Cisco AS5300 SERIES UNIVERSAL GATEWAYS AS535-8E1-210-AC データシート

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corporate site or to the Internet. Using the IP Plus features of Cisco

IOS Software, firewall functions can be enabled to protect internal

servers. Using the Enterprise Plus features of Cisco IOS Software,

desktop protocols can be enabled.

Access VPNs

The Cisco AS5350 Universal Gateway is ideally suited for providing

wholesale dial services to both large corporations and ISPs who do

not want to support their own dial pools. With Cisco IOS Software

support for VPNs, service providers can take advantage of their

existing infrastructures to deliver local dialup access for users of

enterprise networks. By providing virtual dialup solutions, service

providers can offer a full range of services closer to the remote user.

Local calls can now be placed to gain access to the core

infrastructures. Virtual dialup services not only attract more users of

this service, but because calls are terminated locally, long-distance

charges are eliminated and infrastructure costs are reduced.

VPN Provisioning and Accounting

Of importance to service providers in the VPN environment is the

need to both provision and account for the number of connections

that are allowed by VPN customers. Cisco Virtual Private Dialup

Network (VPDN) session-counting software can keep track of the

number of connections from the Cisco AS5350 Universal Gateway

to the user’s home gateway. This software is provided in Cisco IOS

Software running on the Cisco AS5350 and in the Cisco access

control server to provide comprehensive accounting and billing

information to ISPs about the virtual connections that their

customers make.

AOL Support

The Cisco AS5350 Universal Gateway offers 100 percent coverage

for dedicated AOL dial installations, as well as other services that

use the TCP Clear or autocommand Telnet method of carrying

dialup data. Domain Name System (DNS) round robin is also

supported to allow load balancing of connections across multiple

AOL hosts. The Cisco AS5350 also includes all the L2TP features

necessary to support clients with AOL 7.0 and later versions.

Cisco Voice Infrastructure and Applications

The Cisco AS5350 Universal Gateway supports Cisco Voice

Infrastructure and Applications (VIA), an ideal solution for service

providers building next-generation networks. Cisco VIA is a VoIP

solution designed to lower network costs and rapidly deliver a

multitude of revenue-generating carrier-class voice transport

services. These include: national and international transport,

prepaid and postpaid calling card services, application service

provider (ASP) termination, dial access, and voicemail/unified

communications.

The Cisco VIA solution scales easily for small and large voice

networks. Using the Cisco AS5350 and Cisco VIA, service providers

with existing data networks can quickly and easily add voice

services to their portfolios, while carriers who offer voice services

over existing TDM networks can expand their coverage more

cost-effectively. Cisco VIA extends network reach through

worldwide compatibility and operability, and is a field-proven

solution that has been deployed in more than 80 countries

worldwide.

Distributed Prepaid Calling

The Cisco Prepaid Calling Card solution gives Internet telephony

service providers a competitive advantage in the prepaid calling

market. By tapping the intelligence embedded in IP network

components, the solution allows service providers to centralize the

service application in a single location at a low cost while

bandwidth-intensive call connections are handled at the network

edge in Cisco gatekeepers and gateways. The benefit: lower costs

than traditional debit card applications, which are based on service

points in large POPs in circuit-switched networks. The prepaid

calling card solution supports IVR in different languages, so carriers

can target specific markets.

SS7 Interconnect

Using the Cisco PGW 2200 Softswitch (or a third-party SS7 gateway)

and the Cisco AS5350 Universal Gateway with integrated SLT

functionality, service providers can interconnect their data and VoIP

networks with the PSTN via SS7 links. In many countries carriers

must interconnect using SS7 to qualify for reciprocal compensation.

The Cisco PGW 2200 and Cisco AS5350 provide the interface needed

to interconnect using Q.931 over IP, allowing service providers to

enter markets previously unavailable to them because of signaling

requirements. SS7 trunks are more efficient than CAS trunks, and they

typically cost less than PRI trunks. With SS7, call setup time

decreases, increasing the amount of billable traffic carried by the

network.

Managed Voice Services

Telephony ASPs are emerging as an important market force, offering

new, hosted, enhanced IP communications services that provide

additional functionality beyond the services offered by the PSTN.

Example applications hosted by telephony ASPs include hosted IP

telephony, managed IP PBX, PC-to-phone services, unified

communications, multiservice VPN, IP contact center, IP