Teleos Access Server The Access Server is Customer Premises Equipment (CPE) located in the position formerly occupied by a T1 multiplexor. The Access Server is a switch that allows simultaneous Bandwidth-On-Demand access to each of the 23 64 Kbps B channels on the PRI interface. The Teleos Access Server was designed to add value through switched access to those emerging switched digital network services. Specific interface cards are then added to the Access Server for each type of access (premises or netowrk) desired. End users no longer need to provision T1 channels among voice, data, image, and videoconferencing. Currently, network interfaces are available for T1 and PRI in all the protocol formats used by North American Inter-Exchange and Local Exchange Carriers. Premises-side interfaces are availbable for T1, PRI, BRI, IBM token Ring and V.35 (through the Teleos Escort PRI TA). A Teleos Access Server will serve as the single point of switched digital network access from teh store. Older PBXs will be connected to the Access Server via a Teleos T1 interface. An IBM 3174 Controller and a workstation will be attached to the Token Ring. All access from the store with the exception of local voice and local data calls will be via PRI. CICS applications such as Inventory, Pricing, Payroll, etc. willl run on an IBM Series 1 processor. Both the Series 1 and the Token Ring will connect to a modem sharing device for access to a 9.6 Kbps leased line for SDLC access to an IBM 3090 host processor. Credit card verifications for business customers will be directed to the Series 1 which permits access to the host. A key application driving the network architecture involes image transfer technology, which could lead to the presentation of high resolution images to the store's merchandiser to assist in selecting styles and colors of merchandise to make available in their stores. The images can reside on the file server or the mainframe at the data center. They are accessed using a high-resolution PC workstation with a graphical user interface. In trails thus far, the call setup time through the IAP6000 Access Server hs been less then two seconds. The IAP6000 Access Server at the data center haso nly a Token Ring interface on the premises side, and is connected on the network side over a direct access PRI to MCI's DMS-250. Teleos Communications has forecast that using switched digital services rather than dedicated T1 network will save about 27% in recurring monthly network operating charges for this netowrk. Note: Teleos, together with Network Software Associates (NSA), is pleased to announce the availabbility of a PC-based 3270 emulation application. This product is compatible with IBM's new 3174 Establishment Controller equipped with the recently announced Basic Rate Interface (BRI) adapter. When used with these new IBM products, the Teleos/NSA soution allows ISA bus PCs to achieve 3270 terminal access and printer in an IBM S370 or S390 environment via local or remote cluster controllers. The product solution consists of AdaptSNA 3270 Emulator software form NSA and Teleos' B101PC Terminal Adapter. Teleos Escort == Switching Interface == The Teleos Escort is a Primary Rate Interface Terminal Adapter (PRI TA) that lets you leverage the power of the switched digital network by offering access to a wide variety of high-speed switches services. These include AT&T ACCUNET Switched Digital Services (56,64,336,384, and 1536Kbps), MCI Vnet Switched 56, and U.S. Sprint VP 56. The Escort's unique Bandwith-On-Demand feature allows you to dial up network bandwidth for applications on an "as needed" basis. You pay only for the bandwidth you use and access it only when you need it, resulting in a reduction in overall transmission costs. This feature makes the Escort ideally suited for applications such as videoconferencing. The Escort supports dual standard RS366 dialing interfaces that let you access the direct dialing capabilities of video codecs. The Escort also provides an interface for serial, synchronous host communication via dual V.35 or dual RS449/RS530. Thus, by using the codec's keypad, you can easily establish a videoconference with a remote video codec. Escort options include an intergrated T1 Channel Service Unit (CSU), which allows direct connection to the T1 line without additional external equipment, and a Multi-Channel Synchronization feature, which provides the capablity to bundle 56/64 Kbps channels into n X 64 increments Simply put, the Escort allows you to link customers, suppliers, and strategic partner over Switched Digital Networks with the flexibility and cost efficiency of Bandwidth-On-Demand. Teleos Virtual Networking == Combining Private & Public Networks == Teleos Access Servers give corporate end users the "best of both worlds": Virtual Private Networks (VPNs) and Hybrid Private Networks (HPN). These networks deliver advance services over the more flexible and cost-effective public switched digital network. This emerging networking environment allows small and medium size businesses, as well as large corporations, to leverage the full menu of switched services for intra-and inter-enterprise networking applications. Among the advance virtual networking features enabled by an IAP6000 Access Server are multi-point. Token Ring LAN bridging, distributed image communications, video conferencing services, intra/inter-bulk file transfer, and multi-vendor PBX interconnection. For companies considering switched networking or phasing out cumbersome, expensive private networks, the new features allow users to define a virtual networking environment, mixing both public and private leased lines to optimize network management resources, costs, and network traffic for more competivite decisions-making based on information access, flow, and distribution. Virtual Networking offers the following advantages: o Just-In-Time Bandwidth Optimization Customers want dynamic bandwidth allocation on demand and want to pay for it when they need it. "Just-In-Case" based private networks do not offer this flexibility. o Information Sharing Virtual networking provides true information sharing with partners and customers by enabling simple and flexible network topologies for either vice, data networking, image, or videoconferencing. o Unlimited Network Redundancy Customers can use the built-in-redundancy of public Switched Digital Networks eliminating the need for building backup routes as required by proprietary private networks. o Choice of Carriers All major carriers offer Switched Digital Network services with an open standard switched access (i.e., ISDN PRI) enabling a global networking perspective for the first time.