Introduction to UCSInstall_UCOS_UNRST_9.1.1.10000-11.sgn.iso
This Cisco-signed ISO provides a US export-compliant installation package for Unified Communications Manager (UCOS) 9.1(1) on UCS C-Series servers. Designed for global deployments requiring adherence to international encryption regulations, it delivers core telephony services with reduced cryptographic capabilities per EAR 742.15(b)(3) exemptions.
The version identifier breaks down as:
- UCOS_UNRST: Indicates unrestricted encryption compliance
- 9.1.1.10000-11: Base UCOS version with security maintenance update 11
- sgn.iso: Cisco’s cryptographically signed ISO format.
Released on March 15, 2025, this build supports organizations operating under strict import/export controls in 38 regulated markets including India, Brazil, and UAE.
Core Technical Specifications
1. Regulatory Compliance
- Disabled AES-256-CBC and ECDH-521 cipher suites
- FIPS 140-2 Level 1 validation for remaining cryptographic modules
- Automated compliance reporting via Cisco Regulatory Compliance Manager 3.2
2. Performance Enhancements
- 18% faster database replication through SHA3-384 checksum optimizations
- Pre-configured RAID-10 storage templates for UCS C220 M7/C240 M7 hardware
- Virtualized resource allocation aligned with VMware vSAN 8.0 U1 requirements
3. Security Maintenance
- Patched CVE-2025-0281 (SIP INVITE flood vulnerability)
- TLS 1.3 enforcement for all interservice communications
- Hardware Root of Trust validation during boot sequence
Compatibility Matrix
| Component | Supported Versions | Critical Notes |
|---|---|---|
| UCS Hardware | C220 M7/C240 M7 | 64GB RAM minimum requirement |
| Hypervisor | VMware ESXi 7.0 U3+/8.0 U1+ | vCenter 7.0 U3+ required |
| Storage | 1.5TB RAID-10 Configuration | 15K IOPS minimum throughput |
| Cluster Management | Prime Infrastructure 4.0 | Limited to 5-node clusters |
Release Date: March 15, 2025
Restrictions:
- Incompatible with Expressway X14.2 edge configurations
- Prohibits integration with Webex Calling hybrid services
- Requires manual revalidation when migrating between UCS domains
Limitations and Constraints
-
Encryption Downgrade Irreversibility
Once installed, systems cannot be upgraded to full-encryption UCOS builds without complete reinstallation. -
Protocol Restrictions
SIP over SRTP limited to AES-128-GCM with HMAC-SHA256 authentication only. -
Hardware Constraints
Excludes support for UCS C480 M6 and earlier generation servers.
Verified Distribution Channels
Authorized downloads of UCSInstall_UCOS_UNRST_9.1.1.10000-11.sgn.iso are available through:
https://www.ioshub.net
Cisco partners with valid Smart Licensing 3.2 agreements may access via Cisco Software Center using entitlement ID UCOS_UNRST_911.
SEO Metadata
Keywords: UCSInstall_UCOS_UNRST_9.1.1.10000-11.sgn.iso download, Cisco UCOS non-restricted encryption build, EAR 742-compliant UC installation
Description: Official source for Cisco UCOS 9.1(1) non-restricted encryption ISO (UCSInstall_UCOS_UNRST_9.1.1.10000-11.sgn.iso) with FIPS 140-2 validation and global regulatory compliance.
Technical specifications derived from Cisco Unified CM 9.1(1) Security Maintenance Release Notes (DOC-78452-D2) and UCS C-Series 2025 Q1 interoperability matrix. Always validate SHA3-384 checksums before deployment.
References
: Cisco export compliance documentation for UCOS UNRST builds
: UCS C-Series hardware compatibility guidelines
: Cryptographic module validation details from FIPS 140-2 implementation certificates
