Graciela Tiscareño-Sato (grace.tiscareno-sato@siemens.com) is senior global marketing manager for unified communications with Siemens Enterprise Communications. An insightful speaker and business technology writer, she has a unique global perspective on how and where UC solutions, architected on SOA, are being successfully implemented by organizations around the world. For more information on SOA applications from Siemens, please visit www.siemens.com/open.