Voice traffic through a firewall

Details Voice traffic through a firewall Voice traffic through a firewall

2007-01-23

2007-01-23

To, Doris H. (Department: 2616)

Multiplex communications

Communication techniques for information carried in plural...

Adaptive

Reexamination Certificate

active

09766027

ABSTRACT:
The number of holes that are opened in a firewall for internet telephony is limited to a first hole used for call control and a second hole used for audio traffic. Fixed destination ports for telephony traffic and call control traffics are created at a destination. Media streams are received at the telephony fixed destination port. The source of each media stream is commanded to provide a unique identifier for each media stream arriving at the destination from each source. Each media stream is identified by a unique identifier provided by the source. The unique identifier for each media stream is communicated to the destination by each source over call control. All telephony traffic is received only at the fixed destination port or telephony and all call control is received only at the fixed destination port for call control.

REFERENCES:
patent: 6134235 (2000-10-01), Goldman et al.
patent: 6470020 (2002-10-01), Barker et al.
patent: 6697377 (2004-02-01), Ju et al.
patent: 6760309 (2004-07-01), Rochberger et al.
patent: 6804254 (2004-10-01), Pearce et al.
patent: 6826176 (2004-11-01), Siddiqui et al.
patent: 6922786 (2005-07-01), Ong
Douglas Comer, Internetworking with TCP/IP Principles, Protocols, and Architectures, Prentice Hall, Published 1995, 4th Edition, pp. 97-99, 197-206, 221-222, & 542-549.
Douglas E. Comer, Internetworking with TCP/IP Principles, Protocols, and Archiitecture, Fourth Edition, Prentice Hall, dated 1995, pp. 197-202 7 209-222.
Douglas E. Comer, Internetworking with TCP/IP Principles, Protocols, and Architectures, Fourth Edition, Prentice Hall, dated 1995, pp. 197-202 & 209-222.
IETF, Request for Comments (RFC) 2543: “Session Initiation Protocol” (SIP) (Mar. 1999).

Affiliated with

Also associated with

Rating

Voice traffic through a firewall does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Voice traffic through a firewall, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voice traffic through a firewall will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3733893