The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 2005
Filed:
Jul. 31, 2000
David William Geen, King George, VA (US);
Narasimha K. Nayak, Glen Allen, VA (US);
Tribhuvan Kambham, Glen Allen, VA (US);
David William Geen, King George, VA (US);
Narasimha K. Nayak, Glen Allen, VA (US);
Tribhuvan Kambham, Glen Allen, VA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
An IP telephony gateway and a media server are configured for changing media streams during an existing call according to the voice over IP (H.323) protocol, where a first H.245 media channel configured for transmitting a first media stream at a corresponding first compression such as G.723 or G.729A is closed and a second H.245 media channel configured for transmitting a second media stream at a corresponding second compression such as G.711 is opened during the same H.225 call.