Source note · Troubleshooting calls that drop on hold or transfer
Since a change in June 2026, for blind transfers Microsoft terminates the original call immediately after the SBC accepts the transfer, without waiting for the transfer's final result; the page points to Message Center post MC1296872.
Checked 2026-09-30
The call is now terminated by Microsoft immediately after the transfer is accepted by the SBC, without waiting for the final result of the transfer.
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- call-transfer
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- from June 2026; current as of 2026-09-30
- Checked
- 2026-09-30
Sources
- Issues with call transfers - Microsoft Teams — Microsoft · tier 2 current vendor documentation · Calls drop before the transfer is completed, final paragraph
Cite this note
APA
WarmTransfer. (2026, September 30). Troubleshooting calls that drop on hold or transfer: source note sip-reinvite-call-drops-dr-blind-transfer-june-2026. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-reinvite-call-drops-dr-blind-transfer-june-2026
BibTeX
@misc{warmtransfer-claim-sip-reinvite-call-drops-dr-blind-transfer-june-2026,
title = {Troubleshooting calls that drop on hold or transfer: source note sip-reinvite-call-drops-dr-blind-transfer-june-2026},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-reinvite-call-drops-dr-blind-transfer-june-2026},
note = {Source note sip-reinvite-call-drops-dr-blind-transfer-june-2026, checked 2026-09-30}
}