Cisco Cisco Voice Interface Cards Guía De Instalación
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Cisco IOS Release 12.4(20)T
OL-14874-01
Connecting Cisco 2-Port E&M Voice Interface
Cards
Cards
Revised: January 11, 2008, OL-14876-01
Overview
This document provides an overview of Cisco interface cards and explains how to install the Cisco 2-port
E&M voice interface card (VIC3-2E/M). It contains the following sections:
E&M voice interface card (VIC3-2E/M). It contains the following sections:
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For an overview of Cisco interface cards used for Cisco access routers, see the
document.
2-Port E&M Voice Interface Cards
This section describes E&M voice interface cards and how to them to a network. It contains the
following sections:
following sections:
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Cisco voice interface cards (VICs) support voice technologies. VICs can be installed in interface card
slots on supported Cisco access routers or in 1- or 2-slot voice network modules that are installed in
network module slots on supported Cisco access routers.
slots on supported Cisco access routers or in 1- or 2-slot voice network modules that are installed in
network module slots on supported Cisco access routers.
RecEive and transMit (E&M) is a signaling technique for 2-wire and 4-wire telephone and trunk
interfaces. The E&M interface typically connects remote calls from an IP network to a PBX. The Cisco
2-port E&M voice interface card is shown in
interfaces. The E&M interface typically connects remote calls from an IP network to a PBX. The Cisco
2-port E&M voice interface card is shown in