VWIC3-2MFT-T1/E1 Cisco 2 port T1/E1 Multiflex Trunk Card

Cisco VWIC3-2MFT-T1/E1 – 2‑Port Multiflex Trunk Voice/WAN Interface Card (T1/E1)

The Cisco VWIC3-2MFT-T1/E1 is a dual‑port T1/E1 Multiflex Trunk Voice/WAN Interface Card designed for ISR G2 and select Cisco routers. It supports data, voice, and video services on a single platform, enabling flexible deployment of T1/E1 WAN connectivity, channelized services, and digital voice trunks. As part of the third‑generation VWIC family, it delivers improved performance, higher density, and enhanced clocking for converged branch and enterprise environments.

🔧 Key Specifications

• Interfaces: 2x T1/E1 RJ‑48C ports
• Modes Supported: T1, E1, Channelized T1/E1, PRI, CAS
• Voice Support: ISDN PRI, CAS, channelized voice
• WAN Support: HDLC, Frame Relay, PPP, MLPPP
• Channelization: Up to 48 channels (T1) or 60 channels (E1)
• Clocking: Improved network clocking with enhanced jitter tolerance
• Compatibility: Cisco ISR G2 platforms (29xx, 39xx series)
• Hot‑swap: Supported on capable router platforms

🧩 Ideal Use Cases

• Enterprise voice gateways requiring PRI or channelized T1/E1 trunks
• Branch WAN connectivity using T1/E1 circuits for data or MPLS access
• Unified communications deployments integrating PSTN or PBX systems
• Legacy TDM migrations needing flexible voice/data coexistence

⚙️ Licensing & Platform Features

• Supported on Cisco IOS with voice, data, and security feature sets
• Integrates with Cisco Unified Communications Manager and CUBE
• PRI, CAS, and channelized voice features enabled with appropriate IOS licensing
• Fully interoperable with VWIC2/VWIC3 architecture for mixed deployments