Used Cisco 3600 / 3800 Expansion Modules - Voice / Fax Interface Card, Internal Enclosure, Expansion Slot Interface

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).

Part # NM-HDA-8FXS

Product Description: Eight-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 eight-port FXS voice/fax expansion module for High-Density Analog Voice and Fax Network Module with four FXS ports (NM-HDA-4FXS).

Directory of Cisco 3800 Voice Fax Network Modules

Directory of Cisco 3600 Expansion Modules