It was a pleasure speaking with you today on the phone and as promised, I am enclosing literature on our [products]. Upon your request, I will be happy to get together with you to explain the functions and features of each [product] to assist you in your decision making process. Thank you for the courtesies you extended during our telephone conversation. I hope that [Company] can assist you with your requirements. If you have any further questions, please call (555)-555-5555 extension 213.