The responsiveness from them regarding our system is unsurpassed. - It has been two months since we got our new phone system and although we are still figuring out the different features, the service and support from World Telecom is exceptional. Whenever I have a question about a feature, I email Glen and he will either email or call me immediately or even show up on-site. The responsiveness from them regarding our system is unsurpassed. World Telecom is a professional and reliable company whose customer service deserves an A+ rating.