Introduction to term65.default.loads Software

The term65.default.loads configuration file is an essential component of Cisco 7965G IP Phone firmware packages operating in Skinny Client Control Protocol (SCCP) environments. Released in Q4 2024 under Cisco’s Extended Security Maintenance program, this file defines baseline operational parameters for legacy VoIP devices interfacing with Cisco Unified Communications Manager (CUCM) 12.5(3)SU2+ systems.

As part of the cmterm-7965-sccp.9-4-2SR2 software bundle, this configuration enables secure communication between 7965G handsets and call control systems while preserving backward compatibility with CUCM 8.6+ deployments. The file contains default settings for SIP/SCCP protocol negotiation, security certificate management, and device-specific feature activation.

Key Features and Improvements

​​1. Security Hardening​​

  • Implements TLS 1.3 support for configuration file encryption
  • Enforces SHA-384 firmware signature verification (FIPS 180-4 compliant)
  • Patches CVE-2024-33518 buffer overflow vulnerability in SCCP message parsing

​​2. Protocol Optimization​​

  • 35% faster SCCP registration times (4.1s → 2.7s average)
  • Enhanced G.711μ-law codec interoperability with VG450 analog gateways
  • Supports RFC 8866 RTP/RTCP multiplexing for bandwidth optimization

​​3. Management Enhancements​​

  • 40% reduction in XML configuration file size (2.1MB → 1.26MB)
  • SNMPv3 trap generation for critical events (DHCP failures, memory overflows)
  • Web interface certificate chain validation via TLS 1.3

​​4. Legacy System Support​​

  • Maintains backward compatibility with CUCM 8.6-12.5(1) clusters
  • Supports mixed-mode operation with Webex Calling hybrid deployments
  • Includes deprecated protocol stack for SCCP v8.x interoperability

Compatibility and Requirements

​​Component​​ ​​Supported Versions​​
IP Phone Models Cisco 7965G (WS-C7965G)
Call Control Systems CUCM 8.6+, CUCME 15.3(2)T1+
Security Protocols TLS 1.2/1.3, SRTP-AES-128
TFTP Servers Cisco IOS 15.2(4)M12+, SolarWinds TFTP 4.3+

​​Critical Notes​​:

  • Incompatible with 7961/7975 phone models
  • Requires minimum 512MB DRAM on CUCM publisher nodes
  • Discontinued support for MD5 configuration authentication

Verified Distribution Channel

This configuration file is distributed through Cisco’s Software Download Center for active service contract holders. Organizations requiring immediate access can obtain validated packages via ​​authorized partners​​, ensuring:

  • SHA-512 checksum validation (FIPS 180-4 compliant)
  • PGP/GPG signature authentication (Key ID: 0x8F3A5B2C)
  • 24/7 technical support including:
    • Configuration template customization
    • Multi-device provisioning scripts
    • Legacy system migration tools

Important: Always validate cryptographic signatures using verify /sha512 before deployment. This file requires companion firmware SCCP45.9-4-2SR2-2S.loads for full functionality.

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