bradyvolpe.com

Troubleshooting DOCSIS & DOCSIS Services Series

In this series of blogs I address a myrid of subject matters that involve troubleshooting DOCSIS and services that are provided over DOCSIS such as high speed data (HSD), Voice-over-Internet Protocol (VoIP), and Internet Protocol TV (IPTV).  Many of the blogs include primers that cover fundamentals of the services, such as a VoIP primer so that one has the essential building block for sound troubleshooting.

Troubleshooting DOCSIS – VoIP Impairments

In this blog I am going to digress for a moment from my standard DOCSIS 101 tutorial and spend a little time on DOCSIS troubleshooting basics, especially with respect to Voice-over-Internet Protocol (VoIP). I am doing this as due to many offline questions specific to this topic. Don’t worry, though I may start to inter-mix some troubleshooting blogs now and again, just check the DOCSIS 101 page to stay on top of the latest DOCSIS tutorial blogs.

Troubleshooting DOCSIS – VoIP Impairments > Packet Loss

In this blog I am going to focus on VoIP packet loss, which is just one of the three (3) primary types of VoIP impairments that are present in a DOCSIS network. I will cover many RF and IP terms in this blog that I have not discussed in my previous tutorials, not to worry! This terminology is all fodder for future blogs.

Troubleshooting DOCSIS – VoIP Impairments > Delay & Jitter

In this blog I will address delay and jitter as they pertain to VoIP in a DOCSIS network.  Delay, jitter and packet loss are the three primary impairment in a VoIP network, but packet loss was addressed in my Troubleshooting DOCSIS – VoIP Impairments > Packet Loss blog.  After packet loss, delay is the second most disruptive impairment in VoIP networks.  The effects of delay to the caller generally appear as echo and talker overlap.