Topics Map > Other landline services > Centrex
Voice/Telephone Services - Cordless and Desktop Telephones for Centrex service
How to purchase a desktop telephone for Centrex landline service.
DoIT does not sell landline telephones for Centrex service. Telephones need to be ordered from an outside vendor through your department’s purchasing staff. For your convenience, we have listed some vendors below. You may want to contact these vendors or others for price comparisons.
- Staples is the prime vendor for office supplies, including telephones, for the University. To order from Staples Advantage, contact your department’s purchasing office or use Shop@UW.
- Grainger also sells telephones through Shop@UW.
- Graybar, 2130 W Badger Rd, Madison, WI 53713. For pricing and availability, call 800-955-1330. Let them know that you are a University of Wisconsin employee.
How to avoid cordless telephone interference problems
Some 2.4GHz cordless phones will cause interference or problems with wireless data networks. If cordless phones are needed, DoIT Network Services recommends using 900 Mhz, 2.4GHz with FHSS (Frequency-Hopping Spread Spectrum) technology, 5.8 GHz with FHSS or DECT (Digital Enhanced Cordless Telecommunications). Some phones marketed as 5.8 GHz are also transmitting a 2.4 GHz signal. If you are purchasing cordless phones, be sure to check the technical specifications. Please note that Cisco does not make cordless phones.
VoIP Phone and Equipment
VoIP phones must be purchased either through Shop@UW or as part of the VoIP Transition Process. No other equipment can be configured to work on the campus VoIP system. There are no cordless telephones that work with Cisco system.