System and method for enhancing a voice channel in voice over internet protocol
US7088723B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 23, 2001 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | Apr 9, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13399
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and system for enhancing a voice channel in voice over Internet protocol includes an integrated access device (IAD) that receives voice data from user devices, removes RTP/UDP header and IP header information, and generates an AAL2 CPS cell. A Registration, Administration and Status (RAS) server receives the AAL2 CPS cell, removes the AAL2 information and adds an RTP/UDP header and IP header, such that an IP packet is output for Internet transport. The RAS server can also receive an IP packet and convert the IP packet to an AAL2 CPS cell, to be transported to the IAD. The RAS performs the conversion in accordance with header data received from the IAD that is stored in, and removed from, a lookup table in response to command signals sent by the IAD. Thus, the asymmetric digital subscriber line (ADSL) handles an increased number of calls, and at an increased efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.