The most inexpensive ISDN simulator on the market. The unit has two S/T and two U BRI ports allowing ISDN basic rate terminal equipment to be connected together just as if they were connected through the ISDN network.   This way you have flexibility to use eitehr S/T or U unlike most other switches that support only one or the other.  These units are brand new with a one year warranty!
Switch Type
National ISDN (basic-ni1)
NET3 (basic-net3)
5ESS Custom (basic-5ess)
DMS-100 (basic-dms100)
Leased Line

Number of Ports
2 S/T or U BRI Ports

Interface type
S/T Interface
RJ45 8-pin modular connector
Maximum Cable Drop: 400 feet (using 24 gauge copper wire)

U Interface
RJ45 8-pin modular connector
Maximum Cable Drop: 18,000 feet (using 24 gauge copper wire)

Numbering Options
User defined Phone and SPID numbers

Special Features
Connect and test calls with just one
terminal connected using Loopback Mode.
Hunt Groups
Support for SPID numbersUser Interface
Serial Port - DB9

Supplementary Services
Called/Calling Line ID Presentation
Subaddressing
High/Low Layer Compatibility
Multiple Subscriber Numbers

Operating Environment
Windows 95/98/NT4/2000
Note: PC only required for setup of required configuration