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CISCO
CISCO 4PT VOICE I/F CARD FXO UNIV

CISCO CISCO 4PT VOICE I/FCARD FXO UNIV

Cisco - Voice interface card - plug-in module - FXO / 4 analog port(s)
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Cisco Voice Gateway Router Interoperability with CallManager


Cisco® 1700, 2600, 2800, 3700, and 3800 series integrated access routers from Cisco Systems® can be deployed as voice gateway routers as part of the Cisco IP Communications solution. New and existing deployments can benefit by using Cisco 1700, 2600, 2800, 3700, and 3800 series routers as voice gateways with Cisco Unified CallManager.

Cisco 1700 (including Cisco 1751 and 1750 routers), 2600, 2800, 3700, and 3800 series voice gateway routers communicate directly with Cisco Unified CallManager, allowing for the deployment of IP telephony solutions that are ideal for large enterprises and service providers that offer managed network services. The Cisco 1700, 2600, 2800, 3700, and 3800 series voice gateway routers provide a highly flexible and scalable solution for small and medium-sized branches and regional offices.

The Cisco 1700, 2600, 2800, 3700, and 3800 series voice gateway routers support the widest range of packet telephony-based voice interfaces and signaling protocols within the industry, providing connectivity support for more than 90 percent of the world's private branch exchanges (PBXs) and public-switched-telephone-network (PSTN) connection points. Signaling support includes T1/E1 Primary Rate Interface (PRI), T1 channel associated signaling (CAS), E1-R2, T1/E1 QSIG protocol, T1 Feature Group D (FGD), Basic Rate Interface (BRI), foreign exchange office (FXO), ear and mouth (E&M), and foreign exchange station (FXS). These voice gateway routers can be configured to support from 2 to 540 voice channels.

As enterprises seek to deploy an expanding list of IP telephony applications and services, Cisco 1700, 2600, 2800, 3700, and 3800 series voice gateway routers-interoperating with Cisco Unified CallManager-provide a solution that will grow with their changing needs.

INTEROPERABILITY USING SIP, H.323, OR MGCP

The Cisco 1700, 2600, 2800, 3700, and 3800 series voice gateway routers can communicate with the Cisco Unified CallManager using Session Initiation Protocol (SIP), H.323, or Media Gateway Control Protocol (MGCP):

  • In SIP and H.323 mode, the Cisco 1700, 2600, 2800, 3700, and 3800 series voice gateway routers communicate with Cisco Unified CallManager as an intelligent gateway device.
  • In MGCP mode, these routers operate as a stateless client, giving Cisco Unified CallManager full control. Dial plans are configured centrally in Cisco Unified CallManager. Voice gateway routers can then be automatically configured by a download of Extensible Markup Language (XML) files.

IP TELEPHONY PHASED MIGRATION

The Cisco 1700, 2600, 2800, 3700, and 3800 series voice gateway routers help users immediately deploy an end-to-end IP telephony network architecture or gradually shift voice traffic from traditional circuit-switched networks to a single infrastructure carrying data, voice, and video over packet networks.

Initially, customers can use these voice gateway routers to interconnect older PBXs over the packet infrastructure and still maintain PSTN (off-net) connectivity through their circuit-switched PBXs. Later, customers can migrate PSTN (off-net) connectivity to the voice gateway routers and start to incorporate IP phones at larger sites (Figure 1). After all sites are running IP telephony, users can begin deploying IP-based applications such as IP unified messaging, personal assistants, and extension mobility.

The Cisco 1700, 2600, 2800, 3700, and 3800 series voice gateway routers are an ideal solution for circuit-switched PBX and PSTN access within a Cisco Unified CallManager-based IP telephony architecture.

CISCO VOICE GATEWAY ROUTER FEATURES AND BENEFITS

Simple Administration

  • Provides centralized administration and management
  • Helps enable administration of large dial plans
  • Provides a single point of configuration for a Cisco IP Telephony network

Availability

  • Provides for Cisco Unified CallManager redundancy; if a primary host Cisco Unified CallManager fails, call control fails over to the next available Cisco Unified CallManager server
  • Branch survivability using SRST when connection to the Cisco Unified CallManager cluster is lost

Scalability

  • Meets enterprise office requirements of small offices to large corporations
  • Scales up to 30,000 users per cluster with Cisco Unified CallManager clustering

Investment Protection

  • Provides a modular platform design with a growing list of more than 90 interface combinations
  • Allows users to increase voice capacity while taking advantage of their existing investments in Cisco 1700, 2600, 2800, 3700, and 3800 series routers

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