Paul Raymond Booth

US Patent:

7523227, Apr 21, 2009

Filed:

Jan 14, 2003

Appl. No.:

10/345435

Inventors:

Charles T. Yager - Cupertino CA, US
Surendra Anubolu - Fremont CA, US
Sandeep Arvind Patel - Los Gatos CA, US
Paul Booth - Campbell CA, US
Amar C. Amar - Fremont CA, US
Bradley D. Erickson - San Carlos CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 13/28

US Classification:

710 16, 709233, 370232

Abstract:

An Interchangeable Standard Port or Stack Port (ISPSP) uses a standard physical connector such as an RJ-45 or SFP. The ISPSP automatically detects whether it is connected to a standard port, such as a 1000BaseT, or whether it is connected to another ISPSP stacking port. This automatic detection can be done through hardware or software. Once the auto-detection is complete the routing platform will automatically configure the ISPSP port for standard 1 Gbps bit rate and framing, or for stacking, e. g. , 2. 5 Gbps bit rate, and framing.

US Patent:

20100208724, Aug 19, 2010

Filed:

Feb 13, 2009

Appl. No.:

12/371450

Inventors:

Paul Norwood Booth - Los Gatos CA, US
James Robert Molenda - Los Gatos CA, US
Mohamed Kamel Zanaty - Cary NC, US

International Classification:

H04L 12/66

US Classification:

370352, 37939501

Abstract:

In an example embodiment, an IP phone is connected to a network switch that has an established communications channel to a call control server. The network switch acts as a proxy for the phone exchanging registration information that in effect keeps the phone registered while the phone itself can go to sleep as defined by periods of the day, periods where the phone is unused, or presence, which can then wake-up quickly with assistance from the switch. If the switch is not able to act as proxy, the phone can switch from sleep mode to “wake” up mode at predetermined intervals, such as every 30 seconds, in order to respond to keep alive packets from the call control server.