Sisteer, Materna Hosting EU 2014 Roaming Regulations WorkshopParis and Dortmund, April 11th, 2013: Information and communications provider MATERNA (www.materna.com) and tier-one mobile virtual network operator Sisteer (www.sisteer.com) today jointly announce that they will host a one day workshop dedicated to 2014 EU Roaming Regulation for mobile network operators in Paris on May 6th, 2013.The objective of this workshop is to help European mobile network operators to better understand the impact that the mandatory rules of EU Roaming Regulation 111 will have when they become law on 1st July 2014. This impact will be both on the business side, with completely new strategic scenarios ...