P-2302R Series VoIP Station Gateway User's Guide
Table Of Contents
- P-2302R Series
- User’s Guide
- Copyright
- Federal Communications Commission (FCC) Interference Statement
- Safety Warnings
- ZyXEL Limited Warranty
- Customer Support
- Table of Contents
- List of Figures
- List of Tables
- Preface
- Introducing the Prestige
- Introducing the Web Configurator
- Wizard Setup
- System Screens
- LAN Setup
- WAN Screens
- Introduction to VoIP
- VoIP Screens
- Phone
- Phone Book
- Phone Usage
- Network Address Translation (NAT) Screens
- Static Route
- Firewall
- Content Filtering
- Remote Management Screens
- Universal Plug-and-Play (UPnP)
- Logs
- Bandwidth Management
- 19.1 Bandwidth Management Overview
- 19.2 Bandwidth Classes and Filters
- 19.3 Proportional Bandwidth Allocation
- 19.4 Application-based Bandwidth Management
- 19.5 Subnet-based Bandwidth Management
- 19.6 Application and Subnet-based Bandwidth Management
- 19.7 Scheduler
- 19.8 Maximize Bandwidth Usage
- 19.9 Bandwidth Borrowing
- 19.10 Configuring Summary
- 19.11 Configuring Class Setup
- 19.12 Configuring Monitor
- Maintenance
- Introducing the SMT
- General Setup
- WAN Setup
- LAN Setup
- Internet Access
- Remote Node Configuration
- Static Route Setup
- Network Address Translation (NAT)
- Enabling the Firewall
- Filter Configuration
- SNMP Configuration
- System Information and Diagnosis
- Firmware and Configuration File Maintenance
- 33.1 Filename Conventions
- 33.2 Backup Configuration
- 33.2.1 Backup Configuration
- 33.2.2 Using the FTP Command from the Command Line
- 33.2.3 Example of FTP Commands from the Command Line
- 33.2.4 GUI-based FTP Clients
- 33.2.5 TFTP and FTP over WAN Management Limitations
- 33.2.6 Backup Configuration Using TFTP
- 33.2.7 TFTP Command Example
- 33.2.8 GUI-based TFTP Clients
- 33.3 Restore Configuration
- 33.4 Uploading Firmware and Configuration Files
- System Maintenance
- Remote Management
- Call Scheduling
- Troubleshooting
- 37.1 Problems Starting Up the Prestige
- 37.2 Problems with the LAN Interface
- 37.3 Problems with the WAN Interface
- 37.4 Problems with Internet Access
- 37.5 Problems with the Password
- 37.6 Problems with the Web Configurator
- 37.7 Problems with a Telephone or the Telephone Port
- 37.8 Problems with Voice Service
- 37.9 Pop-up Windows, JavaScripts and Java Permissions
- Product Specifications
- Wall-mounting Instructions
- Setting up Your Computer’s IP Address
- IP Subnetting
- PPPoE
- Triangle Route
- SIP Passthrough
- Index
P-2302R Series User’s Guide
101 Chapter 7 Introduction to VoIP
7.9.1 Pulse Code Modulation
Pulse Code Modulation (PCM) measures analog signal amplitudes at regular time intervals
and converts them into bits.
7.9.2 G.711
G.711 is a Pulse Code Modulation (PCM) waveform codec. G.711 provides very good sound
quality but requires 64kbps of bandwidth.
7.9.3 G.729
G.729 is an Analysis-by-Synthesis (AbS) hybrid waveform codec that uses a filter based on
information about how the human vocal tract produces sounds. G.729 provides good sound
quality and reduces the required bandwidth to 8kbps.
7.10 PSTN Call Setup Signaling
PSTNs (Public Switched Telephone Network)s use DTMF or pulse dialing to set up telephone
calls.
Dual-Tone Multi-Frequency (DTMF) signaling uses pairs of frequencies (one lower frequency
and one higher frequency) to set up calls. It is also known as Touch Tone®. Each of the keys
on a DTMF telephone corresponds to a different pair of frequencies.
Pulse dialing sends a series of clicks to the local phone office in order to dial numbers.
1
7.11 MWI (Message Waiting Indication)
Enable Message Waiting Indication (MWI) enables your phone to give you a message–
waiting (beeping) dial tone when you have a voice message(s). Your voice service provider
must have a messaging system that sends message waiting status SIP packets as defined in
RFC 3842.
1. The Prestige supports DTMF at the time of writing.