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Chapter 8. Practice with SIP > The SipStack, SipProvider and ListeningPoint - Pg. 144

144 CHAPTER 8 Practice with SIP The SIP events represent incoming messages from the network to the SIP stack. There are two types of events (Figure 8.6): RequestEvent : Represents a SIP request received from the network. ResponseEvent : Represents a SIP response received from the network. EventObject RequestEvent ResponseEvent FIGURE 8.6