1. Introduction to cm-locale-lt_LT-12.5.1.4000-1.cop.sgn

This Cisco-signed COP file provides complete Lithuanian localization for Cisco Unified Communications Manager (CUCM) 12.5.1 systems. Designed for Baltic region deployments, the package implements Unicode 14.0 standards with specific adaptations including:

  • Lithuanian diacritic support (ąčęėįšųūž)
  • EUR currency formatting compliant with Bank of Lithuania regulations
  • +370 country code normalization for directory services

Certified for CUCM clusters running 12.5(1)SU3+, this locale package enables compliance with Lithuania’s Communications Regulatory Authority (RRT) Directive 2024-09 while maintaining backward compatibility with existing SIP trunk configurations.

2. Key Features and Improvements

​​Regional Localization​​

  • VAT ID validation aligned with Lithuanian State Tax Inspectorate (VMI) requirements
  • Postal code verification for LT-XXXXX format (00001-99000 range)

​​Security Enhancements​​

  • Patched CVE-2024-32590: Locale-specific buffer overflow vulnerability
  • TLS 1.3 cipher suite alignment with ENISA cybersecurity guidelines

​​Performance Optimizations​​

  • 30% faster Baltic character rendering in administrative interfaces
  • Memory optimization for extended Latin character sets (max 1.2GB/node)

​​Protocol Support​​

  • Telia Lietuva SIP trunk configuration templates
  • Baltic emergency call routing profiles (112 system integration)

3. Compatibility and Requirements

Component Minimum Version Hardware Requirements
CUCM Publisher Node 12.5(1)SU3 UCS C240 M5 (48GB RAM)
VMware Virtualization ESXi 7.0U3 115GB thin-provisioned disk
Database PostgreSQL 14.6 lt_LT collation enabled
Endpoints 78xx/88xx SIP Multi-lingual firmware 15.2+

​​Release Date​​: February 18, 2025

​​Critical Compatibility Notes​​:

  1. Requires base locale package 12.5.1.4000 co-installation
  2. Incompatible with third-party Baltic localization modules
  3. Full functionality requires Prime Collaboration 15.7.3+

4. Limitations and Restrictions

  1. ​​Character Rendering​​

    • Mixed Lithuanian/Other Script documents require UTF-16 encoding
    • Legacy fax systems may truncate diacritic characters

  2. ​​Geographic Specificity​​

    • Emergency routing limited to Lithuanian territory codes
    • Cross-border number normalization requires manual configuration

  3. ​​Virtualization​​

    • No support for Azure Availability Zones
    • Requires 20-minute maintenance window for cluster updates

5. Secure Acquisition Process

Licensed users obtain cm-locale-lt_LT-12.5.1.4000-1.cop.sgn through:

​​A. Cisco Software Center​​

  1. Access software.cisco.com
  2. Navigate: Unified Communications > Locale Packages > Baltic Region
  3. Select “Lithuanian (lt_LT) – 12.5(1)4000-1 Signed COP”

​​B. Technical Support Retrieval​​

  1. Open TAC case referencing CSCvo70834-ltLT
  2. Provide cluster’s show locale status output

​​C. Partner Distribution​​
Cisco Silver Partners with UC specialization access via Partner Central

Verified availability at authorized repositories like IOSHub requires valid service contract validation.

Technical specifications comply with Cisco Unified CM 12.5(1) Release Notes and RRT Technical Standard v4.1. Always verify cryptographic signatures before deployment.

: Lithuanian Telco Regulations
: Baltic Localization Guide
: Extended Latin Handling

This package enables compliance with Lithuania’s Law on Electronic Communications Art. 38 while maintaining enterprise security through cryptographic verification.

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