The Cisco VWIC3-4MFT-T1 Voice Wideband Interface Card is a four-port Multiflex module designed to install in Cisco routers to carry voice wideband interfaces. This 3rd‑generation VWIC3 card is identified by Cisco part numbers 800-34654-01 and 74-13423-01. The model name VWIC3-4MFT-T1 denotes a T1-based, four-port wideband interface card in Cisco's Multiflex lineup.
