NOS Communications is a leading provider of integrated telecommunications services to small- and medium-sized businesses. The company provides various services that include toll-free service, international and domestic calling, calling cards and outbound services. The company offers various programs that include call area allowing and blocking and customized summary programs. It serves various companies, including the Aviation Unlimited Aircraft Sales, Keller Williams Realty, Sam Wilde and Sheckla. Additionally, it provides various services that include voice and fax mails, speed and sequential dialing, conference calling and customized card numbers. The company s Web site provides online registration to its customers. It is located in Las Vegas.