Source note · Integrating Unity Connection with Unified CM

The SCCP procedure creates a partition for voice mail port directory numbers (example VMRestrictedPT), a partition for the hunt pilot (example VMPilotNumberPT) and a calling search space for the ports (example VMRestrictedCSS) that user phones do not use, so users cannot dial the ports directly.

Checked 2026-09-25

Because this calling search space is not used by user phones, users are not able to dial the voice mail ports

Vendor: Cisco
Product: Cisco Unified Communications Manager
Subsystem: dial plan
Deployment: on-premises
Region: not restricted
Release range: Unity Connection 15 integration guide
Checked: 2026-09-25

Sources

Cisco Unified Communications Manager SCCP Integration Guide for Cisco Unity Connection Release 15 - Setting Up a Cisco Unified Communications Manager SCCP Integration — Cisco Systems · tier 2 current vendor documentation · Setting Up a Cisco Unified CM SCCP Integration, tasks: partitions and calling search space; voice mail port directory numbers

Cite this note

APA

WarmTransfer. (2026, September 25). Integrating Unity Connection with Unified CM: source note unity-connection-cucm-integration-setup-sccp-partitions. WarmTransfer. https://warmtransfer.net/knowledge/claims/unity-connection-cucm-integration-setup-sccp-partitions

BibTeX

@misc{warmtransfer-claim-unity-connection-cucm-integration-setup-sccp-partitions,
  title  = {Integrating Unity Connection with Unified CM: source note unity-connection-cucm-integration-setup-sccp-partitions},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/unity-connection-cucm-integration-setup-sccp-partitions},
  note   = {Source note unity-connection-cucm-integration-setup-sccp-partitions, checked 2026-09-25}
}

Read in context