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VSF-Fortitude8 9.6 Release Notes

From Zenitel Wiki

This document provides the release notes for VSF-Fortitude8 9.6 with incremental bug fix releases. The release notes describe new features, improvements and issues fixed after VSF-Fortitude8 9.5.3.1.

Release info

Name: VSF-Fortitude8
Description: VSF-Fortitude8 is a firmware for Zenitel devices based on the IMX8 processor.

The firmware is delivered in two different files:

  • vsff8-9.6.3.x - Used for standard in-field upgrades
  • vsff8-prod-9.6.3.x - Used in production- and recovery upgrades.

Version: 9.6.3.0
Date: 11.11.2026
Status: General Availability


VSF-FORTITUDE8 9.6.3.0

Improvements

DS-1993 DNS SRV Support and Transport Selection for SIP

Manual DNS SRV record configuration (sip_srv_record_name) has been removed in favor of standard DNS SRV/NAPTR discovery using the configured Server Domain. When the outbound transport is set to ANY, proxy port is automatically resolved (set to 0 / Auto).

  • Action required: Users upgrading stations with custom manual SRV records must configure the target domain in the standard Server Domain.

DS-1253 Support for Cisco Webex integration has been added

Zenitel devices running in SIP mode can now register and operate with Cisco Webex Calling. Leveraging RFC-3263 DNS SRV discovery and TLS/SRTP encryption, stations can participate in calls with Webex soft clients, external PSTN lines, and other registered intercoms.

DS-1916 Recalibrated Automatic Volume Control (AVC) Measurement on ZDD and ZSD

Recalibrated mic level SPL on ZDD-1 and ZSD-1 allowing AVC to adjust loudspeaker levels more naturally based on room noise.

Note: In version 9.5 the reported mic SPL levels were about +10 dB too high. The mic frequency responses were also tuned on these devices.

DS-1879 Acoustic Tuning & Echo Suppression Improvements

Updated acoustic filter profiles for TMIV+ station to minimize resonance, suppress echo artifacts, and deliver clearer speech intelligibility during open-duplex calls.

DS-1870 Acoustic Tuning & Echo Suppression Improvements

Updated acoustic filter profiles for TCIV+ stations to minimize resonance, suppress echo artifacts, and deliver clearer speech intelligibility during open-duplex calls.

Fixed issues

DS-1986 ZSD-1 can now configure ONVIF profiles via the web interface

Previously, ONVIF profiles on ZSD-1 devices could only be configured directly through ONVIF.

ONVIF profiles can now also be configured through the device web interface, providing a configuration experience consistent with similar devices.

DS-1905 Multitone tone test robustness adjustments

Adjusted thresholds for tone FFT bin magnitude feedback from speaker to mic to reduce false negatives in moderate to high noise.

DS-1901 Security Update

Resolved vulnerabilities related to: CVE-2026-95377 OS command injection via DHCP provisioning.

  • Action: Upgrade to 9.6.3.0 or later for SIP, IC-Edge and ICX-Alphacom, and 10.1.3.0 or later for Zenitel Connect.




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