CISCO DIGITAL T1 VOICE TRUNK NETWORK MODULE FOR 2600/3600/3700/2821/11/51
MODEL: NM-HDV-1T1-24=
1x NM-HDV
1x VWIC-1MFT-T1
2x PVDM
The Digital T1/E1 Packet Voice Trunk Network Module provides a flexible and scalable T1/E1 voice solution for Cisco 2600, 2600XM, 2811, 2821, 2851, 2691 3600, 3700 series and 3800 series multiservice Modular Access routers