The table below provides all OUI's that relate to Cytracom provided hardware.
| Manufacturer | Manufacturer OUI |
| Grandstream | 00-0B-82 C0-74-AD |
| Polycom | 00-04-F2 64-16-7F |
| Panasonic | BC-C3-42 |
| SNOM | 00-04-13 |
Note: D2 hardware is proprietary to Cytracom but is manufactured by Grandstream, therefore, it falls under the Grandstream manufacturer OUI section.
