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VWIC-1MFT-G703
1-Port Multiflex Trunk Voice/WAN Int. Card - G.703
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VWIC-1MFT-G703 is a WAN interface card engineered to support G.703 digital transmission protocols for reliable voice and data connectivity in enterprise and service provider networks. Designed as a modular WAN module, it offers dedicated support for G.703 applications while ensuring seamless installation in compatible Cisco routers, providing a robust solution for integrating legacy digital circuits into modern network infrastructures.
This module is ideally suited for environments that demand precise, standards-based digital connectivity and dedicated channel performance for voice and data transmissions. By enabling secure and stable WAN connections, the VWIC-1MFT-G703 proves invaluable for upgrading network interfaces and expanding the capacity of critical communication setups.
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Scenario: A distributed retail chain uses a Cisco ISR equipped with the VWIC-1MFT-G703-1-Port Multiflex Trunk Voice/WAN Interface Card - G.703 to transport both voice SIP traffic and corporate data over a single G.703 E1 circuit. By configuring the card in Multiflex Trunk mode, retailers consolidate PBX voice trunks and LAN data streams onto one leased line. Benefit: Reduces operational costs by eliminating separate data and voice circuits, simplifies network management, and enforces Cisco IOS QoS policies to maintain clear, low-jitter voice calls.
Scenario: A securities firm deploys dual Cisco routers with VWIC-1MFT-G703-1-Port cards at its trading floor to establish redundant G.703 E1 trunks to a centralized Cisco Unified Communications Manager cluster. The cards deliver sub-3 ms end-to-end latency for real-time trade execution calls and automatic failover ensures continuity. Benefit: Guarantees ultra-low-latency, regulation-compliant voice communications, seamless trunk redundancy, and centralized call control for critical financial operations.
Scenario: A national telecom provider integrates the VWIC-1MFT-G703-1-Port card into Cisco ASR 1001-X routers at POP sites to terminate TDM circuits from the PSTN. Each G.703 port aggregates up to 30 voice channels, which are transcoded and forwarded to the carrier’s SIP core network. Benefit: Delivers scalable, high-density TDM trunking, dynamic voice routing, and centralized management—optimizing network efficiency and reducing capital expenditure on legacy gateway hardware.
To get the detailed certification, please go to the Compliance Center.
 VWIC-1MFT-G703 |  VWIC3-2MFT-G703 |  VWIC3-1MFT-G703 |  VWIC2-2MFT-T1/E1 |  VWIC3-4MFT-T1/E1 | |
|---|---|---|---|---|---|
| Product Type | WAN Module / WAN Interface Card | Voice WAN Interface Card | Network Module | WAN Module | Network Module / Network Card |
| Module Type | WAN | WAN | WAN | T1/E1 WAN Module | WAN |
| Data Rate | N/A | 1.544Mbps/2.048Mbps | 1.544/2.048 Mbps | 1.544 Mbps / 2.048 Mbps | T1/E1 (1.544 Mbps / 2.048 Mbps) |
| Connector Type | N/A | Modular G.703 Connector | N/A | RJ-48 | T1/E1 Interface |
| Supported Protocols | G.703 | G.703 | G.703 | T1/E1 Framing | T1/E1 Framing and Signaling |
| Form Factor | Modular | Modular | Modular | Modular (EHWIC) | Modular |
| Operating Temperature | N/A | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | N/A | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | N/A | N/A | 3.3V | 3.3V | N/A |
| Compatibility | Cisco | Cisco Routers | Cisco | Cisco Routers | Cisco Routers |
| Max Speed | N/A | 1.544Mbps/2.048Mbps | 2.048Mbps | N/A | T1/E1 speeds |
| Supported Features | G.703 Standard Framing | G.703 framing, DS0 mapping | N/A | Digital Voice, Loopback Testing, Framing Conversion | Multi-Frame Transmission, Voice and Data Integration, Digital Signal Processing |
| Power Consumption | N/A | N/A | N/A | 5W | N/A |
| Interface Ports | N/A | G.703 | N/A | 2 x T1/E1 | 4 x T1/E1 Ports |
| Expansion Slots | N/A | VWIC Slot | N/A | EHWIC | VWIC Slot |
| Product Name | VWIC-1MFT-G703 | VWIC3-2MFT-G703 | VWIC3-1MFT-G703 | VWIC2-2MFT-T1/E1 | VWIC3-4MFT-T1/E1 |
| Height | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | N/A | N/A | N/A | N/A |
| Depth | N/A | N/A | N/A | N/A | N/A |
| Weight | N/A | N/A | N/A | N/A | N/A |
The VWIC-1MFT-G703 card is reliable and fast. It provides seamless G703 connections and supports stable data transfer across our network.
The VWIC-1MFT-G703 is perfect for handling G703 communication. It integrates easily and ensures high-speed, stable connectivity.
This product delivers excellent G703 connectivity. It integrates seamlessly and supports high-quality communication across multiple systems.
We've been using the VWIC-1MFT-G703 for months. It's reliable and ensures uninterrupted, stable data transfer in our network.
The VWIC-1MFT-G703 card provides fast, stable connectivity for G703 networks. It's easy to deploy and integrates smoothly.
The Cisco VWIC-1MFT-G703 is a 1-port Multiflex Trunk Voice/WAN Interface Card that provides G.703 connectivity for voice and data over T1/E1 networks.
The VWIC-1MFT-G703 is compatible with Cisco ISR G2 Series routers, including the 1900, 2900, and 3900 models equipped with a VWIC slot and an IOS image that supports G.703.
The VWIC-1MFT-G703 supports G.703 framing, clear-channel data, and circuit-switched voice over T1/E1, enabling both voice and WAN services on a single port.
The VWIC-1MFT-G703 supports standard G.703 data rates of 64 kbps to 2.048 Mbps (E1) or 1.544 Mbps (T1) for clear-channel applications.