Source note · SIP trunk capacity and concurrent call planning
Choosing a certificate-based Webex Calling trunk for capacity above 250 calls also requires domain claims, public DNS A/SRV records, and a CA-signed certificate with the Server Authentication EKU.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Webex Calling Local Gateway
- Subsystem
- trunk models
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Get started with Local Gateway — Cisco Systems, Inc. (Webex Help Center) · tier 2 current vendor documentation · Local Gateway trunking models table, rows 'DNS requirements' and 'Certificate needs'
Cite this note
APA
WarmTransfer. (2026, September 24). SIP trunk capacity and concurrent call planning: source note sip-trunk-capacity-planning-wxc-cert-trunk-prereqs. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-trunk-capacity-planning-wxc-cert-trunk-prereqs
BibTeX
@misc{warmtransfer-claim-sip-trunk-capacity-planning-wxc-cert-trunk-prereqs,
title = {SIP trunk capacity and concurrent call planning: source note sip-trunk-capacity-planning-wxc-cert-trunk-prereqs},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-trunk-capacity-planning-wxc-cert-trunk-prereqs},
note = {Source note sip-trunk-capacity-planning-wxc-cert-trunk-prereqs, checked 2026-09-24}
}