Cisco NM-HDV-1J1-30E

The Cisco NM-HDV-1J1-30E is a network module designed for Cisco 2600, 3600, and 3700 series routers. It is a voice and fax network module that provides digital voice and fax connectivity for these routers. The module supports one digital voice interface (T1/E1) and can handle up to 30 channels of voice or fax calls. It is commonly used in voice-over-IP (VoIP) and unified communications deployments to enable voice services on the router.