Cisco GWGK 2.0 Instructor Series: Gateways and PSTN/PBX Integration

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


This course is part of Skillsoft's Instructor Series, technical courses presented in spontaneous lecture-style by subject matter experts. This is 1 of 6 of the Implementing Cisco Voice Gateways and Gatekeepers (GWGK) 2.0 series. This is an advanced course on implementing Cisco Voice Gateways and Gatekeepers in Enterprise or Service Provider environments. The goal of the course is to provide students with information and practice activities to prepare them to install, configure, monitor, and troubleshoot Cisco voice gateways and gatekeepers in enterprise installations in accord with the recommendations of Cisco's Solution Reference Network Design (SRND) for IP Telephony guides. Given a voice over IP design, the implementer will select an appropriate deployment model, correctly configure the gateways and gatekeepers, implement dial plans, and decide how to implement the most commonly offered service provider or managed services applications, features, or implementation requirements.

Target Audience

This course is a necessity for any student pursuing CCVP certification based on the Windows-based Communications Manager track.


To benefit fully from this course, students should have the following prerequisite courses/skills and or equivalent knowledge: – Cisco Voice over IP – Cisco IP Telephony – Fundamental knowledge of Cisco’s Unified CallManager Express – Conceptual understanding of PBX technology

Expected Duration

65 min.

Course Objectives

Introducing Gateways

Implementing H.323 Gateways

Implementing MGCP Gateways

Implementing SIP Gateways

Labs: Implementing SIP Gateways

Introducing PSTN and PBX Trunks

  • – Describe how a digital or analog trunk interconnects a voice gateway with a PBX or PSTN - Describe the hardware requirements for trunks including NM-HDV2 and ISR VIC options, Cisco Catalyst CMM, and DSPs - Describe DSP 549 and DSP 5510, and the impact that using either type has on services - Describe digital trunks and associated signaling on a high level - Describe the importance of clocking when using digital interfaces - Describe analog trunks and associated signaling on a high level - Describe the characteristics and requirements of PSTN trunks - Describe the characteristics and requirements of PBX trunks