Overview/Purpose

Now it is time to establish connections to allow phone calls to the public switched telephone network (PSTN) and branchoffices. The main focus of this chapter is constructing dial peers (the process of routing phone calls) and exploring quality of service (QoS) concepts and mechanisms.There are two types of dial peers: Voice over Internet Protocol (VoIP) and plain old telephone service (POTS). Implementing VoIP dial peers only requires an IP connection between two routers. Implementing POTS dialpeers requires either analog or digital interfaces.

Learning objectives:

• Configure physical voice port characteristics.
• Configure dial peers.
• Explore router call processing and digit manipulation.
• Implement CME class of restriction.
• Administer Quality of Service

Target Competencies:

• Manage Dial-Plans and Quality of Service (QoS)

Learning activities:

• READ Chapter 6: Understanding the CME Dial-Plan from 640-461 Official Cert Guide.
• READ Chapter 6: Cisco Unified Communications Manager Express (CUCME) Dial Plans and QoS from CCNA Voice lab manual.
• COMPLETE lab assignment: Configuring Digital Interfaces (PAT 6-1, Book Lab 6-2).
• COMPLETE lab assignment: Call Legs, Dial Peers, and Wildcards (PAT 6-2, Book Lab 6-3).
• COMPLETE lab assignment: Call Processing, Dial Plans, and Digit Manipulation (PAT 6-3, Book Lab 6-4).
• COMPLETE lab assignment: Dial-Peer Configuration Using the CLI (PAT 6-4, Book Lab 6-5). 
• COMPLETE lab assignment: Quality of Service (QoS) (PAT 6-5, Book Lab 6-7).

Assessment Activities:

• Complete and submit the required lab assignments.