VOIP Colocation

Voice Gateway Hardware

An essential extension of Cisco Systems IP networking expertise, The Cisco AS5300/Voice Gateway relays high quality voice and fax traffic across an IP Network. This is an award-winning dialup remote access server and voice-over-IP (VoIP) gateway. When equipped with voice feature cards (VFCs) and voice-enabled Cisco IOS® software, the AS5300 supports carrier-class VoIP and fax over IP services.

Cisco IOS software offers a powerful lineup of quality-of-service (QoS) mechanisms, variable frame sizing, and standards-based H.323 controls.

Cisco IOS software provides industry-leading voice quality and call control routing to deliver enhanced features.

Mier Communications testing rates the VoIP gateway capabilities of the Cisco AS5300/Voice Gateway as best in the areas of voice quality, latency, and bandwidth requirement.

| Voice Gateway Hardware | Voice Over IP Colocation | VOIP PSTN - Phone Service l VOIP Server l

The Cisco AS5300/Voice Gateway is both H.323 compliant and supports a family of industry- standard voice CODECs. I also provides echo cancellation and voice activity detection (VAD)/silence suppression. It offers complete integrated interactive voice response (IVR) application including voice prompts and digit collection authenticating the user and identifying the call destination. Users can readily interface with Public Switched Telephone Network (PSTN) digital switches or PBXs, and existing RADIUS authentication and billing servers.

The Cisco AS5300 voice/fax feature cards are actually coprocessor cards. These cards include a powerful Reduced Instructions Set Computer (RISC) engine and dedicated, high-performance digital signal processors (DSPs) that provide predictable and real-time voice processing. This design gives the coprocessor access to the Cisco AS5300/Voice Gateway routing engine for streamlined packet forwarding. The Cisco AS5300/Voice Gateway can accept two voice/fax feature cards and can scale up to 96/120 voice connections within a single chassis.

VOIP Colocation

Cisco AS5300/Voice Gateway works well in a stacked configuration to create a single virtual dial pool for large-scale service provider applications. The award-winning AccessPath-VS3 is a preconfigured, pretested stacked solution for VoIP providing the industry's broadest family of compatible products.

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Cisco AS5300

Major enterprises and service providers have built worldwide toll-quality VoIP server colocation networks. Cisco voice technology maintains carrier-quality communications among the most intense and adverse network conditions, including packet delay and packet loss. Both packet loss and packet delay can have a significant adverse impact on speech quality.

The high end voice coprocessor design of Cisco voice gateways minimizes delay and packet loss during the voice encoding and packetization process. Cisco QoS features, including IP Precedence, Resource Reservation Protocol (RSVP), Weighted Fair Queuing (WFQ), Weighted Random Early Detection (WRED), and Multiclass Multilink PPP (MP) fragmentation and interleaving, implemented on both the voice gateways and backbone routing infrastructure, can provide a low-latency, high-reliability path for sensitive voice traffic through today's networks. In Mier Communications tests, the Cisco AS5300/Voice Gateway exhibited the lowest latency of any VoIP product—using industry-standard H.323 and G.729 CODEC. The Cisco AS5300/Voice Gateway VoIP solution typical latency clocked in their lab was only 70 milliseconds.

A broadband voice gateway is a device that allows you to make telephone calls over a high-speed Internet connection rather than through a regular telephone outlet without having to go through your computer. The device or gateway, which is about the size of a video cartridge, is plugged into your broadband DSL or cable modem. You then attach an ordinary cord or cordless telephone to the gateway and make calls just as you would with the plain old telephone system (POTS). On the Internet, your call is carried in packets using Voice over Internet Protocol (VoIP). Because the gateway bypasses your computer, you can surf the Web at the same time that you or someone else uses your Internet connection for a phone call. No software is required. The gateway can be set up with or without a network router. You can add additional phone lines from the gateway with an RJ-11 splitter. The major benefit of broadband voice service is saving money on long-distance charges, while enjoying better sound quality than afforded by a regular dial-up connection. However, there are other considerations that make it impractical as the sole telephone service in a household: unlike regular telephone service, if your Internet service is down, your phone will be down along with it, and a power outage means your phone is out as well.