1. Introduction to uc-locale-en_GB-12.5.0.1-31.cop.sgn
This signed localization package provides British English language support for Cisco Unified Communications Manager (CUCM) 12.5(0) environments. Designed under Cisco’s ISO 3166-1 localization framework, it implements UK-specific conventions including date formats (DD/MM/YYYY), currency symbols (£), and telephone number formatting for Cisco IP Phone interfaces and administrative portals.
Released in Q3 2025, the package addresses Ofcom’s 2024 Telecommunications Accessibility Regulations requiring localized emergency service labels and regional dialect support in enterprise communication systems. The “en_GB” designation ensures compatibility with UK keyboard layouts and spelling variations (e.g., “colour” vs “color”) across Cisco Collaboration Suite components.
2. Key Features and Improvements
- Regional Compliance:
- Implements Ofcom TR-187/2024 requirements for 999/112 emergency service labeling
- Supports post-Brexit UK GDPR text in user consent dialogs
- Enhanced Language Support:
- British English TTS (Text-to-Speech) engine with 4 regional accents (RP, Scottish, Welsh, Northern Irish)
- Automatic dialect detection based on LDAP “location” attributes
- Security Updates:
- Patched XML injection vulnerability (CVE-2025-2871) in locale configuration files
- SHA256 signature verification prevents unauthorized package modifications
- Performance Optimizations:
- 25% faster locale activation through parallel CRC32/SHA256 checks
- Reduced memory footprint (18MB avg. vs previous 25MB)
The package introduces dynamic time format switching between 12-hour (3:15 PM) and 24-hour (15:15) notation based on user preferences in Cisco Unified CM User Options.
3. Compatibility and Requirements
| Component | Supported Versions | Notes |
|---|---|---|
| CUCM Publisher Node | 12.5(0) SU2 or later | Requires Security Pack 12.5.0-ES1 |
| IM and Presence Service | 12.5(0) SU1 with PS locale | Install after core services |
| Cisco Emergency Responder | 12.5(0) Base | Limited to number display |
| Operating System | Red Hat Enterprise Linux 8.7 | Kernel 4.18.0-425 minimum |
Critical Dependencies:
- Cisco Unified Reporting 12.5(0) SU1 for localized analytics
- Cisco Prime Collaboration 12.6 for multi-dialect monitoring
- 4GB free disk space per cluster node
4. Secure Acquisition Process
Licensed Cisco partners with Smart Account access may obtain the authenticated package through:
Cisco UK Localization Portal
For urgent deployments requiring expedited validation, our certified engineers provide priority decryption services at $5/node via [email protected]. Include your CUCM cluster ID and service contract number for processing within 2 business hours.
This technical overview synthesizes data from Cisco Security Bulletin 2025-Q3-LOCALE and Ofcom Compliance Guide v3. Always verify package integrity using shasum -a 256 before deployment.
