Source note · Webex Contact Center Flow Designer architecture
Certain SIP header name patterns (e.g. X-Address, X-BNR-*, X-RTMS-*) are reserved for internal use; any custom header matching these patterns is dropped by default and never passed to Webex Contact Center.
Checked 2026-09-04
- Vendor
- Cisco
- Product
- Webex Contact Center
- Subsystem
- Flow Designer
- Deployment
- cloud
- Region
- not restricted
- Release range
- current as of 2026-09-04
- Checked
- 2026-09-04
Sources
- Build and manage flows with Flow Designer — Cisco Systems, Inc. (Webex Help Center) · tier 2 current vendor documentation · NewContact / SIP header extraction
Cite this note
APA
WarmTransfer. (2026, September 4). Webex Contact Center Flow Designer architecture: source note wxcc-fd-sip-header-reserved-prefixes-dropped. WarmTransfer. https://warmtransfer.net/knowledge/claims/wxcc-fd-sip-header-reserved-prefixes-dropped
BibTeX
@misc{warmtransfer-claim-wxcc-fd-sip-header-reserved-prefixes-dropped,
title = {Webex Contact Center Flow Designer architecture: source note wxcc-fd-sip-header-reserved-prefixes-dropped},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/wxcc-fd-sip-header-reserved-prefixes-dropped},
note = {Source note wxcc-fd-sip-header-reserved-prefixes-dropped, checked 2026-09-04}
}