Voice over IP auto-switching/backup for emergency calls

Details Voice over IP auto-switching/backup for emergency calls Voice over IP auto-switching/backup for emergency calls

2011-04-19

2011-04-19

Al Aubaidi, Rasha S (Department: 2614)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S354000

Reexamination Certificate

active

07929517

ABSTRACT:
A VoIP adapter module for a VoIP phone system switches the phone connection from a broadband connection to a wired connection when a power outage or a broadband disconnection is detected. The switch is accomplished by establishing a connection from a telephone connected to an RJ11 port on the module to a wired channel connected to a backup RJ11 port on the module. Detection for power outage is by comparing the device voltage with a reference voltage, and detection for broadband connection is by sending out a PING packet and waiting to see if a return packet is received.

REFERENCES:
patent: 5414342 (1995-05-01), Mammano et al.
patent: 5666045 (1997-09-01), Grodevant
patent: 6711160 (2004-03-01), Chan et al.
patent: 2002/0116464 (2002-08-01), Mak
patent: 2008/0195727 (2008-08-01), Diomelli

Affiliated with

Also associated with

Rating

Voice over IP auto-switching/backup for emergency calls 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 over IP auto-switching/backup for emergency calls, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voice over IP auto-switching/backup for emergency calls will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2631992