| Product Code | C3925-CME-SRST/K9 |
| Bundle | 3925 Voice Bundle w/ PVDM3-64,FL-CME-SRST-25, UC License PAK |
| Services Performance Engine module | w/SPE 100 |
| Rack Units | 3U |
| Interfaces | 3 integrated 10/100/1000 Ethernet ports with 2 ports capable of RJ-45 or SFP connectivity |
| Expansion Slot(s) | 2 service module slots
1 Internal Services Module slot 4 onboard digital signal processor (DSP) slots 4 Enhanced High-Speed WAN Interface Card (EHWIC) slots |
| RAM | 1 GB (installed) / 2 GB (max) |
| Flash Memory | 256 MB (installed) / 8 GB (max) |
| Dimensions | 47.6 cm x 43.8 cm x 8.9 cm |
