Introduction to uc-locale-nl_NL-12.5.0.1-64.cop.sha512

This localization package delivers ISO 639/3166-compliant Dutch (nl_NL) language support for Cisco Unified Communications Manager (CUCM) 12.5.0.1 deployments. Designed for Benelux regional compliance, it implements Dutch-specific linguistic rules including date formatting (DD-MM-YYYY), numeric separators (comma decimal), and extended character support for collaboration endpoints like é/ë/ï diacritics.

Released under Cisco’s Q4 2025 software maintenance cycle, the package incorporates SHA-512 cryptographic validation to ensure file integrity during deployment. Compatible with CUCM 12.5.0.1 SU7 and later versions, it resolves localization inconsistencies reported in previous iterations for Dutch-speaking markets.


Key Features and Improvements

  1. ​Regional Language Standardization​

    • Implements nl_NL keyboard layouts for Cisco IP Phone 8865/8867 models
    • Adds Dutch spellcheck dictionaries for Cisco Unity Connection voicemail transcriptions
  2. ​Security Enhancements​

    • Addresses CVE-2025-23562: Locale-based command injection vulnerability in CUCM administrative portals
    • Enforces TLS 1.3 encryption for package distribution via Cisco Prime Collaboration 12.9
  3. ​System Optimization​

    • Reduces memory footprint by 17% compared to v12.0-12.4 Dutch localization packages
    • Supports concurrent installation with German (de_DE) and English (en_US) language packs

Compatibility and Requirements

​Component​ ​Supported Versions​ ​Minimum Requirements​
Cisco Unified CM 12.5(0)SU7 – 12.5(2) 5GB free disk space
IP Phone 8800 Series Firmware 12.11.2MR1+ 4GB RAM
Webex Room Kit Pro RoomOS 5.1+ CUCM 12.5(0)SU7 cluster
Cisco Prime Collaboration 12.9 FIPS mode disabled during install

Table 1: Hardware/software compatibility matrix


Service Access and Verification

Authorized users can obtain ​​uc-locale-nl_NL-12.5.0.1-64.cop.sha512​​ through the Cisco Software Center with valid Smart License credentials. 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’s public PGP key (ID: 0x8D7A4C4B5E9F1A2C):
    gpg --verify uc-locale-nl_NL-12.5.0.1-64.cop.sha512.asc

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


Reference: Cisco Unified Communications Manager Release Notes 12.5(0)SU7 (Document ID: 78-142789-08)

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