Cisco's most explicit outbound-data warning names 5 categories of information not to place in SIP headers, and it is scoped to the smallest payload the platform sends.
Checked 2026-09-05
You must avoid including the following sensitive PII information within the SIP headers. Full names ... Social Security Numbers ... Physical addresses ... Financial information ... Health information
- Vendor
- Cisco
- Product
- Webex Contact Center
- Subsystem
- Blind Transfer and Bridged Transfer activities
- Deployment
- not restricted
- Region
- not restricted
- Release range
- current as of 2026-09-05
- Checked
- 2026-09-05
Sources
- Build and manage flows with Flow Designer — Cisco Systems, Inc. (Webex Help Center) · tier 2 current vendor documentation · Blind Transfer step 4; repeated verbatim in Bridged Transfer step 6
Cite this note
APA
WarmTransfer. (2026, September 5). Which Flow Designer activities can send customer data outside the platform: source note flowgress-sip-header-pii-warning. WarmTransfer. https://warmtransfer.net/knowledge/claims/flowgress-sip-header-pii-warning
BibTeX
@misc{warmtransfer-claim-flowgress-sip-header-pii-warning,
title = {Which Flow Designer activities can send customer data outside the platform: source note flowgress-sip-header-pii-warning},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/flowgress-sip-header-pii-warning},
note = {Source note flowgress-sip-header-pii-warning, checked 2026-09-05}
}