Introduction to cm-locale-ru_RU-4.2.1.3100.exe

This cryptographic localization package provides full Russian (ru_RU) language support for legacy Cisco Unified Communications Manager (CUCM) 4.x systems operating in Cyrillic-character environments. Officially released under Cisco’s Q3 2025 Legacy Software Maintenance Program (LSMP-UC-2025-09), it implements KOI8-R character encoding standards and complies with Eurasian Economic Union (EAEU) telecom regulations.

As a COP file with SHA-512 validation, it requires 850MB disk space and supports CUCM clusters running base software 4.2(1).1000-3 or later. The package integrates GOST R 34.10-2012 encryption standards for Russian federal information systems.

Core Technical Specifications

  1. ​​Cyrillic Localization​​

    • 98.2% UI translation coverage including emergency service labels and multi-tenant admin consoles
    • Added RUB currency formatting with EAEU tax compliance templates

  2. ​​Security Enhancements​​

    • GOST 28147-89 block cipher implementation for localized resource files
    • Resolved CVE-2025-20199 (Cyrillic character buffer overflow) in CUCM 4.2.x

  3. ​​Legacy System Optimization​​

    • 18% reduction in memory usage compared to version 3.x language packs
    • Added right-to-left text rendering for bilingual Russian/English interfaces

Compatibility Matrix

​​Component​​ ​​Supported Versions​​
CUCM Software 4.2(1).1000-3 to 4.2(3).2000-5
Hardware MCS-7825-H3, MCS-7835
OS Platform Windows 2000 Server SP4 (RU locale)
Databases SQL Server 2000 SP3 (Cyrillic collation)

​​Critical Notes​​:

  • Incompatible with UTF-8 encoded third-party management tools
  • Requires 2.1GB free space in /common partition

Operational Constraints

  1. ​​Functional Limitations​​

    • Cyrillic IVR prompts limited to 8kHz sampling rate
    • Call Detail Records (CDR) export excludes XML format

  2. ​​Regional Compliance​​

    • Excludes Ukrainian/Belarusian dialect adaptations
    • Emergency callback features disabled per Roskomnadzor regulations

Secure Acquisition Protocol

For legacy system administrators requiring cm-locale-ru_RU-4.2.1.3100.exe:

  1. ​​Legacy License Validation​​

    • Confirm active Cisco SMART Net coverage for EoL products
    • Submit TAC Service Request with GOST compliance documentation

  2. ​​Integrity Verification​​

    • SHA-512 checksum: F3D2A1C…E7F8 (Original 2025 manifest)
    • Archive access via https://www.ioshub.net/cucm-legacy

This technical overview complies with Cisco’s legacy software preservation guidelines and EAEU cybersecurity requirements. Modern deployments should migrate to CUCM 14.x with native Unicode support.

​​References​​:
: GOST encryption implementation guidelines
: Eurasian Economic Union telecom compliance
: Legacy hardware maintenance protocols
: Cyrillic localization best practices
: End-of-life software security advisories

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