Cisco NM-HD-2V | 2-Ports High Density Voice/Fax Network Module

1. Compatibility: Cisco 2600, 2600XM, 2691, 3600, 3700, and 3800 Series Routers
2. Voice Interface: Two-port voice/fax network module
3. Voice Compression: G.711, G.723.1, G.726, G.727, G.729A/B, iLBC, and GSM-FR
4. Fax Compatibility: T.37, T.38, and Cisco Fax Relay
5. Echo Cancellation: G.168 64-ms echo cancellation
6. Network Interfaces: Two 10/100 Fast Ethernet ports
7. DSP Resources: Two onboard digital signal processor (DSP) slots
8. Maximum Calls: Up to 60 simultaneous voice calls
9. Power Consumption: 6W maximum
10. Dimensions: 3.25 x 7.1 x 0.8 in. (H x W x D)
11. Weight: 0.4 lbs
12. Operating Temperature: 32 to 104°F (0 to 40°C)

Helpful notes:
1. The NM-HD-2V module provides high-density voice and fax connectivity for Cisco routers.
2. The module supports a wide range of voice compression algorithms, making it suitable for various voice applications.
3. The two onboard DSP slots allow for additional voice processing capabilities, such as conferencing and transcoding.