Cisco AS5850 Manual do Utilizador descarregar pdf (Página 5)

Power Management

Redundant load-sharing DC PEMs are standard on the Cisco AS5850 Universal Gateway. Voltage and current levels on each PEM can be

monitored at the ERSC console, and alarms for voltage and current thresholds are available for use by an element management system. The

DC PEMs provide over and under voltage and over current protection as well as reverse voltage protection and DC power conditioning.

Regulatory Compliance

The Cisco AS5850 Universal Gateway complies with Network Equipment Building Standards (NEBS) Level 3 requirements, as defined

by Telcordia SR-3580; and European requirements, as defined by the ETSI.

Rich Protocol Support

The Cisco AS5850 Universal Gateway takes advantage of the full-feature richness and strong IP capabilities of Cisco IOS Software. The

gateway was optimized for service-provider IP networks as well as large enterprises. In addition, it fully supports the specialized needs of

AOL dialup services through Point-to-Point Protocol (PPP), Layer 2 Tunneling Protocol (L2TP), or TCP Clear connections. Through its

support of all IP routing protocols, the Cisco AS5850 integrates easily into any service provider’s aggregation layer.

V.92 and V.44 Support

V.92 and V.44 are the latest modem standards to be adopted by the industry. The standards specify a set of features that allow modems to

mimic many of the benefits of broadband:

●

V.44 increases throughput by more than 100 percent when surfing the Internet.

●

V.92 Modem on Hold suspends an Internet session to place or receive a phone call.

●

V.92 Quick Connect provides a faster connect time to the Internet.

Service providers can offer revenue-generating services and increase subscriber retention with V.92 and V.44 standards. Cisco RADIUS

support for Modem on Hold allows premium subscribers to suspend their Internet sessions for longer periods of time to place or receive

phone calls. Quick Connect saves the line conditions of the last number dialed, encouraging subscribers to dial into the same Internet

service provider (ISP) to reduce connection time. Combined with greater compression and connection speeds, V.92 and V.44 allow

service providers to offer their subscribers a “broadband-lite,” which enables Internet users to experience the qualities usually associated

with broadband for the price of dialup or modem access.

Packet Telephony

The framework for voice services on the Cisco AS5850 Universal Gateway is based on open interfaces and standards, and it allows an

ecosystem of partners to work together to develop innovative network services.

Service providers are not locked into a single VoIP signaling technology when they choose the Cisco AS5850 because H.323, SIP, and

MGCP support are all built in, allowing service providers to enable the call control protocol that is the best fit for their networks today,

with confidence that they can respond to evolving market requirements whenever necessary.

H.323

Leading the industry through the adoption of new standards-based H.323 technology, the Cisco AS5850 Universal Gateway supports the

scalability enhancements introduced in H.323 Version 3 and H.323 Version 4. For example:

●

Multiple concurrent calls can be supported over a single H.225 call signaling channel to reduce call-setup and call-clearing times

and increase network call capacity.

●

H.225 messages can be transported over TCP or User Datagram Protocol (UDP) as described in H.323 Annex E. Using UDP for

call signaling transport effectively enables media cut-through in a single round trip.

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Data Sheet 1
Violation logging 14

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