Waterbury Telephone Employee Federal Credit Union 84 Deerfield Ln, Meriden, CT06450 Located on Deerfield Lane off of Research Parkway, Waterbury Telephone Employee Federal Credit Union (FCU) can be…More found in the AT&T building. Membership is extended to family members who can also enjoy some of the unique services the credit union offers. Special club accounts include the Holiday Club Account, the Vacation Club Account and the Rainy Day Club. A newly installed Audio Response System (ARU) allows customers to check account balances, make transfers and change their PINs easier than ever before. The credit union also carries American Express Travelers Checks and offers a Visa Check card to members who open a checking account.