Source note · SIP call forwarding and routing loops
For incoming QSIG calls, Unified CM caps diversions at 15 regardless of a higher Forward Maximum Hop Count, and Cisco recommends setting the parameter to 15 when QSIG trunks are configured.
Checked 2026-09-25
When QSIG trunks are configured, Cisco recommends setting this parameter to 15.
- 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 · Forward Maximum Hop Count (QSIG note)
Cite this note
APA
WarmTransfer. (2026, September 25). SIP call forwarding and routing loops: source note sip-forwarding-loops-cucm-qsig-15. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-forwarding-loops-cucm-qsig-15
BibTeX
@misc{warmtransfer-claim-sip-forwarding-loops-cucm-qsig-15,
title = {SIP call forwarding and routing loops: source note sip-forwarding-loops-cucm-qsig-15},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-forwarding-loops-cucm-qsig-15},
note = {Source note sip-forwarding-loops-cucm-qsig-15, checked 2026-09-25}
}