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ISDN Telephones

ISDN 1050  Please use the options at the bottom of this page or on the right panel to make a selection. 

 User Guides

Models and Prices

Services and Lead Times


Program a One Touch Dial Key

Change Manual Call Forwarding Destination

Change the Time and Date



  • ISDN Service is provided through Verizon.
  • Calling Number Identification is available but not Calling Name.  
  • Moves or changes require an IT Support Center ticket.
  • Relocating from or to a location supported with ISDN will require a change in telephone equipment.
  • Telecommunications is working to replace ISDN service where possible with Avaya service.  If you have questions regarding a specific location please contact us via the IT Support Center at 828-2227 (press option 2)