Patapsco Communications designs, manufactures, markets and supports a wide range of telecommunications products for Carriers, Distributors and Corporate customers. This web site focuses on ISDN simulation, ISDN PRI and BRI conversion and testing, Drop and Insert, Least-Cost-Routing and alternate ways for Carriers to deliver multiple services to customers.
We suggest you enter the site
via the Applications page.

 
View a larger picture of the front of the Liberator unit.
 

Most information is available immediately but some detailed technical sheets and those with PRICES require you to register
on-line.

A password is immediately and automatically sent to you.
 
View a larger picture of the back of the Liberator unit.

isdn pri and bri sharing and bri to pri isdn

See Patapsco Comms
for a wider range
of products



PRI BRI ISDN connectivity diagram
Drop and Insert diagram
Carrier ISDN and E1 diagram
Product highlight brochure