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ZIPS 9.6 - Release notes

From Zenitel Wiki

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

Release info

Name: VSF-Fortitude Audio Only
Description: VSF-Fortitude Audio Only is a firmware for Zenitel devices based on the IMX8M Nano processor.

The firmware is delivered in two different files:

  • vsff8mn-9.6.3.x - Used for standard in-field upgrades
  • vsff8mn-prod-9.6.3.x - Used in production- and recovery upgrades.

Version: 9.6.3.0
Date: 11.11.2026
Status: General available


VSF-FORTITUDE Audio Only 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-1898 ZIPS-C/WC/H/HHO Improved audio frequency response on Mic and Loudspeaker signals

Audio tuning updates have been introduced for ZIPS-x devices to improve speech intelligibility and reduce audio distortion.

These enhancements provide a clearer and more natural voice experience during speaker half-duplex communication.

DS-1564 Support for new ZIPS Audio Kits (ZIPS-K & ZIPS-KOE)

Added software support for the new Zenitel IP Speaker Kits:

  • ZIPS-K (Indoor Kit)
  • ZIPS-KOE (Outdoor Kit with Enclosure)

The kits provide two configurable GPIOs and a dedicated 24 VDC output for connecting external devices such as beacons and strobes.

Fixed issues

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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