Channel Banks (T1/E1) Converters (T1/E1) DACS - Digital Cross Connect DLC – Digital Loop Carriers Echo Cancellers M13 Multiplexers (T1/E1) Network and Line Interface Unit Transcoders (T1/E1)
Attenuators Fiber Optic Channel Banks DWDM Equipment Fiber Optic Multiplexers Optical Cross Connects
Circuit Packs Class 4 Routing Switches Class 5 Local Switches Memory Expansion/ Upgrades Voice Mail Systems
MANUFACTURERS
ADC/Kentrox Adtran Agilent Alcatel Cisco Coherent DiTech DSC DTS Eastern Research Larscom Lucent NEC Newbridge Noran-Tel
ADC Alcatel Cisco Fujitsu Harris Lucent Marconi NEC Nortel Redback Siecor Telco Telect
Alcatel/DSC Ericsson Harris Lucent Nortel Octel Siemens/ Stromberg