| 7995721 |
System and method for remote access to a telephone |
N. Thomas Peiffer, Jr. |
2011-08-09 |
| 7907702 |
Communication device for visually impaired persons |
— |
2011-03-15 |
| 7818295 |
Methods for handling communication requests received for former users of a communication system |
Steven G. Mihaylo |
2010-10-19 |
| D569865 |
Voice over internet protocol device |
Toby R. Ambrose |
2008-05-27 |
| 6882641 |
Call center queue administration |
James Franklin Hewell, John Spenik |
2005-04-19 |
| 6798768 |
Multimedia call routing in an IP network |
James Franklin Hewell, John Spenik |
2004-09-28 |
| 6678359 |
Called party identification in packet switched networks |
— |
2004-01-13 |
| 6282599 |
System for providing bridging of backplane |
John Spenik |
2001-08-28 |
| 5588049 |
Method for the automatic insertion of removal of a calling number identification (CNID) blocking prefix from within a telephone number in a personal computer based telephone management system |
Greig R. Detering, James Franklin Hewell |
1996-12-24 |