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VoIP monitoring and troubleshooting: Difference between revisions
VoIP monitoring and troubleshooting (view source)
Revision as of 09:25, 17 November 2020
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Remco.derooy (talk | contribs) (Created page with "==Intro== Nowadays, in most companies phone systems are based on voice over IP…in short VoIP. While VoIP has quite some benefits over “legacy” telephone infrastructures,...") |
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[[File:VoIP RTCP reports.png|none|thumb|800x800px]] | [[File:VoIP RTCP reports.png|none|thumb|800x800px]] | ||
==SIP, RTP, RTCP | ==Getting a pcap from SIP, RTP, RTCP== | ||
Next to each call on the Voip Calls screen and | We've learned from network administrators and engineers that it is not an easy task to capture and view the SIP and its corresponding RTP of a call in Wireshark. Especially on Links where multiple calls were active. This is however very easy with an Allegro Network Multimeter. Next to each individual call on the Voip Calls screen (and on the call Details page), you will find several download buttons. Herewith the corresponding and correlated data can easily be extracted and downloaded as a pcap. Whether you are interested in viewing just the SIP flow in Wireshark, or retrieve a calls’ correlated SIP+RTP+RTCP all in one cleanly filtered PCAP for post analysis. It’s all just 1 click away in the Allegro Network Multimeter. | ||
[[File:Sip rtp download.png|none|thumb|800x800px]] | |||
[[File:Wireshark SIP RTP.png|none|thumb|800x800px]] | |||
== | ==Audible VoIP troubleshooting (MP3)== | ||
Crackling, echoing or muffled audio may very well not be due to the network. Unfortunately these specific things also cannot be derived from the information in the audio Level graph. It’s cases like this for which the Allegro Network Multimeter provides the download buttons Audio1 and Audio2. Where allowed or where troubleshooting benefits outweigh privacy constraints, the administrator/engineer may want to download the call audio, per direction, as an MP3. This helps troubleshoot certain issues and provides audible evidence of a bad headset (cable), terrible car kit or other things alike. | Crackling, echoing or muffled audio may very well not be due to the network. Unfortunately these specific things also cannot be derived from the information in the audio Level graph. It’s cases like this for which the Allegro Network Multimeter provides the download buttons Audio1 and Audio2. Where allowed or where troubleshooting benefits outweigh privacy constraints, the administrator/engineer may want to download the call audio, per direction, as an MP3. This helps troubleshoot certain issues and provides audible evidence of a bad headset (cable), terrible car kit or other things alike. | ||