Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6650662 | Method and system for transmitting a DTMF signal with compressed voice in a packet switching network | Charles Arnaud, Claude Cesaro | 2003-11-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6650662 | Method and system for transmitting a DTMF signal with compressed voice in a packet switching network | Charles Arnaud, Claude Cesaro | 2003-11-18 |