2-port T1/E1 multiflex trunk (MFT) voice/WAN interface card (multiflex VWIC), which support data and voice applications in Cisco multiservice routers. The multiflex VWIC combines WAN interface card (WIC) and voice interface card (VIC) functionality to provide additional flexibility in by supporting T1, fractional T1, E1, and fractional E1 for both voice and WAN applications.