— The Session Initiation Protocol (SIP) has emerged as the preferred Internet telephony signaling protocol for communications networks. In this capacity, it becomes increasingly essential to characterize both the performance and the reliability of the signaling entities utilizing the protocol. We provide an analytical look at the performance of a SIP network as well as a reliability 							
						
							
					 															
					Vijay K. Gurbani, Lalita Jagadeesan, Veena B. Mend