited to, the caller, the transfer party, and the request from the transfer party to set up a meeting with the caller. The CCI subsystem 7 can also send USSD message options list message to a non wireless device phone. For example, if Jane has a VoIP SIP phone, the CCI subsystem 7 converts message (step 580) to SIP and sends the USSD message data part of the display attributes of the SIP, so the SIP phone can display the message. The message includes the following details, but is not limited to, the caller, the transfer party, and the request from the transfer party to set up a meeting with the caller. CCI subscriber 10 Jane converses with the caller, sets up a meeting and disconnect the call (step 585).

[0058] Figure 6 shows an exemplary and non-limiting flowchart 600 in which CCI subscriber 10 receives a USSD message with details of all calls waiting in a queue. The calls may be listed on the CCI subscriber 10 queue or on a queue belonging to another CCI subscriber 10. Each time there is a change in the CCI subscriber 10 queue, a new USSD message is sent to the CCI subscriber 10. CCI subscriber 10 can select any of the listed calls in queue and control interaction such as answer call, reject call, send canned message.

[0059] As shown in flowchart 600 MSC 14, receives a new call request (step 610) for CCI subscriber 10, subscriber 10 is in call and may have several calls in queue. MSC 14 sends a message (step 610) to the CCI subsystem 7. The CCI subsystem 7 receives the request (step 620) and determines that the number of calls in a queue has reached a threshold. The CCI subsystem 7 sends a USSD message (step 630) to CCI subscriber 10' and CCI subscriber 10 indicating a new list and reaching the list threshold. The message (step 640) is received by both CCI subscribers 10 and 10'. The message consists of the calls in queue, caller number, calling number and call control options list. In an exemplary call, Subscriber 10' selects one of the calls in queue (step 650) and responds with the selection to CCI subsystem 7. The CCI subsystem 7 sends a message (step 660) to the MSC 14 to connect the selected call VASC 636wo

with the CCI subscriber 10'. The CCI subsystem 7 proceeds with the call 670 in accordance with the principles disclosed with respect of Fig. 3

[0060] Figure 7 shows an exemplary and non-limiting flowchart 700 in which CCI subscriber 10 receives a USSD message call control options such as "barge in" or "silent monitor". CCI subscriber 10 selects an option and sends the selection back to the CCI subsystem 7. The CCI subsystem 7 sends the CCI subscriber a USSD message with a list detailing all calls, which subscriber 10 is allowed to operate with the selected option.

[0061] As shown in flowchart 700, subscriber 10 requests to receive call control options (step 710) from the CCI subsystem 7. The request can be sent via a request to establish a new USSD session or via an established session. The request can be a predefined string sent to CCI subsystem 7, requesting current call control options list. The CCI subsystem 7 receives the request and sends a USSD message (step 720) to the CCI subscriber 10. The message consists of call control interaction options which consists of, but not limited to, options such as "barge-in," "silent monitor" and so on. The CCI subscriber 10 selects an option from the list and sends a USSD message (step 730) to the CCI subsystem 7. In an exemplary call, the CCI subscriber 10 selects option "barge-in." Once the CCI subsystem 7 receives the message, the CCI subsystem 7 sends a message (step 740) with a list of potential calls which CCI subscriber 10 can barge into. Options sent to the CCI subscriber 10 are determined by a database assigned to each CCI subscriber 10 and selected by the CCI subsystem 7 based on progress status of the call. The options in the database can be different for each CCI subscriber 10. The CCI subscriber 10 selects a call from the list and sends a USSD message (step 750) to the CCI subsystem 7. The CCI subsystem 7 sends a message (step 760) to the MSC 14 to barge-in subscriber 10 to the selected call. The MSC 14 connects CCI subscriber 10 to the selected call (step 770) and sends a message (step 780) to the CCI subsystem 7 indicating the call is connected.

[0062] Figure 8 shows an exemplary and non-limiting flowchart 800 in which CCI subscriber 10 receives a USSD message with details of the caller data stored in the CCI database such as title of caller.

[0063] As shown in flowchart 800, MSC 14 receives a new call for CCI subscriber 10. MSC 14 sends a message (step 810) to the CCI subsystem 7. The CCI subsystem 7 receives the request and identifies the caller (step 820). The caller is stated in the CCI database as a caller which permits sending to other CCI subscribers 10 additional information data. The permission to send additional information data and the type of data to be sent can be authorized by, but not limited to, the CCI subscriber 10, or the company's CCI subscriber VASC 636wo

10 administrator. Additional information data options sent include, but not limited to, are such as "Joe Cohen - VP Sales East Coast", "Jane Lipkin - 052-123-4567", "customer support" and so on.

[0064] In this case caller requested to send "Joe Cohen - VP Sales East Coast". CCI subsystem 7 sends USSD message (step 830) to subscriber 10 with the additional data, as part of this message additional options can be sent consisting but not limited to options such as call control interaction, called number and so on.

[0065] In an embodiment of the present invention, some or all of the method components are implemented as a computer executable code. Such a computer executable code contains a plurality of computer instructions that when performed in a predefined order result with the execution of the tasks disclosed herein. Such computer executable code may be available as source code or in object code, and may be further comprised as part of, for example, a portable memory device or downloaded from the Internet, or embodied on a program storage unit or computer readable medium.

[0066] The principles of the present invention, including, for example the CCI 7 and the USSD GW 16 may be implemented as a combination of hardware and software and because some of the constituent system components and methods depicted in the accompanying drawings may be implemented in software, the actual connections between the system components or the process function blocks may differ depending upon the manner in which the present invention is programmed.

[0067] The computer executable code may be uploaded to, and executed by, a machine comprising any suitable architecture. Preferably, the machine is implemented on a computer platform having hardware such as one or more central processing units ("CPU"), a random access memory ("RAM"), and input/output interfaces. The computer platform may also include an operating system and microinstruction code. The various processes and functions described herein may be either part of the microinstruction code or part of the application program, or any combination thereof, which may be executed by a CPU, whether or not such computer or processor is explicitly shown. In addition, various other peripheral units may be connected to the computer platform such as an additional data storage unit and a printing unit.

[0068] The functions of the various elements shown in the figures may be provided through the use of dedicated hardware as well as hardware capable of executing appropriate software. When provided by a processor, the functions may be provided by a single dedicated processor, by a single shared processor, or by a plurality of individual processors, VASC 636wo

some of which may be shared. Explicit use of the term "processor" or "controller" should not be construed to refer exclusively to hardware capable of executing software, and may implicitly include, without limitation, digital signal processor hardware, ROM, RAM, and non-volatile storage. Other hardware, conventional and/or custom, may also be included.

[0069] All examples and conditional language recited herein are intended for pedagogical purposes to aid the reader in understanding the principles of the invention and the concepts contributed by the inventor to furthering the art, and are to be construed as being without limitation to such specifically recited examples and conditions. Moreover, all statements herein reciting principles, aspects, and embodiments of the invention, as well as specific examples thereof, are intended to encompass both structural and functional equivalents thereof. Additionally, it is intended that such equivalents include both currently known equivalents as well as equivalents developed in the future, i.e., any elements developed that perform the same function, regardless of structure.

[0070] While the present invention has been described at some length and with some particularity with respect to the several described embodiments, it is not intended that it should be limited to any such particulars or embodiments or any particular embodiment, but it is to be construed with references to the appended claims so as to provide the broadest possible interpretation of such claims in view of the prior art and, therefore, to effectively encompass the intended scope of the invention. Furthermore, the foregoing describes the invention in terms of embodiments foreseen by the inventor for which an enabling description was available, notwithstanding that insubstantial modifications of the invention, not presently foreseen, may nonetheless represent equivalents thereto.

[0071] It will be appreciated that although various aspects of the invention have been described with respect to specific embodiments, alternatives and modifications will be apparent from the present disclosure, which are within the spirit and scope of the present invention as set forth in the following claims. For example, enterprise management can be done by web management or by any other method such as using wireless device, using voice call etc.) as long as the enterprise is provided with the ability to control and define how the routing of its employees' mobile devices will be implemented (i.e. set rules, create company wide features and parameters). It should be further noted that the teachings shown herein are also applicable when a user device initiates a communication with either a call center and/or another user device or devices.

Claims

VASC 636wo

What is claimed is

1. A method for call control comprising: sending a first message using an Unstructured Supplementary Service Data (USSD) protocol to a first device; receiving a first response message from said first device responsive of said first message; and, exchanging messages between a call control manager and said first device, said messages containing selection lists comprising a plurality of call options sent to said first device from said call control manager and responses thereof received from said first device.

2. The method of claim 1, wherein said exchanging messages is initiated responsive to the type of said first response message.

3. The method of claim 1, wherein said first message contains call initiator information.

4. The method of claim 3, wherein said call initiator information is one or more of: said call initiator device number, said call initiator dialed device number, and said call initiator member status, call initiator name, call initiator company title, call initiator organization name, call initiator preferred status.

5. The method of claim 1, wherein said first response is one of: accepting said call, rejecting said call, rejecting said call with a message, diverting said call to voice mail, diverting said call to a second device.

6. The method of claim 1, wherein a call option of said plurality of call options is one of: transferring said call to a second device, transferring said call to a voicemail, adding a second device to said call, a canned message.

7. The method of claim 6, wherein said canned message includes: "set a meeting," "set a conference call," "get a message," "help said call initiator," "can you take a call?"

8. The method of claim 1, wherein said exchanging messages further comprising: VASC 636wo

resending of a previously sent message responsive of a request from said first device.

9. The method of claim 1, further comprising: determining contents of said selection list responsive to information about said first device.

10. The method of claim 9, further comprising: retrieving said information about said first device from a database.

11. The method of claim 1, wherein said responses received from said first device comprising: one or more digits transferred to a call control manager over a communication channel using a USSD interface; said digits generated by a sequential or parallel depression of buttons, said buttons being one of: physical buttons, displayed buttons.

12. The method of claim 1 wherein said first device is one of: cellular phone, personal digital assistant, smart phone, and wireless network device.

13. The method of claim 1, further comprising: sending a barge-in call control message from said call control manager to said first device during a call in progress.

14. The method of claim 1, further comprising: receiving a call control message from said first device to set up a conference call.

15. The method of claim 1, further comprising: receiving a message by said call control manager; and, creating a new call responsive of said message.

16. The method of claim 1, further comprising: receiving a message by said call control manager; VASC 636wo

swapping between calls in progress.

17. The method of claim 1, further comprising: sending a message to another subscriber requesting a response.

18. A method of information exchange between devices communicating in a wireless exchange comprising: sending information from a first device to at least a second device using an Unstructured Supplementary Service Data (USSD) interface protocol of a communication channel.

19. The method of claim 18, wherein said information includes at least one of: data information, status information, control information.

20. The method of claim 19, wherein said status information includes at least one of: not available, available.

21. The method of claim 20, wherein sending said status information is responsive to one of: the status of said first device changing from connected state to disconnected state, the status of said first device changing from disconnected state to connected state.

22. The method of claim 21 , further comprising: prohibiting communication destined to said first device from said at least second device when said status information of said first device is not available; or, forwarding communication destined to said first device from said at least second device when said status information of said first device is available.

23. The method of claim 20, wherein said sending status information further comprising: sending said status information automatically; or, sending said status information responsive of depression of button on said at least a second device.

24. The method of claim 19, further comprising: displaying said status information on said at least a second device. VASC 636wo

25. The method of claim 24, further comprising: requesting said status information from said first device by said at least second device.

26. A call control manager comprising: means for sending a first message using an Unstructured Supplementary

Service Data (USSD) protocol to a first device; means for receiving a first response message from said first device; and, means for exchanging messages with said first device, said messages containing selection lists comprising a plurality of call options sent to said first device and responses thereof received from said first device.

27. The call control manager of claim 26, further comprising: means for initiating said exchanging of messages responsive of a type of said first response message.

28. The call control manager of claim 26, wherein a call option includes one of: transfer said call to a second device, transfer said call to a voicemail, add a second device to said call, a canned message.

29. The call control manager of claim 28, further comprising: means for resending a previously sent message responsive of a request from said first device.

30. The call control manager of claim 26, further comprising: means for determining said call options of said selection list responsive of information about said first device.

31. The call control manager of claim 30, further comprising: means for retrieving said information about said first device from a database.

32. The call control manager of claim 26, further comprising: VASC 636wo

means for causing a display of status on a display of said first device, said status is of a device communicating over a wireless network by exchanging one or more messages using the USSD protocol.

33. The call control manager of claim 26, further comprising: means for creating a new call.

35. The call control manager of claim 26, further comprising: means for swapping to another call.

36. The call control manager of claim 26, further comprising: means for enabling barge-in to a call in progress.

37. The call control manager of claim 26, further comprising: means for enabling consultation with another subscriber.

38. The call control manager of claim 26, further comprising: means for enabling set up of a conference call.

39. The call control manager of claim 26, further comprising: means for updating an attendant device status.

40. A wireless exchange comprising the call control manager of claim 26.

41. The call control manager of claim 26, further comprising: an application interface for the integration to at least an enterprise business system.

42. The call control manager of claim 41, wherein said enterprise business system is at least one of: e-mail application, calendar application, a web service application.

43. A software product embodied on a computer readable medium, said software product, when executed by a computer, causing the computer to perform the method of claim 1.