Session Initiation Protocol references on wikipedia
Session_Initiation_Protocol The Session Initiation Protocol (SIP) is a signalling protocol, widely used for setting up and tearing down multimedia communication sessions such as voice and video calls over the Internet. Other feasible application examples include video conferencing, streaming multimedia distribution, instant messaging, presence information and online games.
GSM Cell Phone and 3G UMTS Networks | 3GAmericas.org
3G Americas connects over 3 Billion customers with GSM technologies: GSM, GPRS, EDGE and UMTS/HSPA. 3G Americas promotes the seamless deployment throughout the Americas of GSM and its evolution to 3G cell phone networks.
java.net - The Source for Java Technology Collaboration
This is where Java[TM] technology collaboration happens. java.net is a new central meeting place for developers and Java technology enthusiasts to collaborate on projects, share ideas, and create the next big thing. Whether your project is industry
Home Page - SIP/VoIP/IMS/FMC research, eLearning and certification (CD based Training)
VoIP,IMS,SIP Training and Certification for Voice over IP (VoIP) engineers and managers