(Telecompaper) Belgian operator Mobistar and its sister company Orange Luxembourg announced a new service for seamless calls when crossing the Belgian-Luxembourg border. In what the operators say is a first in Europe, their customers will be able to travel across the border without dropping a call, as the connection is transferred automatically between the respective networks. Calls transferred across the border will also stay at the customer's domestic rate, with no surcharge for roaming. Mobistar said it expects around 60,000 customers to make regular use of the service.