| Features | PVDM4-32U256 | PVDM4-64U128 | PVDM4-128U256 | PVDM4-256U512 | ISR4331-VSEC/K9 | ISR4451-XV/K9 | NIM-4FXS/4FXO |
|---|---|---|---|---|---|---|---|
| Voice Channels | Up to 32 | Up to 64 | Up to 128 | Up to 256 | Up to 300 | Up to 400 | Up to 4 |
| Video Support | Yes | Yes | Yes | Yes | Yes | Yes | No |
| Energy Efficient | Yes | Yes | Yes | Yes | Yes | Yes | No |
| Scalability | High | High | High | High | High | High | Low |
| Replacement Warranty | 1 Year | 1 Year | 1 Year | 1 Year | 1 Year | 1 Year | 1 Year |
| Model | Description |
|---|---|
| C3900-SPE150/K9 | High-performance service module |
| ISR-4CUBE | High-density voice interface |
| PWR-3900-AC | Redundant power supply unit |
PVDM4-32U256 Specifications |
|
| Brand | Cisco |
| Model | PVDM4-32U256 |
| Form Factor | Pluggable Module |
| Digital Signal Processors (DSPs) | 32 |
| Total Memory | 256 MB |
| Maximum Conferencing Sessions | Up to 128 |
| Codec Support | G.711, G.729, G.722, and many others |
| Voice Channels | Up to 256 |
| Hardware Compatibility | Cisco ISR G2 Routers |
| Real-Time Transport Protocol (RTP) | Yes |
| Power Consumption | Low |
| Operating Temperature Range | 0 C to 40 C |
| Storage Temperature Range | -20 C to 70 C |
| Relative Humidity | 10% to 90% (non-condensing) |
| Compliance | RoHS Compliant |
| Dimensions (H x W x D) | 0.20″ x 3.18″ x 5.20″ |
| Encryption | Secure RTP, TLS |
| Scalability | Modular, easily upgradable |
| Networking Protocols | SIP, SCCP, MGCP, H.323 |
| Installation | Hot-swappable |
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