We prefer to fax. I will burn them down to a CD on occasion, but usually I fax them out. It's on the other sides dime to receive them. Time of a phone call is somewhat irrelevant (never enough to raise the phone bill).
I use a brother fax connection as well as have a 56 K modem as backup. I actually prefer to send by Microsoft fax as it keeps a more detailed record of what was sent. It's faster to send by Brother fax in setup and that's usually the way the staff does it. I don't feel strongly enough to change their modus operandi.