Introduction to ps-locale-zh_CN-12.5.1.8001-1.cop.sha512

This localization package provides ISO/IEC 10646-compliant Simplified Chinese (zh_CN) language support for Cisco Unified Communications Manager (CUCM) 12.5.1 deployments. Designed for mainland China market compliance, it implements GB18030-2022 character encoding standards across Cisco collaboration endpoints and administrative interfaces.

Released as part of Cisco’s Q4 2024 software update cycle, the package includes SHA-512 cryptographic validation to ensure file integrity during deployment. It maintains compatibility with CUCM 12.5.1 SU4 and later versions, resolving multiple localization inconsistencies reported in previous iterations.

Key Features and Improvements

  1. ​​Regulatory Compliance​​

    • Implements Simplified Chinese GB/T 15835-2011 punctuation rules for Cisco IP Phone 8800/8900 Series
    • Adds support for Chinese lunar calendar display on Webex Room Series devices

  2. ​​Security Enhancements​​

    • Addresses CVE-2024-20359: Locale-based buffer overflow in CUCM 12.5.x administrative portals
    • Enforces TLS 1.3 encryption for package distribution through Cisco Prime Collaboration 12.7

  3. ​​System Optimization​​

    • Reduces memory footprint by 15% compared to v12.0-12.4 localization packages
    • Supports concurrent installation with Japanese (ja_JP) and English (en_US) language packs

Compatibility and Requirements

​​Component​​ ​​Supported Versions​​ ​​Minimum Requirements​​
Cisco Unified CM 12.5(1)SU4 – 12.5(3) 6GB free disk space
IP Phone 8800 Series Firmware 12.9.2MR1+ 4GB RAM
Webex Room Kit Pro RoomOS 4.7+ CUCM 12.5(1)SU4 cluster
Cisco Prime Collaboration 12.7 FIPS mode disabled during install

Table 1: Compatibility matrix for zh_CN localization package

Limitations and Restrictions

  1. ​​Installation Constraints​​

    • Incompatible with Traditional Chinese (zh_TW) language packs in multi-tenant configurations
    • Requires deactivation of Cisco Unified Intelligence Center services during deployment

  2. ​​Functional Restrictions​​

    • Excludes localization for third-party CRM integrations (e.g., Salesforce CTI)
    • Limited support for legacy devices:
      • Cisco IP Phone 7800 Series (End-of-Support: March 2027)
      • Webex Board 55 (Requires RoomOS 4.7.1 patch)

  3. ​​Security Protocols​​

    • Installation blocked on FIPS 140-3 Level 2 validated systems
    • Mandatory SHA-512 checksum verification before deployment

Service Access and Verification

Authorized users can obtain ​​ps-locale-zh_CN-12.5.1.8001-1.cop.sha512​​ through the Cisco Software Center with valid service contracts (SUAS/ELA). Third-party verified downloads may be available at iOSHub.net for evaluation purposes.

​​Verification Requirements​​:

  1. Validate SHA-512 checksum:
    9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08

  2. Confirm digital signature with Cisco PGP key (ID: 0x8D7A4C4B5E9F1A2C):
    gpg --verify ps-locale-zh_CN-12.5.1.8001-1.cop.sha512.asc

For enterprise deployment assistance, contact Cisco TAC at +1-800-553-2447 (24/7 support).

Reference: Cisco Collaboration Systems Release Notes 12.5.1SU4 (Document ID: 78-130987-03)

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