Used Cisco Voice / Fax Expansion Module
Part # EM-HDA-4FXO
 Product
Description: Cisco 2600XM, 2691, 2800, 3600, 3700, 3800
Series - Four Port FXS Voice/Fax Expansion Module. The voice/fax modules
enable packet voice technologies including voice over IP (VoIP),
voice over Frame Relay (VoFR) and voice over ATM (VoATM). Cisco
voice solutions provide the means for integrating both voice and
data within a single network allowing users to take advantage of
services, such as toll-bypass, without sacrificing voice
quality. Cisco offers this four-port FXO voice/fax expansion
module for High-Density Analog Voice and Fax Network Module with
four FXS ports (NM-HDA-4FXS).
About the Cisco 3600 Series:
"Modular high-density router for dial-access or router-to-router
traffic. Supports ISDN, serial, channelized T1, digital modems,
and ATM links. Also supports voice/fax and Frame Relay" (Cisco A Beginner's
Guide Third Edition by Velte & Velte).
About the Cisco 3700 Series:
"Modular routers, targeted at branch offices. Supports Frame
Relay, ISDN, LL, X.25, ATM, fractional T1/E1, xDSL, T3/E3, HSSI
WAN protocols" (Cisco A Beginner's Guide Third Edition by Velte & Velte).
Cisco 2600XM Router Voice / Fax Feature Cards
Cisco 2691 Voice / Fax Network Modules
Cisco 2800 Voice / Fax Network Modules
Cisco 3600 Voice / Fax Network Modules
Cisco 3700 Voice / Fax Network Modules
Cisco 3800 Voice Fax Network Modules
Cisco Routers - Part Numbers Listed Alphabetically
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