SIP User Agent is a logical entity at VoIP endpoints capable of initiating and answering calls between peers. SIP user agent consists of User Agent Client (UAC)and User Agent Server (UAS). (Product Overview - January 1, 2001)
TechTarget provides enterprise IT professionals with the information they need to perform their jobs
- from developing strategy, to making cost-effective IT purchase decisions and managing their
organizations' IT projects - with its network of
technology-specific Web sites, events and magazines