Cisco's example registration-based Local Gateway configuration registers over TLS with the sips scheme, a 240-second expiry and refresh ratio 50, so the gateway re-registers about every 120 seconds.
Checked 2026-10-02
registrar dns:98027369.us10.bcld.webex.com scheme sips expires 240 refresh-ratio 50 tcp tls
- Vendor
- Cisco
- Product
- Webex Calling
- Subsystem
- Local Gateway trunk
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Configure Local Gateway on Cisco IOS XE for Webex Calling — Cisco Systems, Inc. (Webex Help Center) · tier 2 current vendor documentation · Registration-based Local Gateway: voice class tenant 100 registrar command
Cite this note
APA
WarmTransfer. (2026, October 2). SIP trunk authentication: registration and static IP and mutual TLS: source note sip-trunk-authentication-models-webex-lgw-reg-sips-expiry. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-trunk-authentication-models-webex-lgw-reg-sips-expiry
BibTeX
@misc{warmtransfer-claim-sip-trunk-authentication-models-webex-lgw-reg-sips-expiry,
title = {SIP trunk authentication: registration and static IP and mutual TLS: source note sip-trunk-authentication-models-webex-lgw-reg-sips-expiry},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-trunk-authentication-models-webex-lgw-reg-sips-expiry},
note = {Source note sip-trunk-authentication-models-webex-lgw-reg-sips-expiry, checked 2026-10-02}
}