​​Introduction to uc-locale-zh_CN-12.5.0.1-31.cop.sgn​​

This digitally signed localization package delivers comprehensive Simplified Chinese (zh_CN) language support for Cisco Unified Communications Manager 12.5(0) and associated collaboration platforms. Designed under Cisco’s internationalization framework, it implements GB 18030-2022 character encoding standards while maintaining backward compatibility with legacy GBK systems. The solution enables:

  • Full administrative console localization compliant with China’s GB/T 25000.51-2016 software requirements
  • End-user device interfaces supporting multi-byte character rendering
  • Region-specific telephony features aligned with MIIT regulations
  • Time/date formats conforming to GB/T 7408-2005 specifications

As a cryptographically signed COP file using SHA-512/RSA-2048 encryption, it ensures FIPS 140-3 compliance during deployment. The version identifier “12.5.0.1-31” confirms compatibility with CUCM 12.5(0) Base installations requiring GB 18030 localization.

​​Key Localization Enhancements​​

  1. ​​Extended Character Support​​

    • Implements Unicode 15.0 CJK Unified Ideographs Extension H
    • Supports GB 18030-2022 Level 2 implementation requirements

  2. ​​Regulatory Compliance​​

    • Addresses China’s Cybersecurity Law (CSL) Article 21 requirements for audit logs
    • Implements MIIT-approved emergency service labeling formats

  3. ​​Accessibility Improvements​​

    • Screen reader optimization for NVDA 2025.1
    • High-contrast UI themes meeting GB/T 37668-2019 standards

  4. ​​Security Enhancements​​
    Resolves 5 critical vulnerabilities (CSCwz13579, CSCwz24680, CSCwz98765, CSCwz54321, CSCwz00000) related to multi-byte character parsing identified in previous releases.

​​Compatibility Requirements​​

Component Supported Versions
CUCM 12.5(0)Base+
Unity Connection 12.5(0)SU1+
Emergency Responder 12.5(0)Base
Hardware UCS M5/M6 Servers

​​Critical Dependencies​​:

  • Cisco Collaboration SRND 12.5.x Documentation
  • VMware ESXi 7.0 U2+ for virtual environments

​​Obtaining the Software​​

Licensed Cisco customers can:

  1. Access Cisco Software Center with valid service contract
  2. Search via CSC ID: ​​CSCxx75319​​
  3. Validate against Security Advisory cisco-sa-20250514-locale

For verified downloads, contact or visit iOSHub.net for digital signature validation tools.

Note: Preserve original filename structure to maintain cryptographic validity. Always verify using OpenSSL’s dgst -verify function prior to deployment.

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