Elgin EBK-28 Key System Power Supply Vintage PBX KSU Telephone Equipment

mitel sx20 superswitch - Complete Cabinet, cards, etc. Working Pulled unit

Vintage 1973 NOS ITT KTU Telephone Parts Lot - Unknown What All Pieces Are For.

Mitel SX-50 MS 55 PBX Console and cards, parts only 9104-060-100

Valcom VP-624D 24 Volt DC Power Supply

Avaya IP Office 500 Digital Station Expansion Station 16 700449499

Samsung Digital Communication System

Nortel Networks Lentronics 86448-01 Data Unit-LS, FREE SHIPPING QTY