... Diff-Serv, Int-Serv, and RSVP Diff-Serv, Int-Serv, and RSVP Cisco IOS® software supports two Voice QoS Implementation options: Differentiated Services (Diff-Serv) or Integrated Services (Int-Serv). ... round-trip response time and availability. • Voice-over-IP (VoIP) metrics such as jitter, packet loss, and availability of synthetic VoIP traffic. • Web metrics and applications. • Quality of Service ... Objectives Upon completion of this module, you will be able to perform the following tasks: • Explain the significance of Quality of Service (QoS) • Describe new Quality of Service (QoS) features...