Greatcall, Inc.

Philip C Imming

Krijn Van Der Raadt

John H Chin

A wireless phone system and methods performed thereon for cryptographically processing SMS messages is disclosed. A cryptographic pad is used to replace characters in a payload of a SMS message with coded characters. The cryptographic pad is used by the receiver of the SMS message to decode it. The cryptographic pad is one of two or more possible cryptographic pads stored in the receiver. In one embodiment, the two or more possible cryptographic pads are sent as a key where a particular cryptographic pad is referenced in the key using an index.

Short message service cipher

In one embodiment, the present disclosure provides a method, system and device for determining information about a location of the mobile device. The mobile device is configured to contact a private response call center (PRCC), e.g., by pressing or selecting one or more buttons or a softmenu. A PRCC operator can identify a potential emergency situation and, upon such an identification, initiate a conference call between a PRCC operator, a user of the mobile device, and a public safety answering point (PSAP) operator. The mobile device may transmit location information previously determined before PRCC call and be commanded to gather new location information during the call. The mobile device may also, while on a call with the PRCC, determine and transmit to the PRCC location information.

Growing community of inventors

Coronado, CA, United States of America

Philip C Imming