1. PC Magazine article about PBX and LAN
2. Telecom Library
3. Call Center Revolution white paper from 3Com
4. Aspect telecommunications
5. Andrew Corp
6. adc telecommunications
7. Black Box
8. Dialogic Corp
9. General DataComm Industries
10. Premiere Technologies
11. Tellabs
12. ICT Group --- call center developer
13. an article about Center Force being awarded patent related to call center products