The PVDM enhanced services modules are supported on ISRs that contain an SM-X slot - namely the Cisco 4331, 4351, and 4451 ISRs. The SM-X modules support only IP-based voice services and cannot be used for TDM applications.
Products specifications
| Attribute name | Attribute value |
|---|
| Depth | 8.11" |
| Height | 1.57" |
| Weight | 28.5 oz |
| Harmonized System (HS) code | 85176990 |
| Width | 8.54" |
| Power consumption (typical) | 50 W |