Northern Door Communications in Sister Bay received Cellcom’s 2015 “Agent-of-the-Year” award during the firm’s annual agent meeting held last Wednesday in Green Bay. The recognition marks the 14th time in the past 23 years that Cellcom’s only five star agent serving Door County has been honored with this distinction. Located in Sister Bay for over 30 years, Northern Door Communications has been a Cellcom agent since 1990. Store owner Greg Diltz said he was honored to have, once again, received the award and credited team members Liz Hecht and Missy Siebold for the work behind the recognition.