Cisco Third-Generation Multiflex Trunk Voice/WAN Interface Card - Expansion module - EHWIC - T1/E1 x 1 - T-1/E-1 - for Cisco 1921, 1921 4-pair, 1921 ADSL2+, 1921 T1, 1941, 2901, 2911, 2921, 2951, 3925, 3945

The Cisco MFT VWIC3 combines WAN-interface-card (WIC) and voice-interface-card (VIC) functions to provide unparalleled flexibility, versatility, and investment protection through its many uses. Customers who choose to integrate data and voice in multiple steps preserve their investment in a T1/E1 WAN interface because the Cisco MFT VWIC3 cards can be reused in packet voice applications.

• Reduces networking lifecycle costs
• Maximizes system resources

• Reduces networking lifecycle costs
  It enables graceful migration from data-only to multiplexed data and voice to packetized voice applications, reduces training, deployment, management, and sparing inventory over single-purpose interfaces, and maximizes investment protection. It simplifies network configuration and sparing through the support of both T1 and E1 on the same card, offers multifunction support for LAN-to-LAN routing, multiplexed data and voice, and packetized voice, increases configuration flexibility and reduces cost for data applications by allowing individual ports to be clocked from independent clock sources.
• Maximizes system resources
  It increases T1/E1 port density on the supported integrated services routers-up to four T1/E1 connections with an integrated CSU/DSU in a single EHWIC slot. Also it offers easy migration to bandwidth-efficient packet voice.

The Cisco MFT VWIC3 combines WAN-interface-card (WIC) and voice-interface-card (VIC) functions to provide unparalleled flexibility, versatility, and investment protection through its many uses. Customers who choose to integrate data and voice in multiple steps preserve their investment in a T1/E1 WAN interface because the Cisco MFT VWIC3 cards can be reused in packet voice applications.