A full range of telephone services are available at UW-Madison. If you don’t find what you need at this web site, please feel free to contact Voice Services (608) 262-5544. Telephone service at UW-Madison is provided by a Centrex telephone system that allows five-digit dialing. Most telephone numbers beginning with 261, 262, 263, 264, 265, 266, 267 and 890 are part of the UW/State Centrex system.
DoIT does not sell telephone equipment, but does evaluate equipment for use
with the campus Centrex system. This approved equipment is made available through various vendors.