Cisco warns administrators to configure only the numbers allocated to their Webex Contact Center PSTN connection because entering invalid numbers may result in call routing failures.
Checked 2026-09-30
Entering invalid numbers may result in call routing failures during subsequent steps.
- Vendor
- Cisco
- Product
- Webex Contact Center
- Subsystem
- PSTN number provisioning
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-30
- Checked
- 2026-09-30
Sources
- Set up voice channels for Webex Contact Center — Cisco Systems, Inc. (Webex Help Center) · tier 2 current vendor documentation · Configuration of Webex Contact Center PSTN numbers (warning note)
Cite this note
APA
WarmTransfer. (2026, September 30). Troubleshooting inbound calls that fail to reach Webex Contact Center: source note wxcc-inbound-call-failures-invalid-numbers. WarmTransfer. https://warmtransfer.net/knowledge/claims/wxcc-inbound-call-failures-invalid-numbers
BibTeX
@misc{warmtransfer-claim-wxcc-inbound-call-failures-invalid-numbers,
title = {Troubleshooting inbound calls that fail to reach Webex Contact Center: source note wxcc-inbound-call-failures-invalid-numbers},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/wxcc-inbound-call-failures-invalid-numbers},
note = {Source note wxcc-inbound-call-failures-invalid-numbers, checked 2026-09-30}
}