Verizon Telecom's Integrated Optical Service is maturing, and Verizon Business continues to light ULH DWDM routes. Thanks to FCC forbearance and transport investment, the carrier is rapidly growing its position as a major wavelength contender. This report contains insight and analysis of the product or service strengths and weaknesses, list of buying criteria and how the product or service fares in each category, and a comprehensive table of product or service metrics and specifications. This report is useful for purchasers who need to evaluate products, or as a source of competitive intelligence for vendors.