SIP call flow for Direct Routing in Microsoft Teams

Publisher

Microsoft

URL

https://learn.microsoft.com/en-us/microsoftteams/direct-routing-monitor-sip-ladder

Published

2026-03-25

Updated

unknown

Accessed

2026-09-23

HTTP status

200

License

Microsoft Learn terms of use; no-redistribution; short excerpts and locators only

Source notes citing this source

• Viewing the Direct Routing SIP call flow requires the Teams Administrator or Teams Telephony Administrator role. in context
• The Teams admin center SIP call flow shows a chronological ladder diagram of SIP messages exchanged between the customer SBC and the Microsoft SIP Proxy for a selected Direct Routing call. in context
• Microsoft says to allow up to 30 minutes for Direct Routing SIP call data to reach the Teams admin center, and call records older than 30 days are not available in SIP call flow. in context
• Cloud-side ladder views such as the Teams SIP call flow cover only one hop, so an end-to-end ladder for a PSTN call still needs an SBC-side or carrier-side trace joined to it. inferred in context
• SIP call flow data for a Direct Routing call can take up to 30 minutes to be processed and appear in the Teams admin center. in context
• In the Teams admin center the Direct Routing SIP call flow is reached from Analytics & reports > Usage reports > PSTN usage report > Direct Routing tab, by selecting a call and then SIP call flow or its Final SIP code value. in context
• Direct Routing call records older than 30 days are not available in the SIP call flow view. in context
• Viewing the Direct Routing SIP call flow requires the Teams Administrator or Teams Telephony Administrator role. in context
• The Teams SIP call flow ladder shows only the SIP messages exchanged between the customer's SBC and the Microsoft SIP Proxy, in chronological order with arrow direction showing sender and receiver. in context
• The Direct Routing SIP call flow (ladder) view requires the Teams Administrator or Teams Telephony Administrator role. To open it: Analytics & reports > Usage reports > PSTN usage report > Direct Routing tab > select a call > SIP call flow, or select the call's Final SIP code. in context
• SIP call flow data can take up to 30 minutes to appear in the Teams admin center. Calls older than 30 days aren't available in the SIP call flow. in context

Cite this source record

APA

WarmTransfer. (2026, March 25). SIP call flow for Direct Routing in Microsoft Teams. WarmTransfer. https://warmtransfer.net/knowledge/sources/ms-learn-dr-sip-call-flow

BibTeX

@misc{warmtransfer-ms-learn-dr-sip-call-flow,
  title  = {SIP call flow for Direct Routing in Microsoft Teams},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/ms-learn-dr-sip-call-flow},
  note   = {Microsoft, accessed 2026-09-23}
}