Datasheet

Cisco Systems, Inc.
All contents are Copyright © 1992–2001 Cisco Systems, Inc. All rights reserved. Important Notices and Privacy Statement.
Page 6 of 10
Service providers can deliver a managed VoIP service to their customers by taking advantage of the Cisco 1700 combined
with the WIC-1SHDSL. This solution enables interoffice voice calls to be sent across the DSL network and thus avoid the
long-distance toll charges incurred from a long-distance carrier, local exchange carrier (LEC), or Post, Telephone, and
Telegraph (PTT). Customers lease an ATM virtual circuit between one or multiple sites and use VoIP over DSL to pass
intranet voice traffic between sites.
Scenario 4—Back-to-Back Deployment in a Campus Environment
Figure 5
Back-to-Back G.shdsl Deployment in a Campus Environment
Many businesses today require data and voice connectivity between multiple buildings in a campus environment. Often
copperwire isthe only means to interconnect each facility to the campus mainbuilding. G.shdsltechnology allows customers
to link up two Cisco 1700s with WIC-1SHDSL cards back to back over standard 26 AWG telephone wire and provide up
to 2.3-Mbps WAN connectivity between the two facilities. This setup allows for the deployment of data, voice, and video
over the existing copper wire infrastructure without a costly infrastructure upgrade. Multiple WIC-1SHDSL pairs can be
used to allow for additional bandwidth between each facility.
G.shdsl WIC Business Class DSL Features and Benefits
Table 2 Features and Benefits Summary
Feature Benefits
Flexibility
Cisco IOS Software Support • Required (base IP/DSLimage [‘y7’ image]); all Plus images alsosupport DSL; a Plus
image must be used for IP QoS map to ATM CoS features (enhanced QoS features)
Provides the industry’s most robust, scalable, and feature-rich internetworking
software support using the accepted standard networking software for the Internet
and private WANs. Is part of the Cisco end-to-end network solution (including
multiprotocol routing [IP, Internetwork Packet Exchange (IPX), AppleTalk, IBM/
Systems Network Architecture (SNA)] and bridging).
Integrated Voice and Data Networking
Voice and Data Integration • Reduces long-distance toll charges by allowing the data network to carry interoffice
voice and fax traffic
• Works with existing handsets, key units, and PBXs, eliminating the need for a
costly phone-equipment upgrade
• Supports ATM CoS features
• Supports IP QoS features
Advanced QoS Features • Offers mapping of IP QoS to ATM CoS features
• Supports LLQ (PQ/CBWFQ), DiffServ, MLPPP with LFI, CAR, and WRED
Digital Voice Interfaces • Provide toll-quality, award-winning derived VoIP
Building A
Building B Building C
Existing Copper
Wire Infrastructure
Internet
Main Building