The appropriation of the new technologies is a key aspect to maintain high competitiveness in a globalized economy for telecom carriers. The benefits providedby these new technologies allow them to easily adapt to the market conditions and to satisfy the changing needs of increasingly demanding users. One of these technologiesis the JAIN SLEE specification, which presents a highly robust platformfor rapid development and deployment of new value-added services. However thehigh degree of complexity of this technology limits the exploitation of its benefitsand capabilities. In this paper, we propose a set of guidelines for value-added service development on JAIN SLEE environments based in the principles and guidelines for service creation defined in SOA, in order to facilitate this process.