|
|
The section provides lists of supported party hardware and software. You should contact your Account Manager if the system you wish to deploy is not listed below. This chapter also includes the following sections:
These sections describe the Distributed Agent Platform hardware components and the functionality they provide as part of the uOne operations.
The uOne architecture is designed to scale from small (23 ports) to very large installation configurations. uOne can conceivably handle millions of subscribers. No matter how large the system grows, all uOne hardware and software components remain essentially the same. Hardware and software components can be replicated within the system as needed to provide the desired level and scale of services.
The Gateway is a Cisco AS5300 access server with the Allegro MMOIP fax (i.e., store and forward fax) feature for fax support. Equipped with VoIP feature cards, the server can utilize the server's quad T1/E1 Public Switched Telephone Network (PSTN) interface and local area network (LAN) or wide area network (WAN) routing capabilities to provide up to a 96/120 channel gateway for VoIP packetized voice traffic. It manages delivery of a call on a DS0 to an H.323 call. Once instructed which Gateserver is to get a given telephone call for unified messaging services, the Gateway maps that telephone call from a PRI channel onto the Ethernet TCP/IP link using the H.323 protocol. The Gateway handles the call connections to and from the telephone switching equipment and provides call information such as RDNIS, DNIS, and ANI downstream to the Gateserver for use by the UM agent. VoIP used as a PSTN gateway leverages the standardized use of H.323-based Internet telephone client applications. More information on the store and forward fax feature is available at:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120xj/sf_fax
The Gatekeeper is a Cisco 36xx router. The main purpose of the Gatekeeper is to work in unison with other Gatekeepers in a widely distributed, large scale implementation. It provides H.323 call routing and distribution functions based on the dial plan for the implementation. It distributes phone calls based upon volume, network, and other load conditions, as well as performing least cost routing. For more information on Gatekeeper installation and configuration, see Configuring Voice over IP for the Cisco 3600 Series at:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/voice_c/vcprt1/vcvoip.htm
The Catalyst 2900 performs the function of Ethernet switching between the other Cisco components that are part of the uOne system. This is a "low-end" hub / switching unit (10/100 Mbit) that provides basic Ethernet connectivity between the various local components of the system. For a local installation, this unit provides the required data connections between the various hardware components included in the solution. In larger scale implementations, the Cisco 5000 series units, which possess much greater capabilities, are able to address much more complex issues and are more appropriate than the 2900 units. Obviously, for a widely distributed implementation, a wide area network (WAN) is used in conjunction with this switching hub unit to meet total connectivity requirements.
The messaging server is a Sun computer running Solaris 2.6, and the Netscape Messaging Server product version 4.1. It acts as the message storage facility for the uOne application agent. Cisco-written components also run on this server, in conjunction with the messaging server software, to provide message notification services to the appropriate Gateserver.
The directory server is a Sun computer running Solaris 2.6 and the Netscape Directory Server product version 4.0 to provide the directory services required to support the uOne application agent and environment.
Paging services are provided in DAP release 4.0 in support of new message notification services. This server is a computer running the Solaris 2.6, as well as the HylaFAX paging and fax server software—a freely distributed software program. Despite its name, the Hyla FAX is used by uOne for its paging services, not its faxing capabilities. The recommended paging server is equipped with a CentralData SCSIModemServer that houses a number of Class 2 PCMCIA modem cards in a pooled arrangement. Class 2 modems are required since the Class 1 modems do not provide the proper hardware flow control capabilities. This modem pool provides shared access to the modems used to contact and communicate with the appropriate paging service providers.
The SCSI modem server recommended for use is a self-contained set of 8 or 16 PCMCIA slots in a 19-inch rack mountable chassis. The chassis is connected to the Sun host via a single-ended SCSI 2 cable. It will accept 8 or 16 PCMCIA Type II compliant Fax/Modems. The modems are "hot-swappable" and receive an RJ11-type phone jack. The drivers that are included support the Sun Solaris operating system. The Fax/Modems can be purchased from a wide range of vendors.
(This information can be found at the Central Data's web site.)
The Gatesever is made up of the following components:
Posted: Mon Sep 25 19:17:57 PDT 2000
Copyright 1989-2000©Cisco Systems Inc.