INTEGRATED SERVICES DIGITAL NETWORK - PACKET SWITCHING
(ISDN - PACKET)

PRODUCT DESCRIPTION:

Packet Switching Network Services (PSNS) consists of a packet switch placed
in selected LATAs connected via 56/64 Kbps private line circuits to GTE's
ISDN Central Offices.  Interexchange Packet Carriers connect to the packet
switch to enable customers to transmit packet data traffic outside the LATA.
This service provides usage-sensitive data transport for a variety of
interactive (or bursty) data applications between two or more customer
designated locations.

Packet switch technology divides data streams into packets.  The packet
network examines, routes, and transports packets individually without
maintaining a physical path between customer locations.

Key technical capabilities of ISDN-Packet include:

-    End-to-end digital transmission over ISDN-compatible network facilities.

-    Passive bus operation - up to eight ISDN terminals on a single ISDN
     basic rate interface (BRI) line.

-    Packet-switched data over B or D channels.  B channel up to 64 Kbps.
     D channel at 9.6 Kbps.

-    X.25 packet multiplexing over B channels; i.e., multiple virtual D
     packet sessions on a single B channel.

For more information, call 1-800-483-4926 M-F 8am - 8pm eastern.

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