Resources

http://www.vfdworld.com/techdocs/Noritake_CU20045SCPB-T28A_4x20_VFD.pdf - Just some good information, some accurate, some not.

http://www.hackcanada.com/canadian/payphones/payphone_display/index.html - Unfortunately the author wants nothing to do with people contacting him.

http://www.hackcanada.com/canadian/payphones/ - General information about pay phones

http://www.payphone.com/ - They don't sell Millennium phones, but they do sell a wide array of other phones.

http://www.cbc.ca/news/canada/hamilton/news/payphones-disappearing-but-still-a-necessity-for-many-1.1340289 - Interesting