Cisco IIUC 1.0: VoIP Fundamentals I

This course is included in our On-demand training solution.


In order for voice to be carried across an IP infrastructure, it must be packetized. This involves taking the result of digitized voice signals and packaging it into an IP packet, which is then carried across the IP infrastructure. Signaling protocols are used to set up, maintain, and tear down calls. To choose which protocol to use, you must have an understanding of the various protocols that are compatible with a Cisco Unified Communications (CUC) system. This course explains the process of packetizing voice to enable its transmission over a VoIP network, and discusses the structures and encapsulations that are used in this process. The course also describes VoIP signaling protocols, including Skinny Client Control Protocol (SCCP), H.323, Media Gateway Control Protocol (MGCP), and session initiation protocol (SIP). Components of the switching process, including VLANs, VLAN Trunking Protocol (VTP), and inter-VLAN routing, are also covered. This course is one of a series from the IIUC 1.0 SkillSoft learning paths which cover the objectives for Cisco exam IIUC 640-460.

Target Audience

Network administrators, engineers, and managers; systems engineers; network designers; individuals seeking the Implementing Cisco IOS Unified Communications (IIUC) v1.0 certification


The skills and knowledge equivalent to those learned in Interconnecting Cisco Networking Devices Part 1 (ICND1); a working knowledge of how to configure and operate Cisco routers and switches

Expected Duration

120 min.

Course Objectives

Digital Signal Processors

  • recognize the function of a DSP and how it operates
  • Codecs

  • recognize how codecs work in a CUC system
  • VoIP Signaling Protocols

  • recognize how the SCCP, H.323, MGCP, and SIP signaling protocols work with VoIP
  • Introducing VLANs and Trunks

  • recognize the purpose and functions of VLANs, IEEE 802.1Q trunking, and VTP on Cisco Catalyst switches
  • Implementing VLANs and Trunks

  • recognize how to configure a normal-range VLAN that uses VTP and 802.1Q trunking
  • The Redundant Switched Topology

  • recognize the issues that can arise in a redundant switched topology and how they can be resolved
  • Configuring VLANs and Trunks

  • configure a normal-range VLAN that uses VTP and 802.1Q trunking