Firewall interface configuration to enable bi-directional VoIP traversal communications
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 30, 2013
Issued Date -
N/A
app pub date -
Jun 7, 2012
filing date -
Sep 20, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Methods and systems for an intelligent network protection gateway (NPG) and network architecture are provided. According to one embodiment, a firewall provides network-layer protection to internal hosts against unauthorized access by hosts of an external network by performing network address translation (NAT) processing of Internet Protocol (IP) addresses. The firewall changes data in headers of VoIP packets and corresponding data contents of the VoIP packets, to enable bi-directional VoIP communications. An external VoIP interface of the firewall receives incoming VoIP packets having a user alias (e.g., an email address) and an indication regarding a VoIP port of external interface. The packets are directed to an appropriate internal host by the firewall performing port address forwarding based on the port indication to a Media Gateway Control Protocol (MGCP) media gateway within the internal network that maintains a mapping of user aliases to private addresses of the internal hosts.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully