Telecommunications customer database
Geographic indicator
Months with service
Age in years
Marital status
Years at current address
Household income in thousands
Level of education
Years with current employer
Retired
Gender
Number of people in household
Toll free service
Equipment rental
Calling card service
Wireless service
Long distance last month
Toll free last month
Equipment last month
Calling card last month
Wireless last month
Multiple lines
Voice mail
Paging service
Internet
Caller ID
Call waiting
Call forwarding
3-way calling
Electronic billing
Standardized log-long distance
Standardized log-toll free
Standardized log-equipment
Standardized log-calling card
Standardized log-wireless
Log-income
Standardized multiple lines
Standardized voice mail
Standardized paging
Standardized internet
Standardized caller id
Standardized call waiting
Standardized call forwarding
Standardized 3-way calling
Standardized electronic billing
Customer category