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Cisco VoIP Gateways and Access Servers

Cisco AS5300.jpgThe Cisco family of Access Server and Universal Gateways are intended for telecommunication carriers and other Service Providers, as well as large enterprises. They are scalable and can support from one channelized T1 to five channelized T3’s of voice and/or data traffic, depending on the model. Cisco’s family of Access Servers and Universal Gateways are as best in the areas of voice quality, latency, and bandwidth requirement (based on Mier Communications test rating of the voice-over-IP gateway capabilities of the Cisco AS5300/Voice Gateway). Cisco’s family of Access Servers/Gateway offers exceptional cost reducing carrier class solutions for your telephony network.

The Cisco VOIP Gateway converts TDM traffic from the Public Switched Telephone Network (PSTN) into either H.323- or Session Initiation Protocol (SIP)-based VoIP traffic. Gateways are considered intelligent endpoints, and can provide billing, alarming, built-in interactive voice response (IVR), routing, digit manipulation, and security. They can also support a wide variety of PSTN protocols, such as foreign exchange office (FXO), foreign exchange station (FXS), Primary Rate Interface (PRI), channel-associated signaling (CAS), R2, Qsig, and Signaling System 7 (SS7). Cisco voice gateways can support both origination and termination.

When equipped with voice feature cards (VFCs) and voice-enabled Cisco IOS software, Cisco’s family of Access Servers and Voice Gateway products support carrier-class VoIP and fax over IP services. Cisco IOS (Internetworking Operating System) software offers a powerful array of quality-of-service (QoS) mechanisms, variable frame sizing, and standards-based H.323 controls, which provide industry-leading voice quality and call control routing to deliver improved services to your telecommunications network. In addition to being H.323 compliant, the Cisco’s Voice Gateway support a family of industry- standard voice CODECs and utilizes echo cancellation and voice activity detection (VAD)/silence suppression. Cisco offers a progressive interactive voice response (IVR) application that provides voice prompts and digit collection in order to verify the user and identify the call destination. All these features offer your enterprise absolutely the best solutions for your business telephone communication needs.

Users of Cisco’s exceptional family of Access Serves/Voice Gateways can readily interface with Public Switched Telephone Network (PSTN) digital switches or PBXs, and existing RADIUS authentication and billing servers. Cisco’s family of Access Servers/Gateway offers exceptional cost reducing carrier class solutions for your telephony network.

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What is a VoIP Gateway? Short for “Voice over Internet Protocol,” VoIP is a family of technologies that enable voice communications using IP networks. VoIP Gateways or Media Gateways are network devices that convert voice, fax, and other incoming calls between the public telephone network and an IP network. With a minimum of one Ethernet and telephone port yet expandable to fit the needs of any network configuration, gateways translate the varying coding techniques allowing companies to seamlessly communicate with other parties across other networks (VoIP or a standard phone service). Check out our complete inventory of tested Used AS5300 to take advantage of this cost-saving technology! Want a more expansive explanation of how VoIP works? Check out UCSB’s overview of VoIP Gateways.