/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: maximtretyakov35 https://cdn.slidesharecdn.com/profile-photo-maximtretyakov35-48x48.jpg?cb=1523582049 Over 20 years of work experience in the wireless telecommunication industry in sales and R&D in several countries