Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6456601 | Method and system to provide telephony tones and announcements in a packetized network environment | Markku Korpi, Rudolph Bitzinger, Shmuel Shaffer | 2002-09-24 |
| 6456618 | Method and apparatus for DTMF signaling on compressed voice networks | Eli Jacobi, Shmuel Shaffer, William J. Beyda, Leroy Gilbert | 2002-09-24 |
| 6385192 | Method and apparatus for DTMF signaling on compressed voice networks | Eli Jacobi, Shmuel Shaffer, William J. Beyda, Leroy Gilbert | 2002-05-07 |