Method and apparatus for digital cellular internet voice communications
US6847632B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1998 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Dec 22, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/1106
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A digital cellular handset capable of supporting voice communications over the Internet, in addition to the digital cellular handset's usual mode of voice communications over the digital cellular network/public telephony network is disclosed. Internet protocol software such as H.323, Session Initiation Protocol (SIP), and Media Gateway Control Protocol (MGCP) is stored within the digital cellular handset device run on an H.323 Digital Signal Processor (DSP) and H.323 microcontroller to packetize and unpacketize the digital data streams received by or transmitted from the handset. There is also disclosed the use of the Short Message Service (SMS) with PCS digital cellular communication systems to allow call alerting for digital cellular call set-up, initiation and establishment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.