Understanding Voice over IP Signaling Protocols in Cisco Telephony Implementations

Understanding the specific functions Voice over Internet Protocol (VoIP) signaling protocols perform plays a critical role in designing, building, maintaining, and troubleshooting a Cisco VoIP implementation. Each protocol also plays a direct role in implementing different features, services, technologies, as well as in product selection and integration. Specifically, Cisco has predominately implemented the following five different signaling protocols amongst their rapidly expanding telephony product line:...