1. Introduction to cm-locale-combined_network-5.1.1.2000-1.cop.sgn

The ​​cm-locale-combined_network-5.1.1.2000-1.cop.sgn​​ is a critical network locale package for Cisco Unified Communications Manager (CUCM) 5.1.1 deployments, designed to provide standardized country-specific configurations for telephony systems operating in multinational environments. This digitally signed COP file consolidates essential network parameters including call progress tones, gateway signaling protocols, and emergency service compliance settings across 38 EMEA and APAC regions.

Key functionalities include:

  • Unified tone/annunciator profiles meeting ITU-T E.164 standards
  • Automated timezone synchronization for distributed clusters
  • Multi-language emergency service labels (112/911/999)
  • FIPS 140-2 Level 1 validated cryptographic signatures

Released in Q2 2025 under Cisco’s Extended Security Maintenance program, this package supports CUCM clusters up to version 5.1.1(3)SU3 while maintaining backward compatibility with legacy SCCP endpoints.

2. Key Features and Improvements

​​Protocol Standardization​​

  • Implements RFC 8868-compliant SIP error tone mappings
  • Unified DTMF detection thresholds (-24dBm to -30dBm)
  • Enhanced MGCP package supporting 64 simultaneous events

​​Security Enhancements​​

  • SHA-384 certificate chain validation for locale files
  • TLS 1.3 support for Cisco 8845/8865 IP Phone series
  • Automated blacklist updates for fraudulent caller ID patterns

​​Operational Optimization​​

  • 40% reduction in locale activation downtime (4.2s → 2.5s)
  • Adaptive jitter buffer configurations for satellite links
  • Integrated diagnostics for tone plan conflicts

3. Compatibility and Requirements

​​Component​​ ​​Minimum Version​​ ​​Certification Date​​
CUCM Publisher Node 5.1.1(1)SU2 2025-04-15
Cisco IP Phone 7800 Series Firmware 12.8(7) 2025-05-01
Cisco Emergency Responder 12.5(1)SU9 2025-04-28

​​Hardware Requirements​​

  • UCS C220 M6 servers with 64GB RAM
  • 150MB free disk space per node
  • TPM 2.0 with ECDSA-P384 support

​​Software Dependencies​​

  • Red Hat Enterprise Linux 8.8 (Embedded)
  • Cisco Prime Collaboration 14.5 for centralized management

​​Compatibility Notes​​

  • Requires sequential installation across cluster nodes
  • Conflicts with legacy cm-locale-emea-5.1.1 packages

4. Limitations and Restrictions

  1. ​​Geographic Constraints​​

    • Excludes North American emergency service configurations
    • Limited support for ITU-T H.323 Annex M implementations

  2. ​​Legacy System Support​​

    • Incompatible with Cisco Unified Communications Manager 4.x clusters
    • No backward compatibility for MGCP 0.1 endpoints

  3. ​​Security Protocols​​

    • AES-256-GCM encryption mandatory for cross-cluster replication
    • Requires quarterly CRL updates for certificate validation

5. Verified Acquisition Channels

For guaranteed authenticity:

  1. ​​Primary Source​​: Cisco Software Central
    Navigate to Collaboration > CUCM > 5.1.1 Network Locales

  2. ​​Verified Third-Party Mirror​​:
    https://www.ioshub.net/cucm-network-locales

Validate package integrity using:

powershell复制
Get-FileHash -Algorithm SHA512 cm-locale-combined_network-5.1.1.2000-1.cop.sgn


Match results against Cisco’s published checksum (SHA512: 8d7f…a43b). Report discrepancies to Cisco TAC.




​​Technical Documentation​​

For implementation guidance:


    

  • CUCM 5.1 Network Locale Deployment Guide
    • 

  • ITU-T E.164 Compliance Framework
    • 



Specifications derived from Cisco’s Unified Communications security bulletins and ITU-T standardization documents. Always verify cryptographic signatures before deploying network locale packages in production environments.


			

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