Spoofing to preserve a communication link

Details Spoofing to preserve a communication link Spoofing to preserve a communication link

2006-01-31

2006-01-31

Chin, Wellington (Department: 2664)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S517000, C370S516000, C379S215010, C379S093350

Reexamination Certificate

active

06993010

ABSTRACT:
A local communication layer is placed in communication with a remote communication layer via a communication link established between a local modem and a remote modem. The communication layers may, for instance, be PPP layers. The communication is then interrupted, for example, by being temporarily paused or being placed on hold. In one scenario, the communication is placed on hold by the remote modem, as a result of a call-waiting alert received by the remote modem. After the communication has been placed on hold, the local modem monitors PPP frames from the local PPP layer and spoofs the local PPP layer by way of responses to the local PPP layer requests as if such responses were made by the remote PPP layer.

REFERENCES:
patent: 5519767 (1996-05-01), O'Horo et al.
patent: 5550908 (1996-08-01), Cai et al.
patent: 6504838 (2003-01-01), Kwan
patent: 6580793 (2003-06-01), Dunn et al.
patent: 6714646 (2004-03-01), Gnosspelius et al.
patent: 6731726 (2004-05-01), Kerner et al.
patent: 6754342 (2004-06-01), Surazski et al.
patent: 6765901 (2004-07-01), Johnson et al.
patent: 6785371 (2004-08-01), Olafsson
patent: 6842803 (2005-01-01), Schmidt et al.
patent: 6912276 (2005-06-01), Olafsson et al.
patent: 6925174 (2005-08-01), LeBlanc
patent: 2004/0174967 (2004-09-01), Liang et al.

Affiliated with

Also associated with

Rating

Spoofing to preserve a communication link does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spoofing to preserve a communication link, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spoofing to preserve a communication link will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3584237