Janardhan M Theppasandra

US Patent:

8155633, Apr 10, 2012

Filed:

Mar 10, 2009

Appl. No.:

12/401558

Inventors:

Janardhan Theppasandra - Issaquah WA, US

Assignee:

T-Mobile USA, Inc. - Bellevue WA

International Classification:

H04M 3/42

US Classification:

455417, 455415, 4554141

Abstract:

A system and method to detect and provide information related to slamdown calls placed to a subscriber's mobile device. In one embodiment, a who-called server is implemented as part of a GSM network that uses a CAMEL protocol. The who-called server receives a CAMEL-based trigger when an incoming call placed to the subscriber's mobile device is deflected to a forwarded entity. In some instances, the who-called server ensures that the incoming call was deflected because the subscriber's mobile device was unreachable. The who-called server then determines whether the calling party abandons the incoming call before incoming call is answered by the forwarded entity. If the calling party does abandon the incoming call, the who-called server captures the calling party's identification information. The who-called server, in some instances, transmits the identification information to the subscriber after the subscriber's mobile device switches from the unreachable state to a reachable state.

US Patent:

8437745, May 7, 2013

Filed:

Aug 6, 2009

Appl. No.:

12/537140

Inventors:

Janardhan Theppasandra - Issaquah WA, US
Rob Piscopo - Bellevue WA, US
Nancy Bostdorff - Seattle WA, US

Assignee:

T-Mobile USA, Inc. - Bellevue WA

International Classification:

H04W 4/00

US Classification:

455413, 370338

Abstract:

A system for registering a mobile device located in a network outside a device's home network is described. In some examples, the system receives a message including contents associated with a location of the mobile device, and extracts the contents of the received message. The system matches the extracted contents to one or more rules associated with an adjustment of subscriber data within a registration database for the home network, adjusts the data, and registers the mobile device having the adjusted data.

US Patent:

8498385, Jul 30, 2013

Filed:

Jun 5, 2009

Appl. No.:

12/479683

Inventors:

Janardhan Theppasandra - Issaquah WA, US
Nancy Bostdorff - Seattle WA, US

Assignee:

T-Mobile USA, Inc. - Bellevue WA

International Classification:

H04M 1/64

US Classification:

379 8804, 37920102

Abstract:

A system and method for updating call redirection information and other communication redirection information. The system is integrated with and accessed by a subscriber via a voicemail system or call handling server. The system may present one or more options to a subscriber to provide call redirection information. The subscriber may provide call redirection information, such as an alternate number, via an interactive voice response (IVR) component of the voicemail system or call handling server. The subscriber may also access the system and provide call redirection information via a voicemail system or call handling server web interface, a user-selectable menu on the subscriber's telecommunications device, and so on. The system communicates with other components in a telecommunication network to provide the call redirection information and enable calls to a telecommunications device to be appropriately redirected or deflected.

US Patent:

6473615, Oct 29, 2002

Filed:

May 21, 1999

Appl. No.:

09/316465

Inventors:

Janardhan Theppasandra - Dallas TX
Leif Linde - Richardson TX

Assignee:

Ericsson Inc. - Research Triangle Park NC

International Classification:

H04Q 720

US Classification:

455445, 455433, 455417

Abstract:

A selective call notification feature in a communication system ( ) with a distributed processor ( ), a telephonic device ( ), and another telephonic device ( ) having a telephonic identification code. A selective call notification process at the distributed processor ( ) provides for the sending of a signal through the communication system ( ) to the telephonic device ( ) in response to the other telephonic device ( ) being available to receive calls.