In a hybrid deployment with on-premises Active Directory, any number stored in the msRTCSIP-Line attribute of the user or resource account must be removed and synchronized to Microsoft 365 before an Operator Connect number can be assigned.

Checked 2026-09-25

Vendor
Microsoft
Product
Microsoft Teams Phone
Subsystem
Phone number management
Deployment
hybrid
Region
not restricted
Release range
current as of 2026-09-25
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Setting up Microsoft Teams Operator Connect: source note teams-operator-connect-setup-hybrid-line-attribute. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-operator-connect-setup-hybrid-line-attribute

BibTeX

@misc{warmtransfer-claim-teams-operator-connect-setup-hybrid-line-attribute,
  title  = {Setting up Microsoft Teams Operator Connect: source note teams-operator-connect-setup-hybrid-line-attribute},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/teams-operator-connect-setup-hybrid-line-attribute},
  note   = {Source note teams-operator-connect-setup-hybrid-line-attribute, checked 2026-09-25}
}

Read in context