Source note · Unified CM SIP normalization and transparency scripts
The preinstalled refer-passthrough script removes Unified CM from a call after a blind transfer between SIP trunks.
Checked 2026-09-25
Removes Cisco Unified Communications Manager from the call due to a blind transfer between SIP trunks.
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- preinstalled scripts
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 12.5(1) through Release 15 and SUs
- Checked
- 2026-09-25
Sources
- Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Configure SIP Normalization and Transparency — Cisco Systems · tier 2 current vendor documentation · default scripts table, refer-passthrough row
Cite this note
APA
WarmTransfer. (2026, September 25). Unified CM SIP normalization and transparency scripts: source note cucm-sip-normalization-refer-passthrough-script. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-sip-normalization-refer-passthrough-script
BibTeX
@misc{warmtransfer-claim-cucm-sip-normalization-refer-passthrough-script,
title = {Unified CM SIP normalization and transparency scripts: source note cucm-sip-normalization-refer-passthrough-script},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-sip-normalization-refer-passthrough-script},
note = {Source note cucm-sip-normalization-refer-passthrough-script, checked 2026-09-25}
}