Lucent Technologies Inc.

Alcatel Lucent

Telecommunication Systems, Inc.

Robert T Calabrese

Jeffrey Arthur Zahnle

Robin Jeffrey Thompson

Harold Robert Smith, Jr

Douglas Harvey Riley

Robert John Zurawski

Thomas Edward Hudepohl

Yigang Cai

Mark Titus

Dara Ung

Ramachendra Prahlada Batni

Michael Rudolph

Todd Cartwright Morgan

Carle S Johnson, Jr

Bernard Louis Cyr

Yile Enoch Wang

Nicholas John Gnesda

Ashish Trivedi

Harold Smith

Sridhar Sripathi

Langdon Edward Alger

Tracy Edwin Iii East

John Mitchell Rendak

Margaret S Shepard

Karl Lebedda

Jason Byrne

Roger L Bunting

Atul Halari

Neil Harrison

Aftab Ahmed Khan

Indrani Sen

Systems and methods are disclosed for notifying external message centers when a mobile device becomes available to receive a text message. One embodiment includes a message waiting system that identifies a failed delivery attempt of a text message to a mobile device that is unavailable, where the text message originated from an external message center. The system identifies routing information for the external message center based on the failed delivery attempt, generates a Message Waiting Indicator (MWI) record for the text message that includes the routing information for the external message center, and stores the MWI record. When the system identifies that the mobile device becomes available, the system identifies the MWI record that includes information on the failed delivery attempt to the mobile device, and sends a notification indicating that the mobile device is available to the external message center based on the routing information in the MWI record.

Message waiting notification to external message centers

The apparatus, method and system embodiments of the present invention provide for maintaining call control at a gateway mobile switching center (MSC), for roaming mobile units, utilizing a packet network or link, such as an ATM link. The preferred system embodiment includes a gateway MSC, a serving MSC, and a base station having a wireless link with the roaming mobile unit. The gateway MSC includes a protocol handler for voice (PHV). For any given incoming call for the roaming mobile unit or outgoing call from the roaming mobile unit, the gateway MSC designates a specific address (or channel) on the PHV, referred to as a data link connection identifier (DLCI), for use as an address for voice packets to be received from the roaming mobile unit via the base station and serving MSC, and the base station also provides a base station packet address to the gateway MSC, for use as an address for voice packets to be received from the gateway MSC (through the serving MSC) for the roaming mobile unit, thereby creating a full duplex packet link. The packet link serves as a voice path between the base station, the serving MSC, and gateway MSC, with all communication to and from the roaming mobile unit routed through the gateway MSC. The gateway MSC thereby maintains all call control for the roaming mobile unit for the implementation of advanced calling features, such as call waiting and three-way calling. In the preferred embodiment, the DLCI is included as a new parameter for ANSI-41 compatible messages. In addition, new ANSI-41 compatible messages are also utilized, a Gateway Origination Request containing the base station packet address and a Gateway Origination Request Return Result containing the new DLCI parameter.

Apparatus, method and system for maintaining call control at a gateway mobile switching center utilizing a packet network

A method and apparatus for providing wireless intelligent network services to mobile stations currently being served by a mobile switching center (S-MSC) that is not wireless intelligent network capable. The call is routed through a wireless intelligent network capable MSC (O-MSC). When the O-MSC receives the call, it requests instructions from a service control point (SCP) which provides a list of triggers for call states requiring further SCP instructions. Advantageously, this arrangement avoids the use of a double connection, using a loop-around trunk, in the O-MSC, as is required in the prior art.

Mobile station origination when serving mobile switching center is not wireless intelligent network capable

The present invention supports a voice messaging service in a wireless communications system. A subscriber accesses a voice messaging system (VMS) through a wireless device in order to retrieve voice messages that are deposited into the subscriber's voice mailbox. The subscriber may wish to return a call to a call sender. The call is established to the call sender's directory number through a serving mobile switching center (MSC) in concert with a service control point (SCP) and an intelligent peripheral (IP). The subscriber may return to the VMS so that the subscriber can resume the voice mail session. The subscriber ends the call or optionally enters a feature rebound code. The IP detects an associated call event and initiates a connection between the subscriber and the VMS. The IP notifies the SCP, causing the SCP to instruct the serving MSC to re-establish the connection between the subscriber and the VMS.

Method and apparatus for supporting voice message services with automatic rebound in a wireless intelligent network

A technique and architecture that enables a Service Provider (SP) to hot-line a roaming WIN subscriber (e.g., a prepaid subscriber) to a closest WIN platform via a Least Cost Network (LCN), depending on the location, and optionally, on the time of a call from a roaming subscriber. Importantly, the present invention allows a service provider to significantly reduce the cost of routing a long distance call when the subscriber roams outside the service provider's network. A service provider may automatically provide one of a plurality of hot-line numbers to a roaming subscriber (e.g., a prepaid subscriber) of a wireless network (e.g., a Wireless Intelligent Network (WIN)) associated with a desired wireless network platform (e.g., a closest WIN platform, e.g., service node (SN), service control point (SCP), etc.) via a LCN. The LCN can be, e.g., an SS7 network, a PSTN, a TCP/IP (Internet), or dedicated trunks.

Wireless hot-lining with automatically assigned variable hot-line number

A wireless communications system provides call transfer capability for an incoming call to a mobile subscriber unit. The mobile subscriber unit requests the call transfer to a serving MSC. The serving MSC relays the request to a home location register, and the home location register executes the request by initiating the call transfer in conjunction with an originating MSC. This arrangement obviates the need for supporting call transfer on the serving MSC and the need for inter-MSC facilities once the call transfer is completed. Moreover, the approach of the present invention enables call transfer to be ubiquitously supported within a wireless communications system.

Apparatus and method providing ubiquitous call transfer of an incoming call to a mobile subscriber unit

An apparatus, method and system are provided which, for a wireless telecommunication session handled by a mobile switching center, allow an adjunct network entity, such as an intelligent peripheral, a service node, a service control point, or another switching center, to maintain control over the telecommunication session and, in the preferred embodiment, provide intelligent network services. Such control is provided without the adjunct network entity monitoring or maintaining a direct connection the telecommunication session, such as a voice path or other circuit-based connection. In the various embodiments, the adjunct network entity maintains such control through the transmission of a control message to the mobile switching center, in which the control message includes various directives to the mobile switching center, such as a redirection directive, directing the switching center to route or reroute a call leg to specified digits; an announcement directive, directing the switching center to play a specified announcement during the telecommunication session; or an action directive, directing the switching center to perform a specified action such as releasing the telecommunication session.

Apparatus, method and system for wireless telecommunication session control by an adjunct network entity

An apparatus and method in a telephone communications system that provide for redirecting a call by an adjunct processor, utilizing a control message. The control message contains various directives for current or subsequent execution by a telephone switching center, which can assume a function of a mobile switching center in a wireless communications system or a landline switching center in a landline telephone system. Directives in the control message instruct the telephone switching center to redirect a call contingent upon subsequent call events that can occur.

Method and apparatus providing call redirection for subsequent call events in a telephone communications system

A cellular system in accordance with the principles of the present invention permits one node, or network element, within a cellular system to request dialed number validation from another network element in the cellular system. The invoking and responding nodes may be any of the following: a mobile switching center, a home location register, a service control point, or a service node. Upon reaching a state in call processing where further dialed number analysis may be required, the invoking node will send an ANSI-41 compliant dialed number validation request message to the node performing validation. The validating node will determine whether the dialed number is allowed under the subscriber's dialing plan. After making the determination, the validating node will return a message to the invoking node indicating whether the specified digits are allowed according to the subscriber's dialing plan.

ANSI 41 dialed number validation

Techniques for providing enhanced wireless services such as interactive voice services to a serving mobile switching center which is originating a call for a mobile station that requires such services via the public switched telephone network (PSTN). The serving mobile switching center has a trigger which causes it to respond to a call from the mobile station by sending a message according to the IS 41 protocols to the enhanced mobile switching center that provides the enhanced service. The enhanced mobile switching center responds to the message by associating the contents of the message with a temporary local dialing number (TLDN) and sending a message to the serving mobile switching center that contains the TLDN. The serving mobile switching center uses the TLDN to set up a call via the PSTN to the enhanced mobile switching center, which then uses the content of the message associated with the TLDN to establish which enhanced service is required. It calls the service node for the enhanced service and bridges the call from the serving mobile switching center to the service node. The call provides a voice channel for the enhanced service.

Methods and apparatus for accessing enhanced wireless services platforms via the public switched telephone network

A method is provided for updating a message waiting notification count in a profile of a mobile telephone in an ANSI41 environment. An information directive, a message defined by the ANSI41 standard is modified to included the message waiting notification count, a parameter defined by the ANSI41 standard. The updates to the message waiting notification count are transmitted from a voice mail system node to a home location register by the modified information directive without the use of dedicated connections and proprietary interfaces.

Method for updating message waiting number count for a mobile telephone

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Naperville, IL, United States of America

Robert T Calabrese