sysop@hub:~/tools/call-quality-troubleshooting$
call-quality-troubleshooting
"You are breaking up." Seven steps from the headset to the provider, for Teams, Zoom and phone systems alike. Each one tells you what to look at and asks what you find.
what you found
Addresses and interface names are placeholders. The limits for loss, jitter and delay are rules of thumb: adaptive codecs tolerate more, G.711 less. Related: VoIP and SIP cheat sheet, Teams Phone cheat sheet, Wi-Fi channel planner, wizard: Wi-Fi, PoE budget calculator for the phones.