Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8611360 | System for processing a call with a TDM network and routing the call with an IP network | Daniel Sheinbein, Ellen B. Feinberg, Saul Daniel Fishman | 2013-12-17 |
| 6804344 | Telecommunication network having a VPN inter-connection to foreign exchange service | Robert R. Marchiano, Penn L. Pfautz | 2004-10-12 |
| 6252943 | Telephone network having dual gateway interconnection architecture for handling emergency services | Leticia Garcia Johnson, Eugene M. Kancianic, Maria Walsh | 2001-06-26 |
| 6148071 | Method and apparatus for providing calling features independent of the numbering plan | Albert Friedes | 2000-11-14 |
| 5905791 | Method and apparatus for providing combined communication services including local service and toll service | Anurag Goel, Nadine Guillaume, Leticia Garcia Johnson, Robert Yaeger Peters Jr., Theodore Vagelos | 1999-05-18 |
| 5311583 | International priority calling system with callback features | Albert Friedes, Diane R. Leighton, Paramdeep S. Sahni | 1994-05-10 |