| Platform | Max Phones | Max DN | Flash/RAM | License |
|---|---|---|---|---|
| 2801 | 24 | 120 | 64/256 | FL-CCME-SMALL |
| 2811 | 36 | 144 | 64/256 | FL-CCME-36 |
| 2821 | 48 | 144 | 64/256 | FL-CCME-MEDIUM |
| 2851 | 96 | 288 | 64/256 | FL-CCME-96 |
| 3725,3745 | 144 | 500 | 64/256 | FL-CCME-144 |
| 3825 | 168 | 500 | 64/256 | FL-CCME-168 |
| 3845 | 240 | 720 | 64/256 | FL-CCME-240 |
| IOS Version | CUCME Version |
|---|---|
| 12.4(9)T | 4.0 |
| 12.4(11)T | 4.0(2) |
| 12.4(4)XC | 4.0(3) |
| 12.4(11)XJ | 4.1 |
| 12.4(15)T | 4.1 |
| 12.4(11)XW1 | 4.2 |
| 12.4(15)XY | 4.3 |
| Features | CUCME 4.2 | CUCME 4.1 | CUCME 4.0(1) | CUCME 3.3 |
|---|---|---|---|---|
| Extension Mobility | ✔ | |||
| Media Security | ✔ | |||
| Presence with BLF status | ✔ | ✔ | ||
| Video | ✔ | ✔ | ✔ | |
| Phone Security | ✔ | ✔ | ✔ | |
| Local MOH | ✔ | ✔ | ✔ | ✔ |
| SIP phone support | ✔ | ✔ | ✔ | |
| SCCP phone support | ✔ | ✔ | ✔ | ✔ |