Source note · SIP call forwarding and routing loops
In Direct Routing, the trunk's ForwardCallHistory parameter controls whether History-Info is populated, and inbound History-Info is preserved only when ForwardCallHistory is enabled.
Checked 2026-09-25
Inbound History-Info is preserved when the ForwardCallHistory parameter is enabled.
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- History-Info
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-25
- Checked
- 2026-09-25
Sources
- Teams Phone System Direct Routing: SIP protocol — Microsoft · tier 2 current vendor documentation · Call forwarding section; History-Info header section
Cite this note
APA
WarmTransfer. (2026, September 25). SIP call forwarding and routing loops: source note sip-forwarding-loops-teams-dr-forwardcallhistory. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-forwarding-loops-teams-dr-forwardcallhistory
BibTeX
@misc{warmtransfer-claim-sip-forwarding-loops-teams-dr-forwardcallhistory,
title = {SIP call forwarding and routing loops: source note sip-forwarding-loops-teams-dr-forwardcallhistory},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-forwarding-loops-teams-dr-forwardcallhistory},
note = {Source note sip-forwarding-loops-teams-dr-forwardcallhistory, checked 2026-09-25}
}