Nortel Network

We provide our customers with the highest customer satisfaction in the refurbisehed Nortel network equipment, save up to 90% off list, providing the highest quality, strongest warranties and fastest delivery, most are shipped within 24 hours.

We offer new and high quality refurbished Nortel equipment to suit any budget. As a customer-centric organization, no one will work harder to exceed your expectations. Knowledge Computers provides a standard 12 month warranty, with optional coverage on networking products and servers up to 5 years.

New/Used Nortel Centrex 500, 5000, M500, M5000 Phones


Product IDDescription  Quote
NT4X34-35 NORTEL CENTREX M536 ADD ON MODULE ASH Get Quote
NT4X34-35 NORTEL CENTREX M536 ADD ON MODULE ASH Get Quote
NT4X31-03 NORTEL CENTREX M5112 PHONE TELEPHONE BLACK Get Quote
NT4X31-35 NORTEL CENTREX M5112 PHONE TELEPHONE ASH Get Quote
NT4X35-03 NORTEL CENTREX M5009 PHONE TELEPHONE BLACK Get Quote
NT4X35-35 NORTEL CENTREX M5009 PHONE TELEPHONE ASH Get Quote
NT4X36-03 NORTEL CENTREX M5209 PHONE TELEPHONE BLACK Get Quote
NT4X36-35 NORTEL CENTREX M5209 PHONE TELEPHONE ASH Get Quote
NT4X39-03 NORTEL CENTREX M5212 PHONE TELEPHONE W/DISPLAY BLACK Get Quote
NT4X39-35 NORTEL CENTREX M5212 PHONE TELEPHONE W/DISPLAY ASH Get Quote
NT4X39EA-35 NORTEL MERIDIAN / CENTREX 5209 M5209 BUSINESS PHONE TELEPHONE ASH Get Quote
NT4X41MC-03 NORTEL MERIDIAN M5208 PHONE TELEPHONE BLACK WITH DISPLAY Get Quote
NT4X44-03 NORTEL MERIDIAN M5216 PHONE TELEPHONE BLACK Get Quote
NT4X44-35 NORTEL MERIDIAN M5216 PHONE TELEPHONE ASH Get Quote
NT4X44CA-03 NORTEL MERIDIAN M5216 PHONE TELEPHONE BLACK Get Quote
NT4X44FA-03 NORTEL MERIDIAN M5216 PHONE TELEPHONE BLACK Get Quote
NT4X44MC-03 NORTEL MERIDIAN M5216 PHONE TELEPHONE BLACK Get Quote
NTBX90FA-03 NORTEL MERIDIAN M5209 PHONE TELEPHONE BLACK Get Quote
Other Product No.


M5000 Series Telephones
A1613-0000-10-07 Aastra M6320 Phone Get Quote
A1613-0000-10-20 Aastra M6320 CTI Phone Get Quote
A1611-0000-10-07 Aastra M622 Expansion Module for the Aastra M6320 Get Quote
NT4X40 Aastra M5008 Phone Get Quote
NT4X35 Aastra M5009 Phone Get Quote
NT4X41 Aastra M5208 Phone Get Quote
NT4X36 Aastra M5209 Phone Get Quote
All Centrex M5000 Phones