Block patterns prevent calls that should not be routed; Cisco's example blocks 91900XXXXXXX to stop calls to 900 services and suggests blocking area codes to prevent toll fraud.

Checked 2026-09-24

For example, blocking the pattern 91900XXXXXXX prevents users from placing calls to 900 services.
Vendor
Cisco
Product
Cisco Unified Communications Manager
Subsystem
call routing
Deployment
on-premises
Region
not restricted
Release range
Release 15 and SUs
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). Unified CM route patterns and partitions configuration: source note cucm-config-route-patterns-and-partitions-block-patterns. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-config-route-patterns-and-partitions-block-patterns

BibTeX

@misc{warmtransfer-claim-cucm-config-route-patterns-and-partitions-block-patterns,
  title  = {Unified CM route patterns and partitions configuration: source note cucm-config-route-patterns-and-partitions-block-patterns},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-config-route-patterns-and-partitions-block-patterns},
  note   = {Source note cucm-config-route-patterns-and-partitions-block-patterns, checked 2026-09-24}
}

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