Microsoft states that CLID values it originates may be changed, omitted or truncated by intermediary or terminating carriers, and that it has little to no recourse in correcting this in the PSTN.

Checked 2026-09-25

Vendor
Microsoft
Product
Teams Phone
Subsystem
PSTN delivery
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). Wrong or missing caller ID on outbound calls: source note caller-id-presentation-problems-teams-carrier-alters-clid. WarmTransfer. https://warmtransfer.net/knowledge/claims/caller-id-presentation-problems-teams-carrier-alters-clid

BibTeX

@misc{warmtransfer-claim-caller-id-presentation-problems-teams-carrier-alters-clid,
  title  = {Wrong or missing caller ID on outbound calls: source note caller-id-presentation-problems-teams-carrier-alters-clid},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/caller-id-presentation-problems-teams-carrier-alters-clid},
  note   = {Source note caller-id-presentation-problems-teams-carrier-alters-clid, checked 2026-09-25}
}

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