In Unified CM call-processing traces, the digit analysis match line carries a pss field listing the partition search space (the calling search space) of the device placing the call.
Checked 2026-09-30
In the Digit Analysis component of the previous trace, the pss (Partition Search Space, also known as Calling Search Space) gets listed for the device that is placing the call.
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- traces
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 12.5(1) as documented
- Checked
- 2026-09-30
Sources
- Troubleshooting Guide for Cisco Unified Communications Manager, Release 12.5(1) - Dial Plans and Routing Issues — Cisco Systems · tier 2 current vendor documentation · Dial Plans and Routing Issues > Route Partitions and Calling Search Spaces
Cite this note
APA
WarmTransfer. (2026, September 30). Troubleshooting Unified CM call routing failures and reorder tone: source note cucm-call-routing-failures-trace-pss-field. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-call-routing-failures-trace-pss-field
BibTeX
@misc{warmtransfer-claim-cucm-call-routing-failures-trace-pss-field,
title = {Troubleshooting Unified CM call routing failures and reorder tone: source note cucm-call-routing-failures-trace-pss-field},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-call-routing-failures-trace-pss-field},
note = {Source note cucm-call-routing-failures-trace-pss-field, checked 2026-09-30}
}