TSE

Telephone Systems Efficiency, Inc. (TSE) is a National wholesale distributor of ISDN terminals, terminal adapters, NT-1s, and other related ISDN common equipment. TSE began marketing ISDN products nationally in 1994. By focusing on ISDN products exclusively, our customer base of dealers, state agencies, Bell companies, and large corporations has grown rapidly. Our reputation as one of the leading ISDN equipment suppliers in the country was built by providing quality products and reliable customer service... TSE is proud to offer high quality Refurbished ISDN Products in addition to our NEW ISDN Product line up. TSE tests, rebuilds, and stands behind its Refurbished ISDN Products 100%. We have new parts in stock from flex circuits to button kits along with refinished plastics to restore our phones to "like new" status. All of our refurbished telephones are remanufactured in house and are backed by our 1 year warranty... The TSE ISDN lab maintains state of the art equipment for testing..

Primary location: Dunbarton United States