Easy activation of a cellular phone
US5835858A · kind A · utility
42Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1995 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | Nov 28, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W8/265
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An Easy Activation sequence for cellular phones that includes a checking code calculation feature which enables a phone owner or user to safely carry out operator assisted NAM programming activation locally in the phone independent of the support provided by the network. The user need only key in a MIN, SID, and checksum in response to appropriate prompts and obtain an indication of whether the NAM programming has been correct or not. Various other parameters, such as A-key and alphanumeric SID, may also be accomodated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.