Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › System and method for establishing PSTN calls via an IP request

System and method for establishing PSTN calls via an IP request

US Patent 8379825 · Granted Feb 19, 2013

Estimated economic value: $1,296,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method and apparatus for selective message service blocking2013
Method and apparatus for screening request to establish SIP session2013
Method and apparatus for detecting a misaligned page2013
Security system triggered by heart rate detection2013
Mid-call hand-off between end user terminals2013
Mid-call hand-off between end user terminals2013
Suppression of malicious SIP messages using the resource priority header2013
Mid-call hand-offs in telecommunication networks2013
Mid-call hand-offs in telecommunication networks2013
Method and apparatus for the creation of an event-associated electronic device d2013
Telecommunication relay service assistance for incoming calls2012
Priority telephone service reversion and notification2012