With the BCM 50 at the forefront of its efforts Nortel continues to push Business Communications Manager PBX development and marketing. Competitors on the watch are taking cues from Nortel's advancements. 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.