Source note · Moving from Unified CM to Zoom Phone
On outbound calls Zoom populates calling name and number in the Contact and P-Asserted-Identity headers and does not use Remote-Party-ID; on inbound calls it accepts calling identity in RPID as well as PAI and From.
Checked 2026-09-25
- Vendor
- Zoom
- Product
- Zoom Phone
- Subsystem
- SIP call processing, caller ID
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-25
- Checked
- 2026-09-25
Sources
- BYOC-P or BYOP-P call processing — Zoom Communications · tier 2 current vendor documentation · Outbound calls from Zoom and Incoming calls to Zoom sections, caller ID
Cite this note
APA
WarmTransfer. (2026, September 25). Moving from Unified CM to Zoom Phone: source note cucm-to-zoom-phone-caller-id-headers. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-to-zoom-phone-caller-id-headers
BibTeX
@misc{warmtransfer-claim-cucm-to-zoom-phone-caller-id-headers,
title = {Moving from Unified CM to Zoom Phone: source note cucm-to-zoom-phone-caller-id-headers},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-to-zoom-phone-caller-id-headers},
note = {Source note cucm-to-zoom-phone-caller-id-headers, checked 2026-09-25}
}