Alianza Inc., a Lindon-based cloud voice platform company, has announced that Clark Peterson has joined its board of directors. Peterson has more than 30 years of leadership experience with telecommunications organizations. Most recently, he served as the president and then chief evangelist at Vonage Business. Peterson came to Vonage through Vonage’s acquisition of Telesphere, where he served as CEO for eight years. Peterson also serves as chairman of the Cloud Communications Alliance.