To use SIP Gateway, Teams users must have a phone number with PSTN calling enabled.

Checked 2026-09-25

Vendor
Microsoft
Product
Teams SIP Gateway
Subsystem
devices
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-25
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Migrating from Avaya Aura: source note avaya-aura-migration-sip-gw-pstn-required. WarmTransfer. https://warmtransfer.net/knowledge/claims/avaya-aura-migration-sip-gw-pstn-required

BibTeX

@misc{warmtransfer-claim-avaya-aura-migration-sip-gw-pstn-required,
  title  = {Migrating from Avaya Aura: source note avaya-aura-migration-sip-gw-pstn-required},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/avaya-aura-migration-sip-gw-pstn-required},
  note   = {Source note avaya-aura-migration-sip-gw-pstn-required, checked 2026-09-25}
}

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