www.WirelessFederation.com/news: Oman Mobile has unveiled six new filters to its mass messaging service iMass SMS. This service enables businesses and government organisations to broadcast news, offers, promotions and other information to more than 1.7 million Oman Mobile subscribers. The service was launched in 2004. Currently, the subscribers are able to send iMass SMS randomly to either postpaid, prepaid or both categories. With the new service, customers now have the ability to narrow down their target audience and send between 5,000 and one million messages.