1
Murali Aravamudan, Robert F Henrick, Rangamani Sundar, Gregory James Xikes: Assignable associate priorities for user-definable instant messaging buddy groups. Lucent Technologies, Guy H Eriksen, October 9, 2001: US06301609 (768 worldwide citation)

A unified messaging solution and services platform is provided by utilizing the features and capabilities associated with instant messaging to locate a registered user, query the user for a proposed message disposition, and coordinate services among a plurality of communication devices, modes, and c ...


2
Antonio DeSimone, Elizabeth A Hohne, Rangamani Sundar, Vishwanathan Thiagarajan, Kumar K Vishwanathan: System and method for multiple asynchronous text chat conversations. AT & T, William Ryan, April 3, 2001: US06212548 (356 worldwide citation)

A plurality of users communicate in a plurality of real-time text conversations (e.g., “chat sessions”) in a client-server message processing environment using messages including a conversation index, a conversation-initiator ID and a list of message recipients. Each conversation is maintained at cl ...


3
Rangamani Sundar, Murali Aravamudan, Shamim A Naqvi, Prakash R Iyer, Kumar K Vishwanathan, Gurudutt Upendra Pai: Method, system, and apparatus for a mobile station to sense and select a wireless local area network (WLAN) or a wide area mobile wireless network (WWAN). Winphoria Networks, April 3, 2007: US07200112 (144 worldwide citation)

A method, system and apparatus for internetworking WWAN and WLAN are disclosed. More specifically, a method, system, and apparatus for a mobile station to sense and select a WLAN or a WWAN are disclosed. A mobile station may communicate according to an 802.xx wireless local area network air interfac ...


4
Rangamani Sundar, Murali Aravamudan, Shamim A Naqvi, Prakash R Iyer, Kumar K Vishwanathan, Gurudutt Upendra Pai: Method, system and apparatus for providing mobility management of a mobile station in WLAN and WWAN environments. Winphoria Networks, December 12, 2006: US07149521 (126 worldwide citation)

A method, system and apparatus for internetworking WLAN and WWAN environments are disclosed. More specifically, a method, system and apparatus for providing mobility management of a mobile station in WLAN and WWAN environments are disclosed. Roaming and handoffs are discussed.


5
Kumar K Vishwanathan, Rangamani Sundar, Murali Aravamudan, Shamim A Naqvi, Kajamalai G Ramakrishnan, Prakash R Iyer: System and method of group calling in mobile communications. Motorola, Lalita W Pace, February 7, 2006: US06996414 (50 worldwide citation)

Information is retrieved from a list of members of a group call group. Based on the retrieved information, a group call is established between first and second mobile stations (MS). The first MS is served by a first base station controller (BSC) and the second MS is served by a second BSC. Voice dat ...


6
Shamim A Naqvi, Kumar K Vishwanathan, Rangamani Sundar, Murali Aravamudan: System and method of managing supplementary features in the presence of a proxy switch in a mobile communications network. Winphoria Networks, March 30, 2004: US06714777 (17 worldwide citation)

A proxy switch, communication methods, and communication logic for use in a mobile network are described. A proxy switch is deployed between a base station subsystem and a mobile station center. It receives signaling messages and either retransmits them, blocks them, converts them, or siphons them t ...


7
Shamim A Naqvi, Kumar K Vishwanathan, Rangamani Sundar, Murali Aravamudan: System and method of servicing mobile communications with a proxy switch. Winphoria Networks, February 1, 2005: US06850763 (10 worldwide citation)

The present invention provides a proxy switch, communication methods, and communication logic for use in a mobile network. A proxy switch is deployed between a base station subsystem and a mobile station center. The proxy switch receives signaling messages and either retransmits them, blocks them, c ...


8
Kumar K Vishwanathan, Prakash R Iyer, Rangamani Sundar: Systems and methods for providing concurrent mobile applications to mobile communication devices. ENVIO Networks, Edell Shapiro & Finnan, July 6, 2010: US07751848 (9 worldwide citation)

A system is provided that enables the delivery of multiple concurrent mobile applications to a mobile communication device. A concurrency application server interfaces to a mobile switching center to obtain call parameters in order to determine a context of a mobile device call. The concurrency appl ...


9
Shamim A Naqvi, Kumar K Vishwanathan, Rangamani Sundar, Murali Aravamudan: System and method of preserving point codes in a mobile network having a proxy switch. Winphoria Networks, Hale and Dorr, November 18, 2003: US06650909 (9 worldwide citation)

A proxy switch, communication methods, and communication logic for use in a mobile network are described. A proxy switch is deployed between a base station subsystem and a mobile station center. It receives signaling messages and either retransmits them, blocks them, converts them, or siphons them t ...


10
Shamim A Naqvi, Murali Aravamudan, Rangamani Sundar, Kumar K Vishwanathan: System and method of selecting GGSN in a mobile communications network. Winphoria Networks, Hale and Dorr, April 8, 2003: US06545992 (9 worldwide citation)

A method and system of determining a GGSN to serve data calls in a mobile communications network is provided. Messages are received from a SGSN, and analyzed to determine if the message is requesting the identity of a GGSN. If the received message is requesting the identity of a GGSN, a GGSN selecti ...