Source note · Calls going straight to voicemail
In Unified CM, Call Forward Busy (internal and external) forwards calls only when the line is in use and the configured Call Forward Busy trigger value is reached.
Checked 2026-09-25
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- call forwarding
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15 and SUs
- Checked
- 2026-09-25
Sources
- Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Call Forwarding — Cisco Systems · tier 2 current vendor documentation · Call Forwarding Overview; Call Forward Busy Internal/External definition
Cite this note
APA
WarmTransfer. (2026, September 25). Calls going straight to voicemail: source note calls-straight-to-voicemail-ucm-cfb-definition. WarmTransfer. https://warmtransfer.net/knowledge/claims/calls-straight-to-voicemail-ucm-cfb-definition
BibTeX
@misc{warmtransfer-claim-calls-straight-to-voicemail-ucm-cfb-definition,
title = {Calls going straight to voicemail: source note calls-straight-to-voicemail-ucm-cfb-definition},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/calls-straight-to-voicemail-ucm-cfb-definition},
note = {Source note calls-straight-to-voicemail-ucm-cfb-definition, checked 2026-09-25}
}