Cisco 2600XM Series Информационный лист - Страница 4
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Integrated Voice and Data over DSL
Service providers and enterprise customers alike continue to expand deployment of voice services to remote customers. While
more traditional technologies require separate data and voice systems, advanced QoS mechanisms merged with
high-bandwidth WAN links like DSL make it possible to effectively combine voice and data traffic in the same WAN
connection without sacrificing quality or reliability. Traffic management is key for this type of deployment. The Cisco
2600XM Series with a DSL WAN Interface Card currently supports a variety of ATM QoS mechanisms and IP QoS
mechanisms, providing a scalable and manageable solution for toll-quality voice transmission while still maintaining ample
data service. Specific benefits:
• Service providers increase revenue by building differentiated service options based on premium, standard, or best-effort
service classes
• Enterprise customers reduce costs and increase service offerings to their remote branch offices by delivering voice
connectivity without the high costs of dedicated voice links
Note: ADSL technology also inherently allows for the transmission of a single basic telephone service voice connection
and traditional data traffic over the same pair of wires without the need for QoS. The WIC-1ADSL supports both splitter and
splitterless (G.lite) modes for insertion into almost any ADSL environment when only a single basic phone line is needed.
Business-Class Security
The Cisco 2600XM Series can be optimized for VPNs, which allow for secure use of any shared network incorporating the
same policies and levels of security and performance as a private network. VPN security can be delivered through
hardware-based encrypted tunneling at 3DES IP Security (IPSec) speeds of up to 40 Mbps. This allows customers to deploy
ADSL or SHDSL for secure remote access to corporate networks without the high costs and limitations often associated with
point-to-point links. The 2600XM DSL bundles are equipped with extra memory to ease customers to deployment of VPN
services.
In addition, the Cisco 2600XM Series incorporate Cisco IOS Firewall technology (CiscoSecure Integrated Software)
supporting stateful firewall and intrusion detection. With an always-on DSL connection, Internet security is a critical
component in protecting corporate resources from malicious attacks.
Deployment Flexibility
Many businesses today require data and voice connectivity between multiple buildings in a campus environment. Often copper
wire is the only means to interconnect each facility to a campus' main building. G.shdsl technology allows customers to link
two Cisco 2600/3700s with WIC-1SHDSL-V2 cards back-to-back over standard 26 AWG telephone wire and provide up to
4.6-Mbps WAN connectivity between the two sites. This enables deployment of data, voice, and video over existing copper
wire without a costly infrastructure upgrade. Multiple WIC-1SHDSL-V2 pairs can be used to allow for additional bandwidth
between locations.
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