Why Microsoft Teams PSTN Call Quality Is Important?
Microsoft Teams calls through PSTN is usually done either through Direct Routing which enables IT to choose their PSTN carrier and properly plan or through a Microsoft Calling Plan.
Both ways require a combined team to support the quality of the services which can include: the Microsoft 365 and Teams team, the network team, the telephony or UC team, the security team and sometimes other teams managing 3rd party services.
Each team can also have its own tools to monitor performance which can create silos making it difficult for IT to provide real proactive support.
However, the current use of Microsoft Teams for business purposes (client pitch, negotiation, etc.) makes it critical for the quality of the voice to be ensured.