Visão Geral
Neste curso, os alunos irão rever o protocolo TCP/IP e o encaminhamento básico e cobrir elementos VoIP tais como interfaces analógicas e digitais, planos de numeração e marcação, gateways e gatekeepers, e os diferentes protocolos utilizados no funcionamento VoIP. Após a conclusão deste curso, os alunos serão capazes de abordar as principais questões de qualidade, tais como atrasos e trepidação, bem como questões de segurança, tais como confidencialidade e falsificação.
Conteúdo Programatico
Overview of the PSTN and Comparisons to Voice over IP
- The Beginning of the PSTN
- Understanding PSTN Basics
- PSTN Services and Applications
- Drivers Behind the Convergence Between Voice and Data Networking
- Packet Telephony Network Drivers
- New PSTN Network Infrastructure Model
Enterprise Telephony Today
- Similarities Between PSTN and ET
- Differences Between PSTN and ET
- Common ET and PSTN Interworking
Basic Telephony Signalling
- Signalling Overview
- E&M Signalling
- CAS
- ISDN
- QSIG
- DPNSS
Signalling System 7
- SS7 Network Architecture
- SS7 Protocol Overview
- SS7 Examples
- List of SS7 Specifications
PSTN Services
- Plain Old Telephone Service
- Business Services
- Service Provider Services
IP Tutorial
- OSI Reference Model
- Internet Protocol
- Data Link Layer Addresse
- IP Addressing
- Routing Protocols
- IP Transport Mechanisms
VoIP: An In-Depth Analysis
- Delay/Latency
- Jitter
- Pulse Code Modulation
- Voice Compression
- Echo
- Packet Loss
- Voice Activity Detection
- Digital-to-Analog Conversion
- Tandem Encoding
- Transport Protocols
- Dial-Plan Design
Quality of Service
- QoS Network Toolkit
- Edge Functions
- Traffic Policing
- Backbone Networks
- Rules of Thumb for QoS
- Cisco Labs’ QoS Testing
Billing and Mediation Services
- Billing Basics
- Case Study: Cisco SIP Proxy Server and Billing
- Challenges for VoIP Networks
- Mediation Services
Voice Security
- Security Requirements
- Security Technologies
- Protecting Voice Devices
- Protecting IP Network Infrastructure
- Security Planning and Policies
H.323
- H.323 Elements
- H.323 Protocol Suite
- H.323 Call-Flows
SIP
- SIP Overview
- SIP Message Building Blocks
- Basic Operation of SIP
- SIP Procedures for Registration and Routing
- SIP Extensions
Gateway Control Protocols
- MGCP Overview
- MGCP Model
- MGCP Commands and Messages
- MGCP Call Flows
- Advanced MGCP Features
- H.248/MEGACO
PSTN and VoIP Interworking
- Cisco Packet Telephony
- Packet Voice Network Overview
- PGW2200 Architecture and Operations
- PGW2200 Implementation
- PSTN Signalling Over IP
- Changing Landscape of PSTN-IP Interworking
- Session Border Controller (SBC)
Service Provider VoIP Applications and Services
- The Service Provider Dilemma
- Service Provider Applications and Benefits
- Service Provider VoIP Deployment: Vonage
- Service Provider Case Study: Prepaid Calling Card
- Session Border Control: Value Addition
- VoIP Peering: Top Priority for the Service Providers
- Service Provider VoIP and Consumer Fixed Mobile Convergence
Enterprise Voice over IP Applications and Services
- Migrating to VoIP Architecture
- Enterprise Voice Applications and Benefits
- Advanced Enterprise Applications
- Wi-Fi–Enabled Phones
- Better Voice Quality Using Wideband Codecs