teleconferencing equipment

Unified Videoconferencing 3522 Gateway Connecting H.323 videoconferencing systems on IP networks to H.320-based videoconferencing endpoints on ISDN networks

Cisco® Unified Communications-a comprehensive system of powerful, enterprise-class solutions including IP telephony; video-, audio-, and Web conferencing, and customer contact solutions-helps organizations achieve business success by improving operating efficiency, increasing organizational productivity, and enhancing customer satisfaction. The Cisco® Unified Videoconferencing 3522 and 3527 Gateways-integral components of the Cisco Unified Communications system- bridge the gap between the installed base of ISDN videoconferencing group and room systems and the rapidly growing world of IP-based H.323 systems. The gateways connect H.320 ISDN to H.323 IP systems by translating calls initiated from the public switched telephone network (PSTN) to their equivalent on the packet network, and conversely. Videoconference users can have media-independent worldwide connectivity, regardless of their underlying network technology, and at the same time preserve existing investments.
The Cisco Unified Videoconferencing Gateways help enable H.323 users to dial out through the gateway to establish videoconference calls at data rates ranging from 64 kbps to 2.0 Mbps. The gateways place calls over ISDN to establish a connection with a remote H.320 system or a voice-only telephone. The gateways also accept inbound ISDN calls from H.320 videoconference systems or telephones and then route those calls to an H.323 endpoint or IP-based multipoint control unit (MCU). The gateways support a variety of call routing methods for incoming calls, including interactive voice response (IVR), direct inward dialing (DID), multiple subscriber number (MSN), and Terminal Control Session 4 (TCS4).

KEY FEATURES AND BENEFITS
The Cisco Unified Videoconferencing 3522 and 3527 Gateways offer an exceptional set of features and benefits for videoconferencing users and your organization.
-Ease of use-Users employ familiar telephone-like dialing procedures to place videoconference calls, whether from the IP or the ISDN network, making it easy for employees to start using videoconferencing and reducing the need for help-desk personnel and onsite support staff. With a minimum amount of training, workers can begin to use videoconferencing and enjoy the benefits of improved productivity and cost savings resulting from reduced travel.
-High-quality video and audio-The Cisco Unified Videoconferencing 3522 and 3527 Gateways support the broad range of H.323 video, audio, and data communications standards, helping ensure high-quality video and audio during a videoconference. The gateway design is optimized to pass the audio and video directly between IP and ISDN, streamlining the process, minimizing the delay, and maximizing the user's experience.
-Affordability-Available in compact, preconfigured appliances to support even low numbers of videoconference calls, the Cisco Unified Videoconferencing 3522 and 3527 Gateways provide an economical way to connect IP endpoints to ISDN networks in small to medium-sized businesses (SMBs) as well as to networks in remote offices of large organizations. Yet these gateways can also be combined and work together, so installations can be expanded and scaled to support larger deployments.

CISCO UNIFIED VIDEOCONFERENCING SYSTEM
When used with any of the Cisco Unified Videoconferencing 3500 Series Multipoint Control Units (MCUs), the Cisco Unified Videoconferencing 3522 and 3527 Gateways facilitate multiparticipant conferences using H.323, H.320, Skinny Client Control Protocol (SCCP), or Session Initiation Protocol (SIP) endpoints, helping ensure cost-effective local and global participation for multi-location meetings.
The Cisco Unified Videoconferencing 3522 and 3527 Gateways are part of the Cisco family of videoconferencing products that also includes the Cisco Unified Videoconferencing 3545 Series gateway modules, the Cisco Unified Videoconferencing 3515 and 3545 MCU, and the Cisco IOS® Gatekeeper and IP-to-IP gateway products. In addition to integrating room-based systems, this solution facilitates video telephony and video-enabled rich-media collaboration.