VoIP with Emphasis on SIP Part 2: Technical Deep Dive, Voice & Call Quality and Security
Course ID
P-VOIPADV1
Duration
2 day(s)
Aimed At
IT and telecom professionals who are responsible for designing, implementing, and managing converged voice/data networks will benefit from this advanced tutorial.Prerequisites
The participants should possess a couple of years of IT and/or telecommunications experience and familiarity with IP networks and protocols.Course in a Nutshell
Historically, voice and data networks have evolved separately, the former using circuit-switching technologies; and the latter, packet-switching. However, the Digital Signal Processing (DSP) advances of the past decade have ushered in a new era where fixed and mobile wireless telephony, telecommunications and broadcast multimedia, audio and video, tele- and video-conferencing, and many other applications are all “converging” onto a single IP-based data networking infrastructure. We designed this advanced networking course for those with some prior exposure to VoIP concepts who wish to gain an in-depth understanding of the elements and architecture, management, maintenance, and security of a converged network. This course, along with its prequel, P-VOIP1, intended to meet the requirements of the CompTIA Convergence+ certification, will help you take advantage of the growing demand for VoIP professionals.Course Outline
Introduction: Reviewing the Networking Basics
- Origins of the ISO (International Organization for Standardization)
- The OSI Reference Model and Converged Networks
- The Seven Layers of the OSI Reference Model
- Network Models
- Centralized vs. Decentralized Networks
- Branch-Edge Network Solutions; Edge Routers and Switches
- Network Flattening vs. Tier Networks
Networking Components and Architecture
- Hardware Components as Used on a Converged Network
- Routers (Multimedia Routers)
- Switches (Managed, Unmanaged)
- Differences between a Hub and a Switch
- Store and Forward
- Cut Through
- Fragment Free
- Adaptive Switching
- Servers
- Gateways
- TDM / IP Gateway
- SIP Gateway
- H.323 Gateway
- Gatekeepers
- PBX (TDM, IP Only & Hybrid): Key Systems
- Private Branch Exchange or PBX
- Hosted PBX
- PBX Market Segments
- MCU: Multipoint Conferencing Unit
- Firewall
- CSU/DSU: Channel/Data Service Unit
- NT1
- Traffic Shapers
- Session Border Controller
- Session Border Controllers and Regulatory Issues
- In-line Power Components (Power over Ethernet)
- Power over Ethernet (PoE) Modes
- Wireless Access Points and Wireless Routers Using NAT
- Modems (e.g., Cable, DSL)
- Dial Up Modems
- DSL: Digital Subscriber Line
- Cable Modems
Management, Maintenance, and Security
- Trouble-Ticketing Process
- Log the Problem
- Confirm the Problem
- Troubleshoot the Problem
- Troubleshooting Connectivity Problems
- Escalate if Required
- Close the Log
- Symptoms of Converged Network Problems
- Poor Voice Quality
- No Dial Tone
- Loss of Feature Sets
- Converged Network Problems
- Bandwidth Restrictions
- Media Errors, Data Loss, Packet Loss and Rerouting
- Protocol Mismatch
- Jitter
- Hardware Failure
- MTU Issues
- QoS Tags Being Dropped
- Tools and Commands to Monitor Network Performance in a Converged Environment
- Simple Network Management Protocol (SNMP)
- Remote Network Monitoring
- Ping
- Pathping
- Traceroute
- QoS Monitoring Tools
- Bandwidth Monitoring Tools
- Data Analyzers and Protocol Analyzers
- WAN Monitoring Tools
- Voice/Video Quality Monitoring Tools
- Traffic Management
- Quality of Service (QoS) and Router Parameters
- Load Balancing
- Traffic Shaping
- Leaky Bucket Traffic Shaping
- Token Bucket Traffic Shaping
- MOS (Mean Opinion Score)
- Monitoring Log File
- Reporting and Managing Configuration Changes
- Admission Controls
- Registration
- Registration and Emergency Services
- MAC (Moves, Adds, Changes)
- Call Detailed Records
- Concepts and Components of Security Design and How They Affect the Converged Network
- Firewalls
- Authentication
- Proxies
- VPN: Virtual Private Network
- Site-to-Site VPN
- Remote Access VPN
- Network Address Translation (NAT) and Port Address Translation
(PAT)
- Encryption and Encryption Primary Functions
- Intrusion Detection System
- Protocol and Application-based Intrusion Detection Systems
- IDS and Firewall Comparisons
- IPS (Intrusion Prevention System)
- Network-based IPS
- Computer Viruses and Antivirus Recommendations
- VLAN (Separation of Voice, Video and Data); Demilitarized Zone (DMZ)
- Wrap-up: Course Recap, Q/A, and Evaluations
