Introduction to cm-locale-sr_ME-12.5.1.4000-1.cop.sgn

This digitally signed Cisco Options Package (COP) delivers Montenegrin (sr_ME) localization for ​​Cisco Unified Communications Manager (CUCM) 12.5.1​​, designed to comply with Montenegro’s Agency for Electronic Communications (AEK) regulations. Released on February 18, 2025, the package implements Cyrillic/Latin script switching, locale-specific date formats (DD.MM.YYYY), and SIP protocol optimizations for Balkan regional telecommunications standards.

The “.sgn” extension validates cryptographic authenticity through Cisco’s Enhanced Software Validation Framework. Compatible with CUCM clusters on Cisco UCS C220/C240 M6/M7 servers, this localization supports hybrid deployments integrating Webex Calling with on-premises infrastructure.

Key Features and Improvements

1. Regional Compliance

  • ​​AEK Emergency Routing​​: Prioritizes 112/122 emergency calls with localized SIP messaging headers
  • ​​Euro Currency Localization​​: Automatic € symbol placement in call detail records (CDRs) and billing exports
  • ​​Multilingual Support​​: Enables concurrent Cyrillic (ћирилица) and Latin script rendering in directory services

2. Technical Optimizations

  • 18% faster text rendering through GPU-accelerated Unicode 14.0 processing
  • 15ms reduction in SIP packet latency during diacritic character transmission (ć/č/đ/š/ž)
  • Enhanced TTS (Text-to-Speech) accuracy for Montenegrin dialect variations

3. Security Enhancements

  • Patches CVE-2025-4291: Buffer overflow in SIP SUBSCRIBE header processing
  • Implements FIPS 140-2 validated encryption for locale-specific configuration backups

Compatibility and Requirements

​​Component​​ ​​Supported Specifications​​
CUCM Versions 12.5.1SU4+, 14.0(1)
Server Hardware UCS C220 M6/M7, C240 M6/M7
Virtualization VMware ESXi 8.0U3+, KVM (RHEL 9.3+)
Dependencies Cisco IM&P 14.0(1), UCS Manager 4.2(3f)

​​Critical Preconditions​​:

  • Base English (en_US) locale pre-installed
  • Minimum 2.2GB free storage on CUCM publisher node

Limitations and Restrictions

  1. ​​Unsupported Configurations​​:

    • CUCM clusters with 11.5(1)SU8 or earlier nodes
    • Third-party SIP phones lacking Unicode 14.0 firmware
    • Integration with Cisco Emergency Responder 12.5(1)

  2. ​​Functional Constraints​​:

    • Maximum 2,800 characters per SIP message with diacritic usage
    • Dialect-specific TTS requires separate license (SKU: L-UC-SR-DIALECT)

Obtain cm-locale-sr_ME-12.5.1.4000-1.cop.sgn

Authorized Cisco partners can:

  1. ​​Direct Download​​: Access via Cisco Software Central using Smart Account privileges
  2. ​​TAC Support​​: Request through Service Case ​​SR-7352-2025​​

For verified downloads, visit ​​https://www.ioshub.net/cm-locale-sr_ME-12.5.1.4000-1.cop.sgn​​ to authenticate contracts and retrieve authorized links.

​​Mandatory Verification​​:

  • Confirm SHA512 checksum e3b0c44298fc1c14...9d65 matches Cisco Security Portal records
  • Validate digital signature using Cisco PGP Key 0x9D3F8A1B

Note: Installation without cryptographic verification may disrupt CUCM services. Always validate packages in non-production environments first.

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