Source
Documentation (PSTN connectivity options) — Microsoft Teams Phone
Checked for Microsoft Teams Phone on 5 Nov 2026
- Page
- https://learn.microsoft.com/en-us/microsoftteams/pstn-connectivity
- Checked
- 5 Nov 2026, 14:11 UTC
- How we may use it
- Public page, crawling permitted
Technical details
- type
- page
- http status
- 200
- content hash
- sha256:f2acf294f7f4ab9a4c530ba91a008ca6027890c59a821a02332d46bf034e983f
- permission
- robots_ok
- screenshot
- Screenshot on file (internal exhibit, not published)
Cited by
Facts read from this source
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Calling plan description Report an error
“Microsoft Teams Calling Plan. A cloud based Phone System solution with Microsoft as your operator.”
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Calling plan SLA Report an error
“PSTN access, phone numbers, emergency screening service in the U.S., and support for your telephone service come from Microsoft, with a 99.999% reliability Service Level Agreement (SLA).”
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Calling plan license required Report an error
“This option requires a Microsoft Teams Calling Plan license.”
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Operator connect description Report an error
“With the Operator Connect offer, take advantage of certified third-party landline operators who have already completed the PSTN integration with Microsoft.”
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Operator connect requirement Report an error
“This option requires a contract with a third-party service provider.”
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Teams phone mobile description Report an error
“With Microsoft Teams Phone Mobile, take advantage of certified third-party mobile operators, who have already completed the PSTN integration with Microsoft.”
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Teams phone mobile requirement Report an error
“This option requires a contract with a third-party service provider.”
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Direct routing description Report an error
“With the Direct Routing model, you can use any PSTN operator. Integration of your preferred PSTN operator’s access to your tenant is achieved through a certified Session Border Controller (SBC) that is procured, installed, and managed by you, your integrator, or a Direct-Routing-as-a-Service (DRaaS) provider.”
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Direct routing requirement Report an error
“This option requires a contract with a third-party service provider and a session border controller solution.”
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Teams phone mobile number limits Report an error
“Teams Phone Mobile supports user phone numbers only and doesn't support Audio Conferencing or voice application numbers.”
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Calling plan number types Report an error
“Microsoft Calling Plan, Operator Connect, and Direct Routing support user phone numbers, Audio Conferencing numbers, and voice application numbers (such as Auto Attendants and Call Queues).”
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Multi operator combinations Report an error
“Organizations can use the same PSTN connectivity option with multiple operators or combine multiple PSTN connectivity options to meet different business and regional requirements.”
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Licensing requirement Report an error
“In order to use PSTN telephony services with Teams Phone, the user account must be licensed with the Teams Phone application and also be equipped with a PSTN solution from your PSTN service provider of choice.”
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Calling plan management model Report an error
“Management model Microsoft-managed Shared between your participating telecommunications provider and Microsoft Teams Participating mobile operator Customer-managed Session Border Controller (SBC)”
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Emergency screening US Report an error
“PSTN access, phone numbers, emergency screening service in the U.S., and support for your telephone service come from Microsoft, with a 99.999% reliability Service Level Agreement (SLA).”
1 fact read from this page is not shown because it could not be confirmed on the page as captured.
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