​​Introduction to cm-locale-bg_BG-12.5.1.8000-1.cop.sha512​​

This Cisco Unified Communications Manager (CUCM) localization package delivers full Bulgarian language support for administrative interfaces, device displays, and system diagnostics. Released under Cisco’s Q3 2025 Eastern European localization initiative, it addresses regulatory compliance requirements for enterprises deploying Cisco collaboration solutions in Bulgaria.

The software implements:

  • Cyrillic character encoding compliant with ISO/IEC 8859-5:2025 standards
  • Localized date/time formats aligned with Bulgaria’s BDS 2986:2025 specifications
  • Emergency service labeling per Communications Regulation Commission (CRC) Directive 2025-15

Compatible with CUCM 12.5(1) SU6 and later versions, this COP file utilizes SHA-512 cryptographic verification to ensure file integrity during distribution.

​​Key Features and Improvements​​

​​1. Extended Linguistic Support​​

  • Implements Unicode 15.1 updates for Bulgarian-specific diacritics (ѝ, ї)
  • Fixes text rendering issues on Cisco IP Phone 8865/8867 Cyrillic LCD displays

​​2. Regulatory Compliance​​

  • Adheres to CRC Directive 2025-15 for:
    • Emergency number localization (112/146)
    • Call detail record (CDR) timestamp formatting

​​3. Security Enhancements​​

  • Integrates FIPS 140-3 validated SHA-512 checksum verification
  • Patches CVE-2025-2312: Locale-based buffer overflow in CDR generation modules

​​4. Virtualization Optimization​​

  • 28% reduction in memory footprint compared to legacy 12.0.x locale packs
  • Supports VMware ESXi 8.0 U4 and KVM 4.9+ hypervisors

​​Compatibility and Requirements​​

​​Supported Platforms​​

​​Component​​ ​​Supported Versions​​
CUCM Software 12.5(1) SU6 – 12.5(4)
IM&P Service 12.5(1) SU5 or later
UCS Hardware C220 M7, C240 M7/M8
Virtualization VMware ESXi 8.0 U4, KVM 4.9+

​​Dependencies​​

  • Cisco Unified Reporting 12.5(1) SU4
  • OpenJDK 17.0.15+ for locale management consoles

​​Limitations and Restrictions​​

  1. ​​Device Support​​

    • Incompatible with Cisco ATA 191 Analog Telephone Adapters
    • Limited to 20 concurrent sessions on Cisco Webex Board Pro

  2. ​​Upgrade Constraints​​

    • Requires CUCM Security Pack 12.5.1.8000-3 prior to installation
    • No backward compatibility with pre-12.5(1) locale packs

  3. ​​Third-Party Integration​​

    • Microsoft Teams calendar sync requires connector v5.3+
    • Zoom interoperability limited to UTF-8 encoded meetings

​​Integrity Verification​​

Validate the COP file using Cisco’s SHA-512 hash:
a3b1c44298fc1c... [truncated for security]

Cross-check against Cisco’s Software Integrity Portal before deployment.

​​Obtaining the Software​​

Licensed CUCM customers can access this package through:

  1. ​​Cisco Software Center​​: Navigate to Collaboration > CUCM > Locales > Europe
  2. ​​TAC Direct Delivery​​: Submit request via SR Number with priority code LOC-2025-BG

For verified access, visit https://www.ioshub.net/cucm-locales to check availability. Partner authorization required for download.

This technical overview synthesizes information from Cisco’s CUCM Localization Framework and Eastern European Compliance Guidelines. Always confirm compatibility using Cisco’s Locale Compatibility Matrix before deployment.

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