Claim record · Webex Contact Center voice channel and PSTN options
For Webex Dedicated Instance to Webex Calling multitenant Contact Center integration, Cisco requires certificate-based (mTLS) SIP trunks; registration-based trunks are no longer supported for this integration.
fact · verified 2026-09-04
you must use certificate based trunks (mTLS) as registration based trunks are no longer supported
- Vendor
- Cisco
- Product
- Webex Calling Dedicated Instance
- Subsystem
- Voice channel and PSTN
- Deployment
- dedicated-instance
- Region
- not restricted
- Release range
- current as of 2026-09-04
- Status
- fact
- Confidence
- 0.90
- Verified
- 2026-09-04
Sources
- Webex Dedicated Instance Contact Center integration — Cisco Systems, Inc. (Webex Help Center) · tier 2 current vendor documentation · Integrating Webex Contact Center (WxCC) and Webex Dedicated Instance section
Cite this claim
APA
WarmTransfer. (2026, September 4). Webex Contact Center voice channel and PSTN options: claim wxcc-vc-dedicated-instance-requires-certificate-trunks. WarmTransfer. https://warmtransfer.net/knowledge/claims/wxcc-vc-dedicated-instance-requires-certificate-trunks
BibTeX
@misc{warmtransfer-claim-wxcc-vc-dedicated-instance-requires-certificate-trunks,
title = {Webex Contact Center voice channel and PSTN options: claim wxcc-vc-dedicated-instance-requires-certificate-trunks},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/wxcc-vc-dedicated-instance-requires-certificate-trunks},
note = {Claim wxcc-vc-dedicated-instance-requires-certificate-trunks, verified 2026-09-04}
}