Source note · SIP trunk carrier turn-up and acceptance testing
The Direct Routing connect article says SBC OPTIONS pings must not exceed one transaction every 60 seconds and must not be more or less frequent than one every 180 seconds, per trunk per endpoint; read with the monitor article, the working interval is between 60 and 180 seconds.
inferred · Checked 2026-09-25
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- keepalive
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-25
- Status
- inferred
- Checked
- 2026-09-25
Sources
- Connect your Session Border Controller (SBC) to Direct Routing — Microsoft · tier 2 current vendor documentation · Connect the SBC to the tenant > Considerations (SIP OPTIONS bullet)
Cite this note
APA
WarmTransfer. (2026, September 25). SIP trunk carrier turn-up and acceptance testing: source note sip-trunk-carrier-turn-up-dr-options-window. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-trunk-carrier-turn-up-dr-options-window
BibTeX
@misc{warmtransfer-claim-sip-trunk-carrier-turn-up-dr-options-window,
title = {SIP trunk carrier turn-up and acceptance testing: source note sip-trunk-carrier-turn-up-dr-options-window},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-trunk-carrier-turn-up-dr-options-window},
note = {Source note sip-trunk-carrier-turn-up-dr-options-window, checked 2026-09-25}
}