Monitoring and Troubleshooting VoIP Networks with a Network Analyzer
Introduction
Protocol Overview
Signaling
Streams
Codecs
Monitoring VoIP Networks
Status of Current Calls
Details about Current Calls
Bandwidth Utilization
Endpoints
Typical VoIP Problems
Packet Loss
Jitter
Sequence Errors
Codec Quality
Assessing Sound Quality
MOS and R-Factor
Actual Call Playback
VoWLAN-Specific Factors
Number of Clients per AP
Signal Strength
Number of Retries
Wireless QoS (WMM)
Reporting
About TamoSoft
Protocol Overview
This chapter overviews the VoIP transport protocol.
Voice over IP uses the Internet Protocol (IP) as an underlying transport base. Voice is digitized, converted to IP packets, and transmitted from point to point over an IP network.